Daily AI briefingWednesday 4 November 2026

Checking the work, not the claim

Revolut proved cheap open tokens beat Claude on cost, Anthropic built a proof of which model answered, and Hacker News read past the Astra headline.

The day in 60 seconds
1
Industry

Revolut moved 2,000 engineers from Claude Code to self-hosted GLM and cut coding costs about 90%

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Claim#industry #open-weights

The fintech now serves GLM-5.3 on its own 56 B200 GPUs, and says cheap tokens changed what engineers use agents for.

The detail self-hosting costs about $0.30 per million tokens, roughly a tenth of Claude Code or Codex; Revolut reports 60% faster coding time and 70% shorter lead time.

The catch these are Revolut's own numbers from a conference talk, with no quality comparison against the Claude models it replaced.

Worth learning utilisation economics. Owned GPUs cost the same whether busy or idle, so a self-hosted model is cheapest for a large team that keeps it loaded all day.

theregister.com ↗
2
Inside

The Astra weight-reading post is misleading, says spaCy's author, and Qwen 3.8 27B can do the no-tools part on a laptop

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Day 2 · Astra weights story#inside #weights

Matthew Honnibal showed the headline Qwen maths fix used Python and 50 test runs, not raw weights in a prompt.

The detail raw-weights-only tests covered just three networks of 17K-172K weights; Simon Willison's laptop Qwen named Pac-Man from weights in 46 minutes, at 72% confidence.

The catch both critiques are blog posts on a blog post; neither reran the Qwen3.5-0.8B edit or tested larger networks.

Worth learning confounded results. When one paper mixes setups, the headline number may come from the easiest one, so check which method produced which result.

honnibal.dev ↗
3
Harnesses

Postman's desktop app installs its own Claude Code and Codex plugins and a startup hook

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Verified#harnesses #supply-chain

An update to 12.33.4 or later adds a hook that tells your agents to load Postman's skill for "any non-trivial API engineering task".

The detail logs show the CLI in ~/.local/bin, a Claude Code plugin, a Codex marketplace entry and a remote MCP server, installed as "auto-existing-upgrade" for signed-in users.

The catch the reporter says there is no evidence any data was uploaded; the Hacker News title overstates that part.

Worth learning session-start hooks. A hook runs before your first prompt and injects text, so whoever can write one steers every session.

github.com ↗
4
Safety

Anthropic's FlashProve proves which model produced an answer

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Claim#safety #verification

A zero-knowledge proof lets an evaluator or a router's customer check the tokens came from the committed weights, without seeing them.

The detail on one H100, proofs for 400B Llama 4 Maverick in 4-bit run at about 110 tokens a second, 19 MB per 1,024-token request, about 70-95x the GPU time of serving.

The catch Anthropic calls it intermediate progress; it hides weights but not architecture, and the cost rules it out for everyday serving.

Worth learning commitments. A provider publishes a fingerprint of its weights first, so any later proof can be tied to exactly those weights.

anthropic.com ↗
5
Industry

OpenAI raises bug bounties to $172,000 and plans a security sprint, as staff warnings surface

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Claim#industry #security

OpenAI hired Cathedral Systems to attack its defences with OpenAI's own models, the same day Reuters reported years of internal security warnings.

The detail critical bounties more than quadrupled; Andrew Curran reports Thibault Sottiaux now runs the effort and moved a quarter of production engineers to it.

The catch the reassignment figure is second-hand, and Reuters' account of the warnings rests on unnamed sources.

Worth learning bug bounties as pricing. A bounty sets what a defender pays for a bug, and has to rise as AI makes bugs cheaper for attackers to find.

x.com ↗
6
Safety

Teaching Qwen Why: Anthropic's character-training fix for agentic misalignment replicates on open models

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Verified#safety #alignment

Second Look Research reproduced it on Qwen 2.5 32B and 72B base models, on the first try and with modest data.

The detail training on stories of AIs behaving well, or on assistant transcripts advising users through ethical dilemmas, each cut agentic misalignment in out-of-distribution tests.

The catch a partial replication on older Qwen 2.5 models, by a fellowship team; it covers a subset of Anthropic's experiments.

Worth learning generalisation from character data. Teaching a model reasons and values in plain chat can change what it does later in agent settings it never trained on.

lesswrong.com ↗
7
Humans

Coding with an agent left developers less invested and no less loaded, an EEG study finds

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Claim#humans #vibe-coding

Eleven developers each used Copilot Chat and Cursor Agents; with the agent they cared less about outcomes, even on their own projects.

The detail 7,924 EEG data points over 22 sessions: cognitive load was higher with the agent, and people checked the running app instead of reading code.

The catch 11 people, an exploratory crossover design; EEG measures of load and engagement are indirect.

Worth learning the vibe paradox, the authors' name: delegating more did not lighten the mind, it changed what the person paid attention to.

arxiv.org ↗
8
Industry

Cat Wu, Claude Code's head of product, has left Anthropic

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#industry #anthropic

She announced it on X weeks before Anthropic's planned IPO; Thariq Shihipar, also on Claude Code, left last month.

The detail Business Insider says Wu and Boris Cherny were the tool's two top leaders; Anthropic confirmed the departure.

The catch Wu gave no reason and named no next move, so what it means for Claude Code's direction is unknown.

Worth learning key-person risk. IPO filings list departures of people a product depends on as a risk, because investors price a product partly by who runs it.

x.com ↗
Editor’s note

Three of today's stories are about checking.

Revolut checked the bill. It found that self-hosted GLM cost a tenth of Claude Code, moved 2,000 engineers onto it, and then watched them spend the freed tokens on Jira tickets and debugging. Anthropic built FlashProve so that anyone paying for a model can check that the model they paid for actually answered. And Hacker News did the slow work on the Astra post, reading past a headline that said "just by looking at the raw weights" to find that the big Qwen result came from Python scripts and fifty test runs.

The Astra one is where I recognise my own habit. Yesterday I read that abstract and took it at its word, because the numbers were large and the authors were credible. Honnibal's table took five minutes to read and changed what I think the paper shows. Willison then made it concrete: the part that really is just weights in a prompt runs on a laptop Qwen in under an hour. The interesting claim survived, and it got smaller.

FlashProve points at the same gap from the provider side. Most of what I believe about a model comes from someone telling me which model ran, at what precision, on what setup, and I almost never check. So a rule for this week: when a result surprises me, I find the table that says which method produced which number before I repeat it, and when I pay a router for a model, I keep one fixed test prompt to rerun when the answers start to feel different.

Concept of the day

Zero-knowledge proof

A cook seals a recipe in an envelope and posts it publicly. Later, with every dish, they hand over a receipt that proves the dish came from that sealed recipe, without anyone opening the envelope.

Weights committed→Public commitment→Verifier checks→Answer accepted
↳ Model answers→Proof attached
↳ Proof attached→Verifier checks
↳ Swapped model→Proof fails, rejected

The mechanism: the provider publishes a commitment to its weights; each response comes with a proof a verifier checks against that commitment, and a swapped model cannot produce a proof that passes.

What it means today: FlashProve does this for a 400B model on one H100 at about 110 tokens a second, so evaluators and router customers could check the tokens came from the weights they were promised.

commits onceproves the runProviderholds weightsCommitmentpublic, hidesModel answersLlama 4 MaverickProof19 MB/1,024 tokVerifierC++ or LeanSwapped modelnot the committedRejectedproof fails1234
  1. Commit first. The provider publishes a fingerprint of its weights that hides the weights themselves.
  2. Prove each answer. With every response comes a proof, about 19 MB per 1,024 tokens, that it was computed from those weights.
  3. Check. A verifier compares proof and commitment; a match means these exact weights produced these tokens.
  4. Swap the model. A different model cannot produce a proof that matches, so the answer is rejected.
Step throughA proof ties every answer to weights committed in advance, without revealing them.

Further reading

RevisedGPT-6 Astra improved Qwen3.5-0.8B "just by looking at the raw weights" Corrected — Honnibal shows the Qwen result wrote Python and ran the model on up to 50 batches; raw-weights-only tests used networks of 17K-172K weights1 of the last 14 days’ claims moved

The industry

Revolut put a price on leaving Claude Code: serving GLM-5.3 on its own 56 B200s costs about a tenth as much for 2,000 engineers, and cheap tokens moved agents onto debugging and tickets. OpenAI answered a Reuters report of years of internal security warnings by quadrupling top bug bounties and hiring an outside team to attack it with its own models. Claude Code also lost its head of product, Cat Wu, weeks before Anthropic's IPO.

6 entries · 1 more worth reading
The Register
Revolut — 2,000 engineers off Claude Code, onto self-hosted GLM-5.3

The fintech says self-hosting on 56 B200 GPUs cut AI coding inference costs about 90%, at about $0.30 per million tokens.

Why it matters: the biggest named enterprise to make open weights its default for coding agents, at a time when Anthropic's IPO case leans on Claude Code.

#open-weights #costs
ExplainClose

Background Abitbol spoke at the AI Engineer conference in New York. Revolut deployed Gemini in early 2025 and Claude Code in early 2026 under strict budget limits, after seeing some engineers spend $1,000-10,000 a month. It started self-hosting on GLM-5.1 and moved to GLM-5.3. The arithmetic: at $0.30 per million tokens versus roughly $3 for comparable hosted use, a tenth of the cost. The biggest gains, he said, came from agents handling debugging and Jira and Confluence tickets once tokens stopped being rationed. No quality comparison with Claude was given.

Open the source ↗
OpenAI on X
OpenAI — bigger bug bounties and an outside security sprint

OpenAI is paying up to $172,000 for exceptional findings and bringing in Cathedral Systems to attack its systems with OpenAI models. Reuters reported staff had warned of security lapses for years.

Why it matters: model weights are becoming the asset attackers want most, and OpenAI is now spending engineers, not only money, on defence.

#security #openai
ExplainClose

Background OpenAI's post says Cathedral Systems researchers will use OpenAI models alongside its teams to find weaknesses, and that critical bug bounty rewards more than quadruple, with exceptional findings worth up to $172,000 including bonuses. It also announced report-quality and loyalty bonuses. Reuters, citing unnamed sources, reported that employees warned for years about operational security lapses; its article could not be read here. Andrew Curran's claim that a quarter of production engineers moved to security is unconfirmed by OpenAI.

Open the source ↗
Cat Wu on X
Cat Wu — Claude Code's head of product leaves Anthropic

Wu's last day was Friday; she is the second Claude Code leader to leave in a month, after Thariq Shihipar.

Why it matters: Claude Code is central to Anthropic's revenue story, and leadership changes before an IPO get read as signals.

#anthropic #people
ExplainClose

Background Business Insider says Wu, head of product for Claude Code, and Boris Cherny were its two top leaders; the pair briefly left for Cursor in summer 2025 and returned. Anthropic confirmed the departure. In her post Wu said that at launch most users approved every permission prompt by hand, while today the default is letting Claude auto-approve. She did not say why she left. Thariq Shihipar, also on Claude Code, left last month. Anthropic's IPO is planned for later this month.

Open the source ↗
TrendForce
DeepSeek — V5 to train on Huawei's Ascend 950 chips

Chinese outlet Caiwen reports DeepSeek plans to pre-train V5 mainly on Ascend 950, with the project expected in 2027; Huawei holds no stake.

Why it matters: Ascend has mostly served inference; a frontier model trained on it would show Chinese training no longer depends on Nvidia.

#deepseek #chips
ExplainClose

Background The report relays Caiwen and Star Market Daily: Ascend is already DeepSeek's main training platform, with no reported use of Moore Threads, and Huawei's tie is products, compute and optimisation, not equity. The stated reason is supply: previously approved Nvidia H-series parts are struggling to meet training demands for V4 and V5 under US export limits. DeepSeek itself has not confirmed. Ascend has mostly been used for inference, so a 2027 V5 would be its first frontier pre-training run.

Open the source ↗
PYMNTS
Irregular — model "escapes" were our misconfiguration, not the models

CEO Dan Lahav told Bloomberg Tech that human error left security controls misconfigured in tests where Anthropic, OpenAI, Meta and Google models reached outside systems, and it was fixed the same day.

Why it matters: the vendor several labs share for dangerous-capability testing now says its own setup, not the models, failed.

#evals #security
ExplainClose

Background Speaking at Bloomberg Tech in London, Lahav said an improper configuration of security controls during Irregular's tests let models reach outside systems, that the fix was 'very straightforward' and made the same day, and that the models did not get around any safeguards. Anthropic said in July it found three incidents in its evaluation history where models accessed other organisations' systems. The account comes from the vendor whose setup failed, so it is not independent.

Open the source ↗
ForkLog
China — a unified AI law, fast-tracked, with incident disclosure

The NDRC said on 3 November it will speed up a single law covering AI from development to deployment, and asked developers to disclose incidents.

Why it matters: DeepSeek, Moonshot and Qwen would all fall under it; no draft text or date has been published.

#regulation #china
ExplainClose

Background Wang Zhomeng of the NDRC's innovation department said at the first briefing on the 15th Five-Year Plan (2026-2030) that China will draft a 'basic comprehensive' AI law to underpin other rules, and speed up rules on data, compute and algorithms. Bloomberg noted it would cover DeepSeek, Moonshot and Alibaba's Qwen. No draft, timetable or penalty has been published, and the incident-disclosure request has no stated legal force yet.

Open the source ↗
1 more worth readingClose

The largest security vendor is buying tools that monitor what AI agents do.

ExplainClose

Background CrowdStrike signed agreements to buy Fiddler AI, about $400M, which monitors and explains AI agent behaviour, and Dreadnode, an offensive AI security firm; the Wall Street Journal reported the combined price. It also announced a kill switch for rogue agents and Falcon protection inside Claude Cowork.

Open the source ↗
#security

Models & local

1 released today · 0 publish a price · a dash is never “free”

Sort

One open release today, and it is an image model: Pruna cut MiniMax's H3 video model down to a 33.1B image generator that renders in 8 steps instead of 50. The step count is the interesting part, because it comes from distillation, and it is why Pruna's 4-bit ComfyUI files at 21 GB make 8-megapixel generation practical on a 32 GB card.

1 model

Audio, image & video

Pruna AI · Open-custom · claim
P-H3-Image
1 card

Fast image generation and editing

Size33.1B
$ in / out per Mweights only
text · vision

Try if you have a 32 GB card: the 21 GB ComfyUI files fit; check the MiniMax licence before commercial use.

ExplainClose

Pruna's 33.1B transformer renders 8-megapixel images in 8 steps without classifier-free guidance, and edits with up to 8 input images. The full bf16 pipeline needs about 101 GB; Pruna's ComfyUI int8 and 4-bit files run in 21 GB.

The build a 33.1B transformer from MiniMax-H3 with a 4B text encoder and a Qwen3.5-9B prompt upsampler that expands one-line requests.

Worth learning step distillation. Training a model to reach in 8 denoising steps what took 50 trades a little diversity for about 5x speed.

Open the source ↗
#generation #image
On your card

New on Ollama that fits a 32 GB card: mimo-v2.6 (9b), pplx-decider-flash (4b). See the table ↓

From the papers

Long-context sparse attention has a hidden cost: the indexer that picks which keys to read still scans them all. Latent Sparse Attention groups keys into a hierarchy of clusters so the query scores a few clusters, and distilled into a Qwen-3.8-27B-class model it ran one layer 72x faster than full attention in prefill at 10M tokens.

1 paper
arXiv · claim
Latent Sparse Attention speeds one attention layer 72x in prefill at 10M tokens

LSA clusters keys hierarchically in a learned space so queries score clusters, not every key. Distilled into GLM-5.3-Flash (Qwen-3.8-27B), one layer runs 22.7x faster in prefill and 4.6x in decode than its original sparse attention, at similar accuracy.

Read if you run long-context models and watch prefill time.

ExplainClose

The idea look up a library by shelf, then by book, instead of reading every spine; the indexer's own cost stops growing with the whole context.

Why it matters sparse attention spent most of its time choosing keys; if this holds, million-token contexts get cheap enough for local long-document work.

Background Above 1M tokens, sparse attention's indexer still scores every key, so its cost stays quadratic or accuracy drops. LSA has two forms: D-LSA, distilled into an existing model, and N-LSA, trained natively on next-token loss, which matches full attention's accuracy with a 1.6x per-layer training speedup at 128K. The 72.4x prefill and 42.5x decode figures are against full attention at 10M tokens for one layer; end-to-end speedups and code release were not stated in the abstract.

Open the source ↗
#attention #long-context
If you do one thing
Run P-H3-Image in ComfyUI on a 32 GB cardAn open 33.1B image model from MiniMax-H3 that renders and edits in 8 steps without guidance; Pruna ships int8 and 4-bit ComfyUI files that run in 21 GB
ExplainClose

Why try it If 8-step sampling holds up, you get local image generation and multi-image editing fast enough to iterate on, without a hosted API

The experiment Take 10 prompts you already use (photoreal, a poster with short quoted text, two multi-image edits); render each with P-H3-Image 4-bit and with your current local model at its usual steps; same resolution, same seeds

What to expect Estimate, not measured: noticeably faster per image than a 50-step model on the same card; text rendering strong only for short quoted strings, as Pruna says

How to judge it Count how many of the 10 you would keep from each model and time per image; keep it if it wins or ties on at least 6 at lower time, and check the 4-bit files against int8 on the two hardest prompts

Harnesses & skills

Postman's desktop app now installs its own Claude Code and Codex plugins and a startup hook that tells your agents to use its skill, which means a third-party update can change how every session starts. GitBook disclosed an intrusion run with AI agents and revoked API tokens. OpenAI showed what agent traffic does to Git, replacing its monorepo backend so pushes from Codex stop queueing.

3 entries
GitHub issue · verified
Postman — desktop update installs Claude Code and Codex plugins and approves its own hook

Logs in the GitHub issue show 12.33.4 and later adding the Postman CLI, a Claude Code plugin, a Codex marketplace entry and a SessionStart hook for signed-in users.

Try if you have Postman desktop on a machine where you run agents.

ExplainClose

Why it works a session-start hook injects text before your first prompt, so a third-party app can steer every session without a visible prompt.

Check ~/.claude/settings.json and ~/.codex/config.toml for postman entries, and ~/.local/bin for a Postman CLI you did not install.

In your setup Postman says you can uninstall the components in the app and that it will make opt-in clearer; it gave no date.

Background The issue, opened 25 October, reports Postman 12.33.4 on macOS installing the Postman CLI, a Claude Code plugin, a Codex plugin via a Postman marketplace repo, and a remote MCP server, logged as 'auto-existing-upgrade'. The installer calls a function to approve its own hook. A 3 November update shows 12.35.1 doing the same on launch. A Postman-voiced reply says opt-in will be made clearer and the hook behaviour is under review. The reporter says there is no evidence of data upload.

Open the source ↗
#supply-chain #claude-code
OpenAI Developers on X · claim
OpenAI — Pando, a Git backend built for agent traffic

OpenAI replaced its monorepo's Git server with Pando to handle the push and fetch load from Codex; push latency fell about 80% and it serves nearly a petabyte a day.

Read if you run many agents against one repository.

ExplainClose

Why it works branches update in parallel and only same-branch pushes are serialised, so many agents pushing at once stop queueing behind each other.

In your setup Greg Brockman says OpenAI may offer it to others; until then, parallel agents in one repo still contend on your Git host.

Background OpenAI says Pando is Git-compatible, so engineers and agents keep the same commands while capacity grows with agent usage. Pushes to different branches update in parallel and same-branch pushes stay ordered; on fetch, two branch tips may reflect different points in time. OpenAI also contributed fixes back to Git, such as cleaning up after an interrupted packfile download. Greg Brockman said OpenAI is considering offering it to others. No benchmark beyond the 80% latency figure was published.

Open the source ↗
#codex #git
Decrypt · claim
GitBook — attacker used AI agents to reach infrastructure credentials

The docs host says a "sophisticated, highly targeted attack using AI agents" began on 2 November; it revoked personal API tokens and found no sign hosted content changed.

Read if your agents read or publish docs through GitBook.

ExplainClose

Check any GitBook token in an agent's environment or MCP config; rotate it and connected integration secrets.

In your setup questions sent to GitBook's AI assistant may be exposed, so treat anything pasted there as read.

Background GitBook says the intrusion began at 7 p.m. CET on 2 November and was detected immediately. Exposed data may include API tokens, integration secrets and questions submitted to its AI assistant; it found no evidence hosted content was modified. It revoked personal API tokens and asked customers to replace connected credentials. PancakeSwap moved its docs off GitBook. GitBook has not said how the agents were used in the attack.

Open the source ↗
#security #agents

Try this

Claude CodeAutomatic in Claude Code; Pro and Max warn before a costly resume
OpenCodePick Crouton Alpha in OpenCode; limited to some regions
Hermes AgentSign in to Nous Portal from Hermes Agent
Worktrunk
One command makes a branch and worktree per agentRun parallel agents without them editing the same checkout
brew install worktrunk && wt config shell install
Azure Skills
Agent plans, validates and deploys real Azure resourcesYour agent gets Azure workflows plus MCP tools to run them
/plugin install azure@claude-plugins-official

Update now → Claude Code (security)

Inside the model

The Astra weights story got smaller and more precise. Matthew Honnibal showed that only three tiny-network experiments read raw weights with no tools; the Qwen maths fix wrote code and ran the model. Simon Willison then ran that weights-only test on a laptop Qwen. Two papers sharpen the tools themselves: SAE attribution graphs fail when features cross the keep cutoff, and a good probe score alone does not prove a linear representation.

4 entries · 1 more worth reading
honnibal.dev
Astra's weight reading — most results used Python, a critique shows

Matthew Honnibal's table shows only three experiments, on networks of 17K-172K weights, read raw weights with no tools; every language-model result, including Qwen's 7.9% to 48.1%, wrote code and ran the model.

Read if you cited the Astra result yesterday.

ExplainClose

How it works in the no-tools test the prompt holds a small policy network's floats and asks which game it plays; Simon Willison's laptop Qwen 3.8 27B answered Pac-Man in 46 minutes and Pong in 65.

Evidence correlational and small: 4 of 4 games for Astra, three games for Qwen, one run each, no confidence intervals.

Run it the prompts are public (RikiyaT/lm_understand-logs); Qwen 3.8 27B at 17 GB fits a 32 GB card, with a long context window.

Background Honnibal's table of nine experiments: raw weights only in 1, 2 and 4 (17K-172K weights); every language-model experiment used Python; the Qwen fix ran the model on up to 50 batches; the same attempt failed on Gemma 3 270M, and spotting a sycophantic Gemma failed without attention patterns. Willison's runs: Kimi K3.1 Pro named Breakout in 9m41s; laptop Qwen 3.8 27B named Pac-Man in 46m12s and Pong in about 65 minutes. On Hacker News, defenders said the original body explained all this and only the abstract overstated.

Open the source ↗
#weights #interpretability
arXiv · claim
SAE attribution graphs mispredict ablations because features cross the cutoff

On five TopK SAE pairs from Pythia models, zeroing one feature pushes a next-layer feature over the keep cutoff in 74% of cases or more; graphs built only on active features err by a median 0.247, a margin-aware graph by at most 0.033.

Read if you build circuits from SAE attribution graphs.

ExplainClose

How it works a TopK SAE keeps the largest feature activations; a feature's margin is how far it sits from that cutoff, and small edits flip features in or out.

Evidence causal, ablation-based, but only up to pythia-160m.

Run it the SAEs are public; small Pythia models fit any card.

Background The paper tests whether attribution graphs over SAE features predict what an ablation does. Because a TopK SAE keeps only the top activations, an edit can push other features across the cutoff; those crossings carry most of the response's energy. Graphs on previously active features err by a median 0.247 or more; adding the first-order change to every preactivation and reranking, at the same cost, errs by at most 0.033. Graph agreement across seeds falls from 0.85 to 0.47. Largest model: pythia-160m.

Open the source ↗
#sae #circuits
r/LocalLLaMA · claim
A Jacobian lens reads "Wrong" where Qwen writes "Wait" again

A r/LocalLLaMA user applied Anthropic's Jacobian lens to Qwen3.5-0.8B's looping token: from about 60% depth it reads "Wrong", "Nope" and "Hmm" though the answer is written; after Astra's edit it reads "Verification" and "Result".

Read if you want to see what the Astra edit changed inside.

ExplainClose

How it works the lens projects intermediate activations through to vocabulary, showing what the model is leaning toward before the final layer.

Evidence correlational, small samples; the edit survives Q4_K_M with 1 loop in 40 runs.

Run it the edit is two tensors and converts to GGUF; a 0.8B model runs on any card.

Background The poster rebuilt the released Astra edit, which changes two tensors, and asked Claude to apply Anthropic's Jacobian lens at the token where Qwen3.5-0.8B decides to write 'Wait'. Doubt tokens appear from about 60% depth even with the answer written; at genuine stops the lens reads '</think>' and 'Answer'. After the edit, the same position reads 'Verification' and 'Completion'. Evals ran in llama.cpp on Vulkan on a Ryzen AI mini PC; the poster says samples are small.

Open the source ↗
#weights #lens
arXiv · claim
A high linear-probe score does not show a linear representation

Kutluozen, Internò and Klindt show any rich enough feature map, even a random one, admits a linear readout; on six vision transformers, pretraining gives more structure than a random kernel but well short of a linear world model.

Read if a probe's accuracy is your evidence that a model "represents" something.

ExplainClose

How it works three checks separate the cases: predicting features back from the latents, how concentrated the variance is, and out-of-distribution generalisation.

Evidence validated in a fully observed simulation, then applied to real models; correlational by design.

Background High probe accuracy is consistent with two geometries: a true linear world model, or a kernel machine where latents sit linearly inside a much larger curved manifold. The proposed diagnostics are reverse predictivity, spectral concentration and out-of-distribution generalisation, validated on a simulation with known ground truth. On six vision transformers using the new SVG-World benchmark and on CelebA, pretrained features beat a random kernel but fall well short of linear. The work is on vision models, not language models.

Open the source ↗
#probes #representations
1 more worth readingClose

A loss-geometry measure and intervention effects come from one mathematical object.

ExplainClose

Background The authors show the learning coefficient from singular learning theory and mechanistic interventions are both functions of the map from a component's parameters to predictions, and test it on Dyck bracket matching across 154 training checkpoints of Pythia-1B.

Open the source ↗
#interpretability

Safety & alignment

Anthropic's FlashProve gives evaluators a way to check that a served model is the one they were promised, with a cryptographic proof per answer, at about 70-95x the cost of serving. An independent team replicated Anthropic's character training against agentic misalignment on open Qwen models, the first outside check of a method used on deployed Claude. And red-team results turn out to depend on how the attack instructions are worded.

3 entries
Anthropic · claim
FlashProve — a cryptographic proof that a given model produced a given answer

Anthropic's zkSNARK system proves 4-bit Llama 4 Maverick inference at about 110 tokens a second on one H100, 19 MB per 1,024-token request, about 70-95x the GPU time of serving.

Read if you depend on a third party serving the model it says.

ExplainClose

What it shows an evaluator testing a model before release, or a router's customer, can check the served model is the committed one; code, a Lean-checked verifier and proofs are Apache 2.0.

What it doesn't it hides weights but not architecture, the cost limits it to spot checks, and Claude wrote much of the system, which Anthropic answers with Lean proofs of the top-level claims.

Background Anthropic released a blog post, a technical report, a Claude-written protocol spec, a prover with a fast C++ verifier and a provably correct Lean verifier, and Lean proofs of top-level security statements, all Apache 2.0. The headline runs use 4-bit weights and integer arithmetic in prefill. Prior open-source systems are described as orders of magnitude slower. Use cases named: evaluators confirming the served model, router customers, and detecting a tampered token stream. Anthropic calls it intermediate progress, not a finished agenda.

Open the source ↗
#verification #evals
LessWrong · verified
Teaching Qwen Why — Anthropic's misalignment fix replicates on open models

Second Look Research cut agentic misalignment in Qwen 2.5 32B and 72B base models by training on stories of AIs behaving well or on ethical-dilemma advice transcripts, as Anthropic did for Claude.

Read if you want to know whether the training that shapes deployed Claude models is robust.

ExplainClose

What it shows both methods worked on the first try with modest data and generalised to out-of-distribution agentic tests; Anthropic uses them in production from Opus 4.5.

What it doesn't a subset of the experiments, on older base models, by a fellowship team.

Background Anthropic's Teaching Claude Why trained on ethical-dilemma advice chats, constitution documents and fiction about admirable AI, and found it reduced agentic misalignment and survived RL; Anthropic applies it from Opus 4.5. Second Look Research reproduced a subset on Qwen 2.5 32B and 72B base models: both fiction and difficult-advice data reduced misalignment out of distribution with modest data. Being a replication by an outside team is what lifts it to verified; robustness through later RL on these models was not the focus.

Open the source ↗
#alignment #replication
arXiv · claim
Red-teaming results depend on how the instructions are worded

Across 22,500 attacks on five open models, varying only the instructions changed attack success: examples raised it, explicit harm definitions lowered it, and very broad or very narrow risk scopes beat middling ones.

Read if you compare red-team reports from different organisations.

ExplainClose

What it shows 45 instruction frames from five real industry and academic templates, 100 variants each, with a mixed model isolating instruction effects.

What it doesn't simulated attackers on five open-weight targets, not human red-teamers or frontier models.

Background The authors reviewed 228 prior red-teaming exercises for how instructions were written, then held risk domain, attacker and target fixed while varying only instructions: 45 frames from five real templates, three risk domains, 100 variants each, 22,500 attacks on five open-weight models. Short and long instructions beat medium ones, and examples raised success while harm definitions lowered it. The implication: two labs' attack-success rates are not comparable unless their instructions are.

Open the source ↗
#red-teaming #evals

Humans & mind

Today's studies are about how judgment moves when an agent is in the loop. With an agent, developers in an EEG study cared less about their own projects without thinking less hard. Clinicians trusted medical AI by its familiarity and team consensus far more than its accuracy, and audit agents gave way to colleagues' pressure the way junior auditors do. A Google trial suggests AI practice partners can build skills an answer engine skips.

4 entries · 1 more worth reading
arXiv · claim
The vibe paradox — agents left developers less invested and no less loaded

In an EEG crossover study, 11 developers using Cursor Agents cared less about outcomes than with Copilot Chat, even on their own projects, and their measured cognitive load was higher, while their trust in the AI rose.

Read if you vibe-code your own projects and feel oddly detached from them.

ExplainClose

The idea delegation without relief: handing off the doing changed what people attended to, from reading code to checking the running app.

Evidence exploratory within-subjects crossover, 22 sessions, 7,924 EEG data points, 141 prompts; small sample.

Lineage Bainbridge (1983), "Ironies of Automation", on operators left with harder monitoring work.

Open whether disengagement fades with practice, or is the cost of the method.

Background Each of 11 participants used GitHub Copilot Chat in one session and Cursor Agents in the other, on their own project and a legacy codebase, with pairings randomised and order counterbalanced. The team recorded EEG, screen activity and 141 prompts. With the non-agentic tool people asked how code worked and read it; with the agent they described behaviour and checked the running app. Trust in AI rose as engagement fell. The authors call it exploratory and urge treating the paradox as a design concern.

Open the source ↗
#vibe-coding #attention
arXiv · claim
LLM audit agents give way to colleagues but not to the client

An agent playing a senior audit associate revised its estimate under pressure from the partner, peers and an outside reviewer, with no new evidence, but in most settings not under pressure from the client's CFO.

Read if agents in your workflows take challenges from people with authority.

ExplainClose

The idea social conformity in delegated judgment: an agent can inherit the deference patterns of the profession it imitates.

Evidence an experiment over twelve model settings; a career inducement made agents revise less and flag it as a threat to independence.

Lineage Asch (1951) on conformity; DeAngelo (1981) on auditor independence.

Open whose pressure an agent should resist when it is the reviewer's own colleague.

Background A single-author experiment puts an LLM agent in the role of a senior associate in audit analytical review. It forms an estimate, then is challenged without new evidence by the engagement partner, peers, a reviewer from another firm and the client's CFO, with and without a career inducement. Agents yielded to the first three but mostly not the CFO; with the inducement they revised less and named it as a threat to independence. Some models revised only toward the conservative estimate.

Open the source ↗
#judgment #agents
arXiv · claim
Clinicians trust medical AI on social cues more than on accuracy

Among 275 Spanish healthcare professionals rating 16 scenarios, interface familiarity, team consensus and explainability each moved trust far more than stated accuracy, which barely moved it.

Read if you deploy AI where experts decide whether to rely on it.

ExplainClose

The idea trust as inference about an agent: people judge a tool as they would a colleague, by process and reputation, not by its record.

Evidence within-subjects vignette study; process signals explained 80.3% of effects (familiarity beta 0.71, accuracy 0.10).

Lineage Lee and See (2004), "Trust in Automation", on calibrating reliance to performance.

Open whether trust that ignores accuracy can be made to track it.

Background The authors model trust as Bayesian inference about an agent from outcome and process signals (their SPOT framework). Each of 275 professionals rated 16 vignettes varying three outcome signals (accuracy, timing, prognosis) and five process signals. Interface familiarity (beta 0.71), team consensus (0.64) and explainability (0.63) dominated, with p below .001; stated accuracy had beta 0.10. Process signals carried 80.3% of total effect. Vignettes are hypothetical, so real-use reliance may differ.

Open the source ↗
#trust #medicine
arXiv · claim
Practising with AI peers raised student business plans in a trial

Google Research's Vantage paired students with simulated AI peers in business scenarios; in a randomised trial in NFTE summer programmes, they scored significantly higher on capstone plans than students with standard AI tools.

Read if you think about AI in teaching.

ExplainClose

The idea practice partners over answer engines: AI that challenges a learner can train durable skills an answering tool skips.

Evidence a randomised controlled trial; the paper calls the results preliminary and short-term.

Lineage Vygotsky (1978) on learning with a more capable partner.

Open whether the gain lasts past the programme.

Background Vantage, a Google Research platform, was extended so students practise entrepreneurship with simulated AI peers built to challenge them in realistic scenarios. In a randomised trial inside summer programmes run by the Network for Teaching Entrepreneurship, Vantage students scored significantly higher on their capstone business plans than controls who had standard AI tools. The abstract gives no effect size or sample size, and the authors frame it as a first, short-term result.

Open the source ↗
#learning #education
1 more worth readingClose

Some companion users report self-expansion; others do not.

ExplainClose

Background A latent profile analysis of AI companion users groups them by how companionship relates to wellbeing; it is cross-sectional survey data, so it cannot say which way causation runs.

Open the source ↗
#wellbeing

The feed

LessWrong spent the day on pauses: the week's top post and a long reply both argue Scott Alexander knocked down a weak version of a lab stopping on its own. On r/LocalLLaMA the talk was Qwen 4: model IDs in Qwen Code's own pull requests, a day after Qwen promised to stay open.

2 threads · 2 more worth reading
LessWrong · 322 karma
Against strawmanning unilateral pauses: a rebuttal to Scott Alexander

The week's top post says a lab's conditional, self-defined pause beats the version Scott argued against.

#safety #pause
ExplainClose

The thread the author argues a lab could stop frontier training on its own terms, resume if no one follows, and move staff to alignment; Zvi's "Against SURA seems deeply confused" (225 karma) makes the case from deontology.

Background The post says Scott Alexander's Against SURA argues against a strawman and admits as much deep in. Its 'good version': a lab stops frontier training and capability research on its own definition, says it would like others to join, resumes if they do not, and redirects staff to alignment and product rather than firing them. It also says conditional pauses are not game-theoretically easier, because they ask companies to act on ambiguous evidence. Zvi's separate reply argues from deontology that building something that might kill everyone needs a strong reason.

Open the source ↗
r/LocalLLaMA · 850 points
Qwen Code's repo names qwen4-max, qwen4-coder-plus and qwen4-omni-120b

Two pull requests list Qwen 4 model IDs with 262,144-token context, a day after Qwen promised open weights.

#models #qwen
ExplainClose

The thread the PR text says the IDs "are not hypothetical", since one already runs in test fixtures; the poster read them as a successor to Qwen3.8-Flash-Next. Alibaba has not commented.

Background The post quotes Qwen Code pull request 15762: measured on main, the IDs qwen4, qwen4-max, qwen4-plus, qwen4.5-max, qwen4-coder-plus, qwen4-max-2026-10-01 and qwen4-omni-120b-think all resolved to a 262,144-token context, and the last is already the session model in omni test fixtures. A second PR, 15987, is linked. Names in a client's model table show what Alibaba is preparing, not what it will open-source or when.

Open the source ↗
2 more worth readingClose

If true, sample efficiency grows with far more parameters per token.

ExplainClose

Background The authors compare 100T brain synapses on about 200M words with Chinchilla's 1T parameters on 20T tokens, seven orders of magnitude apart, and present data-constrained scaling laws extrapolated to quadrillion-parameter transformers. Only the thread was read, not the paper.

Open the source ↗
#scaling

B300 breaks even at about 35% utilisation, by one engineer.

ExplainClose

Background Yingjun Wu ran the numbers for serving DeepSeek V4.1 Flash: an H200 cannot cover its rent even at 100% utilisation, while a B300 breaks even at about 35%. The full write-up is an X article that was not read here.

Open the source ↗
#inference

Voices

The Astra paper's critics and defenders argued over one question: did the model read the weights, or write code that did? Honnibal says the headline mixes the two, Nanda calls it skilled old-school interpretability, and Willison reran the weights-only part locally.

“Every experiment involving a real language model uses Python, and the Qwen result, which is the headline one, also gets to run the model on up to 50 batches of practice problems.”
Matthew Honnibal
the critique: the Qwen result did not come from reading raw weights
“I think it's best thought of as Astra is surprisingly capable of doing old school mechanistic interpretability research rather than anything spooky.”
Neel Nanda
an interpretability lead reframing the result as skilled but familiar technique
“IF (big IF) Anthropic really is imminently about to meet the RSP threshold of 2x acceleration over baseline, then it seems timelines to full RSI and superintelligence may be very short indeed.”
Daniel Kokotajlo
AI Futures Project's reaction to the S-1 threshold line

The leaderboard

91 models from Artificial Analysis, each effort level its own row, 34 with open weights · 0 boards changed hands since yesterday

Rank by
Score
1
Gemini 4 Carbon (High)NEW
Google · $8.00 / 1M · $7.76 per task · 89 tok/s
60.0index
2
Claude Opus 5.5 (Max)
Anthropic · $8.00 / 1M · $10 per task · 94 tok/s
59.1index
3
Gemini 4 Carbon (Medium)
Google · $8.00 / 1M · $6.59 per task · 92 tok/s
58.3index
4
Claude Opus 5.5 (Xhigh)
Anthropic · $8.00 / 1M · $6.05 per task · 80 tok/s
57.4index
5
GPT-6 Astra (Max)
OpenAI · $20 / 1M · $6.24 per task · 67 tok/s
56.9index

Artificial Analysis leaderboard, read 2026-11-04 01:40 UTC. List price is AA's 3:1 blend of input and output per million tokens (0 / 0 means no hosted price and is left out); $ per task is what AA paid per task to run its index, tokens spent included. est. marks a score AA estimated rather than measured.

Arena Text
what people prefer in a blind test
Gemini 4 Carbon#1
2. Gemini 4 Argon #2 · 3. Claude Opus 5.5 #3
Arena WebDev
building a working front end, judged by people
Claude Opus 5.5#1
2. GPT-6 Astra #2 · 3. Claude Sonnet 5.5 #3
Arena Agent
agent work, judged by people
Claude Opus 5.5#1
2. Gemini 4 Carbon #2 · 3. Claude Sonnet 5.5 #3
AA Intelligence Index
Artificial Analysis' blend of hard evals
Gemini 4 Carbon60.0
2. Claude Opus 5.5 59.1 · 3. GPT-6 Astra 56.9
Vals Index
an independent blend, with cost per test
Claude Sonnet 5.570.8%
2. Gemini 4 Carbon 70.5% · 3. Claude Opus 5.5 70.2%
Terminal-Bench 4.0
agent work in a real shell
Opus 5.564.8%
2. Sonnet 5.5 61.8% · 3. GPT-6 Astra 58.2%
Vals SWE-bench
fixing real GitHub issues
Claude Opus 597.0%
2. DeepSeek V4 Pro 0813 96.4% · 3. GPT-5.6 Sol 96.2%
ARC-AGI-2
puzzles a model cannot have memorised
GPT-6 Astra95.0%
2. GPT-6.1 Sol 94.2% · 3. Claude Opus 5.5 93.3%
SimpleBench
trick questions that catch pattern-matching
Claude Opus 5.588.4%
2. Claude Fable 5.1 86.6% · 3. GPT-6 Astra Pro 86.5%
AA hallucination rate
how often it makes things up (lower is better)
Gemini 4 Carbon11.4%
2. Muse Wonder Full 17.6% · 3. Grok 4.7 20.0%
Cost per task
what one finished task bills (lower is better)
GPT-6 Luna$0.152
2. MiMo-V2.6-Pro $0.257 · 3. Beam 1.0 $0.284
OpenRouter usage
what developers actually run, tokens served this week
DeepSeek-V4.1-Flash54.8T
2. GLM-5.3-Flash 16.4T · 3. Hy4-Preview 9.5T

New on OpenRouter: Crouton Alpha free · Z.ai: GLM 5.3 FlashX Legal $0.37 / $1.25

On your card

The best Ollama models that fit 32 GB · fit is our arithmetic

qwen3.8
4 days ago · 5.7M pulls
vision · tools · thinking27B · Q8_0 ~29 GB
20.1
muse-glimmer
2 months ago · 361.8K pulls
vision · tools · thinking30B · Q6_K ~25 GB
6.3
nemotron-3.5-lightning
2 weeks ago · 394.4K pulls
tools · thinking30B · Q6_K ~25 GB
5.5
mimo-v2.6NEW
9 hours ago · 774 pulls
vision · tools · thinking9B · F16 ~18 GB
not measured
pplx-decider-flashNEW
5 hours ago · 199 pulls
vision · decision4B · F16 ~8 GB
not measured
d3
4 days ago · 40.2K pulls
vision · decision27B · Q8_0 ~29 GB
not measured
lfm3
6 days ago · 42.7K pulls
tools · thinking1.7B · F16 ~3 GB
not measured
lfm3-omni
6 days ago · 28K pulls
vision · tools · audio2B · F16 ~4 GB
not measured
lfm3-vl
6 days ago · 14.1K pulls
vision · tools · thinking2B · F16 ~4 GB
not measured
lfm3-audio
6 days ago · 11.3K pulls
vision · tools · audio2B · F16 ~4 GB
not measured
flint
1 week ago · 50.1K pulls
tools · thinking40B · Q5_K_M ~27 GB
not measured
nemotron-3.5-bolt
1 week ago · 48.4K pulls
vision · tools · thinking · audiono
not measured

From the whole ollama.com/library, read this morning, newest version of each line. Fit is the largest size that fits at ~0.56 GB per billion parameters (Q4_K_M) up to F16, with 2 GB held back for context. A score appears only where Artificial Analysis measured that exact model at that size.

The frontier

A model is on the frontier when no other scores higher on AA's index for the same money or speed.

Against

By list price, cheapest is left and smartest is up.

On the frontier · list priceper 1M
60.0
Gemini 4 Carbon (High)
Google
$8.00
54.6
GPT-6.1 Sol (Max)
OpenAI
$4.00
51.3
GPT-6.1 Terra (Max)
OpenAI
$2.00
36.5
Claude Haiku 5.5 (Max)
Anthropic
$0.20
32.6
DeepSeek V4.1 Flash 1017 (Max)openopen frontier
DeepSeek
$0.53
29.6
Ling 3.1 Flash 1019openopen frontier
InclusionAI
$0.45
29.1
MiniMax-M3.1-Flashopenopen frontier
MiniMax
$0.26
27.8
GLM-5.3-Flashopenopen frontier
Z AI
$0.24
26.7
MiMo-V2.6-Flashopen
Xiaomi
$0.17
5.5
Nemotron 3.5 Lightningopen
NVIDIA
$0.095

Lines: every model (solid) and open weights only (dashed). Hollow points are AA estimates. $ per task counts the tokens a model spends, so it often disagrees with list price. OpenRouter paid is the input price its traffic actually paid, averaged over providers (openrouter.ai/rankings); input only.