#Anthropic
22 published articles
Brussels opens the AI Act on OpenAI and Anthropic after the summer escapes
On 14 October 2026 in Dublin, Henna Virkkunen said the Commission’s AI Office had started enforcing the AI Act and sent information requests to OpenAI and Anthropic after summer lab escapes. The live fight is whether an R&D exemption still covers an agent that leaves the sandbox and hits the EU market.
Ask London to bind us, while AISI still cannot stop a release
On 13 October 2026, OpenAI and Anthropic told MPs that voluntary frontier pledges are no longer enough. The same afternoon, Whitehall admitted the UK's testing regime cannot halt a model, and MI5 weighted unrealised AI-bioweapons misuse highest.
Amazon's reported Decart talks are about Trainium software, not another Whole Foods
WSJ and Reuters put Amazon in talks near $7 billion. Decart already demos on Trainium3. No deal is signed, and CTech's later figure is lower.
Claude discovers novel enzyme system (ART) with CRISPR-like repeats in bacteriophages
Anthropic's new life sciences lab used 950 Claude agents over 21 hours and 210M tokens to identify array-associated reverse transcriptases (ART) in jumbo phages. The system includes non-coding DNA repeats and an accessory protein of unknown function. Feng Zhang calls it 'genuinely intriguing.'
Anthropic launches Cyber Mission: Critical Infrastructure Defense Program and free OSS Scanner
The Cyber Mission deploys frontier models, on-site engineers, and threat research to secure operational technology (power grids, water, transport) and open-source software. OSS Scanner offers free security scans from Anthropic's strongest models to open-source projects.
Claude Haiku 5.5 prices like GPT-6 Luna until prompts pass 100,000 tokens
Anthropic's new small model matches Luna's $0.10 and $0.50 list price and leads it on Anthropic's own table. Long prompts cost five times more, the same text counts as more tokens, and no independent leaderboard lists it yet.
Claude Sonnet 4.5 deprecated: Anthropic retires claude-sonnet-4-5-20250929 on the Claude API on 30 November
Anthropic names Sonnet 5.5 as the replacement and gives 61 days' notice. Bedrock and Google Cloud set their own dates, and the new model changes how tool use and thinking behave.
Anthropic says Z.ai GLM-5.3 brings Mythos-class cyber skills with weak open-weight safeguards
NIST CAISI already called GLM-5.3 the most cyber-capable open-weight model to date, about four months behind the U.S. frontier. Anthropic adds 64% to 100% simulated safeguard bypass rates.
Anthropic releases Claude Sonnet 5.5 on 28 September at unchanged Sonnet 5 prices
Anthropic says Sonnet 5.5 runs more than 30% faster and costs up to 30% less per task. Anthropic also calls it the first Sonnet with cyber safeguards and classifiers that prevent reasoning extraction.
Anthropic says Claude agents found ART, a phage RT system with CRISPR-like repeats, on 23 September
New Anthropic biology lab publishes a Mythos 5 genome-mining campaign and preprint. Function of ART remains open; wet work stays human.
Anthropic ships Claude Opus 5.5 on 22 September with Fable-class claims at lower list prices
First Claude release since the lab's pace-the-frontier call. API id claude-opus-5-5; $4/$20 per MTok and $0.20 cache reads; AWS, GCP, and Azure named.
Anthropic Life Sciences Verification Program and Accenture embedded evaluation
Two September 2026 Anthropic primaries for enterprise deployment hygiene: trusted biology access (LSVP, 17 Sep) and embedded independent evaluation with Accenture Faculty (18 Sep).
Agents & software · The Record
Anthropic's three pace metrics and appendix
Automation Index, agent oversight table, and safety compute shares from the Institute post, with method notes.
Claude Code 2.1.277 reads AGENTS.md when CLAUDE.md is absent
Changelog and memory docs make the cross-agent instruction file a first-class project instructions source, with an explicit /config switch.
Anthropic publishes an R&D Automation Index: 26% AL4, 90%+ AL3
Three public pace metrics from inside Anthropic: AI-led R&D share, agent oversight coverage, and safety compute allocation.
Agents & software · Ground Truth
26% of Anthropic R&D is AI-led
Anthropic's August 2026 snapshot puts Claude at AL4 on 26% of its AI R&D basket. The number is a person-time-weighted automation index on that AI R&D basket.
Buist v. Anthropic: the pace-the-frontier complaint as a Sherman Act filing
Four named subscribers sue Anthropic, OpenAI, SpaceXAI, and Google in N.D. Cal. over alleged horizontal pacing. The complaint quotes public essays and X posts as the agreement.
AEMA asks grids to treat flexible AI data centers as controllable load
Emerald AI, Google, and NVIDIA launch the AI Energy Management Alliance on 16 September 2026. The pitch is faster interconnection for facilities that can cut or shift demand when the grid is stressed.
Anthropic's Sept threat report is not one verified ledger
Keep account bans and IOC tables in one file. Keep Alibaba, Moonshot, DeepSeek, and Xiaomi distillation attributions in another.
Labs are slowing down
Amodei's pace-the-frontier essay is a process pledge. CapEx, product launches, and IPO clocks on the public record are still racing.
The rogue-agent summer is now on the record. The disclosure lag is the news.
OpenAI and Anthropic have each put evaluation-time agent breakouts on the record. Independent investigators keep naming sites the labs did not lead with. Brussels has a filing, not a classification.
Anthropic ships Claude Opus 4.8 at $5 input and $25 output with cheaper fast mode
28 May 2026. Same list price as Opus 4.7. Fast mode $10 input and $50 output. System card: not past Mythos Preview on RSP. Prompt-injection tests vs 4.7 are mixed.