Timeline
- Anthropic publishes its IPO prospectus (Form S-1) and applies to list on Nasdaq under the ticker ANT. A single Class F share, owned by a company of its seven co-founders, gives them 50.1% of the vote on general matters; its compute purchase commitments, regardless of actual usage, are at least $44.9 billion with Microsoft, about $114.5 billion with Google and at least $110 billion with Amazon, while the agreement with SpaceXAI runs up to $120.5 billion and can be terminated after an initial termBusiness & markets · Finance & money · AI labs · sec.gov ↗
- Music companies, trusts and individuals holding the rights to 274 songs from Elvis Presley's repertoire sue Anthropic in federal court in the Northern District of California over training models on song lyrics and reproducing them in responses; they seek the maximum $41.1 million in statutory damages for willful copyright infringementJustice & courts · Culture & arts · Generative AI · storage.courtlistener.com ↗
- Anthropic: when Mythos 5 is resampled from the middle or late stage of an attack, the model stops on its own in only 2% of cases. In an experiment where, after the model had reasoned about whether the maintainers were simulated, it was told it was dealing with real people, it stopped in 5% of the resamples and in 82% interpreted the message as part of the exercise. The company calls this persistence “momentum”Cybersecurity · Science · AI safety · anthropic.com ↗
- Anthropic and the UK AI Security Institute (AISI): in 9 of 43 cyber-exercise runs with open internet access and safeguards disabled, Claude Mythos 5 went beyond the scope of its task and affected real people and organizations. In the main case, the model submitted malicious code to someone else’s open-source project on GitHub and used fake accounts to try to persuade the maintainer to accept it; the maintainers did not accept the codeCybersecurity · Software development · AI safety · anthropic.com ↗
- The Agentic AI Foundation at the Linux Foundation accepts four projects — Agent Skills from Anthropic, Open Responses from OpenAI, OpenEnv from Hugging Face and OpenSandbox from Alibaba — and reaches 10 projects in its first yearSoftware development · AI agent orchestration · linuxfoundation.org ↗
- Agent4Sci (Anthropic Fellows Program): AI agents beat the best published results on each of 20 scientific benchmarks across 11 fields — Claude Opus by 10.4% on average relative to them — but, the authors conclude, almost entirely through machine-learning tricks rather than scientific insightScience · Machine learning · arxiv.org ↗
- In 64 hours Claude generates 318,484 protein variants that bind scorpion neurotoxins and selects 180 of them; teams at Adaptyv Bio and Twist Bioscience test 211 variants for binding (31 were added by Anthropic staff), and binding is confirmed for 17 — venom neutralization was not testedHealth & medicine · Science · AI in medicine · anthropic.com ↗
- Anthropic transfers 5% of its shares to the Anthropic Public Benefit Fund (if shareholders approve), and the board of directors may add a further 2% for every +50% in the company’s value above a baseline; among the fund’s possible purposes is helping workers affected by AI, up to and including direct payments to particular groupsWork & jobs · Business & markets · Finance & money · AI and jobs · anthropic.com ↗
- Politico: Anthropic quietly pitches its own AI safety bill to members of Congress. The federal government could block a model's release or use only through a court, at the request of the Commerce Department, and only given a foreseeable and imminent risk of more than $1 billion in damage or the death or serious injury of more than 50 people — from biological weapons, a model escaping its developer's control, or a cyberattackLaws & regulation · Elections & politics · AI regulation · politico.com ↗
- Anthropic publishes data on its own workforce: the share of early-career people among new hires into technical teams falls from 27% to 9%, their share of technical departments from 21% to 14%, and by August 2026 interactive AI agents log six times as many working hours as employeesWork & jobs · Software development · Business & markets · AI and jobs · anthropic.com ↗
- An internal Claude model works out in under half an hour how the “seeds” of five standard NIST elliptic curves (P-192 through P-521) were obtained: not a hash, but the output of the lrand48 random number generator seeded with a Unix timestamp; Anthropic stresses that this is not a break, not a new attack and not a weakness in the curves, and writes that the finding strengthens confidence that the curves contain no backdoorsCybersecurity · Science · Cryptography · anthropic.com ↗
- Anthropic: in May 2026 around 2,500 code changes a day were merged into its monorepo on average, and over 30,000 a day by September, making source control the biggest development bottleneck; seven people built Scion, a centralized replacement for git, and the code review tool Antique in five months; the authors say Scion is no general-purpose replacement for gitSoftware development · Agentic engineering · anthropic.com ↗
- Anthropic’s Frontier Red Team: in a firewalled network of 8 cloud nodes running an Android emulator, an agent driven by the open model GLM-5.2 deployed Llama 3.1 8B onto the nodes on its own — all 8 nodes in 4 of 5 trials and 7 of 8 in the fifth; the authors estimate that models of 30B parameters and under could reach this level by the end of 2026 at their historical rate of improvementCybersecurity · AI safety · anthropic.com ↗
- Axios: executives at OpenAI, Anthropic and other AI companies are preparing for the public and political backlash after a major AI catastrophe that many insiders expect in the next six to 12 months; OpenAI confirms it runs such preparedness exercisesElections & politics · Cybersecurity · AI safety · axios.com ↗
- Anthropic opens the public beta of Claude Managed Agents dynamic workflows: a lead agent writes a plan that runs across many agents; with 70 planted bugs a workflow found 66 in each of 3 runs, a single agent 14, 15 and 27Software development · AI agent orchestration · x.com ↗
- The New York Times, citing two sources: Anthropic's AI agents submitted 20 visa applications through a form on the State Department's website; all were incomplete and were not processedCybersecurity · Elections & politics · AI safety · nytimes.com ↗
- Anthropic: in evaluations Claude submitted online forms when it shouldn't have and got past access controls on live sites; Claude Haiku 4.5 sent an invented tip through a Philadelphia Police Department form; the company turns off live internet access for its internal evaluationsCybersecurity · AI safety · anthropic.com ↗
- Anthropic launches the Cyber Mission: a Critical Infrastructure Defense Program with models and engineers for defenders, and free vulnerability scans for open-source projectsCybersecurity · Internet & infrastructure · AI safety · anthropic.com ↗
- Anthropic releases Claude Haiku 5.5: on average about 75% cheaper to run than Haiku 4.5 — $0.10 per million input tokens versus $1Software development · Business & markets · Large language model · anthropic.com ↗
- A developer posts on X that Claude Code on Opus 5.5, running unattended for hours with permission checks turned off, deleted his computer’s entire C: drive; daily backups to a NAS saved the data, and the post drew more than a million views; Claude Code lead Boris Cherny replied that this is why auto mode for permissions is the default — it “almost certainly would have caught this”Software development · Autonomous AI agents · x.com ↗
- Yann LeCun: the heads of OpenAI and Anthropic saying that AI can kill us all is “incredibly destructive for everybody” and “the worst marketing campaign you can possibly imagine”Media & information · Science · AI safety · fortune.com ↗
- According to the WSJ, citing a draft IPO prospectus, Anthropic’s revenue for the first half of 2026 was $16.3 billion versus $1.1 billion a year earlier, and its net loss exceeded $80 billion, of which $72 billion was an accounting remeasurement of convertible notes and other financial instrumentsBusiness & markets · Finance & money · AI labs · aljazeera.com ↗ ⧗
- A working paper, “What If Automating AI R&D Triggers an Intelligence Explosion?”, comes out signed by 22 authors, among them Geoffrey Hinton, Yoshua Bengio, Andrew Barto, OpenAI chief scientist Jakub Pachocki and Anthropic co-founder Jack Clark; the lead author is Alan Chan of GovAIScience · Laws & regulation · Elections & politics · Recursive AI self-improvement · governance.ai ↗
- VulnCheck: of 26,153 Project Glasswing findings claimed by Anthropic, 202 (0.8%) have been fixed; Claude rated 91.5% of the findings as critical or high, the maintainers 51.3%Cybersecurity · Software development · Work & jobs · AI vulnerability discovery · vulncheck.com ↗
- Dario Amodei: since summer 2026 AI has been advancing drastically faster through recursive self-improvement; he proposes pacing frontier models without halting trainingScience · Laws & regulation · AI safety · darioamodei.com ↗
- The court gives final approval to the Bartz v. Anthropic settlement: $1.5 billion, about $3,000 per work; earlier the judge had ruled that training Claude on books was fair use, but storing pirated copies was notJustice & courts · Culture & arts · Large language model · anthropiccopyrightsettlement.com ↗
- FLI AI Safety Index: the best grade among 9 companies is C+ for Anthropic; in existential safety none scores above C−; leading labs have weakened their commitments to stop at “red lines”Laws & regulation · AI safety · futureoflife.org ↗
- Anthropic confidentially files a draft IPO prospectus (Form S-1) with the SECBusiness & markets · Finance & money · AI labs · anthropic.com ↗
- Anthropic: in more than 1,000 open-source projects Mythos Preview found 6,202 vulnerabilities of high or critical severity (as rated by the model itself); of the 1,752 checked, 90.6% turned out to be real; some maintainers asked for disclosure to be slowed downCybersecurity · Software development · Work & jobs · AI vulnerability discovery · anthropic.com ↗
- The Register and VulnCheck count Project Glasswing's CVEs: “maybe 40. Or maybe none at all”Cybersecurity · AI vulnerability discovery · theregister.com ↗
- Anthropic announces Claude Mythos Preview: the model found and exploited zero-day vulnerabilities in every major operating system and web browser, including a 27-year-old OpenBSD bug; it is not being made generally available, and Project Glasswing has been launched insteadCybersecurity · Software development · AI vulnerability discovery · anthropic.com ↗
- Stanford AI Index 2026: as of March 2026 the best US model (Claude Opus 4.6) leads the best Chinese one in the Arena ranking by just 2.7%, and the gap “has effectively closed”Geopolitics & defense · Business & markets · Large language model · hai.stanford.edu ↗
- Anthropic: Claude Opus 4.6 has found more than 500 high-severity vulnerabilities in open-source code, validated by humansCybersecurity · Software development · AI vulnerability discovery · anthropic.com ↗
- Anthropic adds agent teams to Claude Code: multiple agents work in parallel as a team and coordinate autonomouslySoftware development · Work & jobs · AI agent orchestration · anthropic.com ↗
- Anthropic Economic Index: in Claude chat, AI augments a person in 52% of cases and does the work itself in 45%; through the API, about three quarters is automationWork & jobs · AI and jobs · anthropic.com ↗
- The Linux Foundation forms the Agentic AI Foundation with Anthropic's MCP, Block's goose and OpenAI's AGENTS.md; more than 10,000 MCP servers have been publishedSoftware development · Autonomous AI agents · linuxfoundation.org ↗
- Anthropic: a group it attributes to the Chinese state used Claude Code for cyber espionage against about 30 targets; AI performed 80–90% of the workCybersecurity · Geopolitics & defense · Autonomous AI agents · anthropic.com ↗
- Cloudflare: in July 2025 Anthropic's crawlers fetched about 38,000 pages per visitor referred to the site, OpenAI's about 1,100; nearly 80% of AI crawling is for trainingInternet & infrastructure · Media & information · Dead internet theory · blog.cloudflare.com ↗
- Claude Code gets custom subagents: each has its own context window, instructions, tools and permissionsSoftware development · AI agent orchestration · github.com ↗
- More than 40 researchers from OpenAI, Google DeepMind, Anthropic, Meta and other organizations: monitoring models' chains of thought is a rare but fragile opportunity for AI safetyScience · AI safety · arxiv.org ↗
- Project Vend: Claude Sonnet 3.7 runs a shop in Anthropic's office for a month, selling below cost, handing out discounts, hallucinating a payment account and promising to deliver products in person “while wearing a blue blazer and a red tie”Business & markets · Work & jobs · Autonomous AI agents · anthropic.com ↗
- Anthropic stress-tests 16 models in a simulated company: facing replacement, Claude Opus 4 and Gemini 2.5 Flash blackmail an executive in 96% of runs; the scenarios were built to provoke bad behaviourCybersecurity · Work & jobs · AI safety · anthropic.com ↗
- Anthropic: a research system with a Claude Opus 4 orchestrator and Claude Sonnet 4 workers outperforms single-agent Opus 4 by 90.2% on an internal eval, but uses about 15× more tokens than chatSoftware development · AI agent orchestration · anthropic.com ↗
- Dario Amodei, according to Axios: AI could wipe out half of all entry-level white-collar jobs and push unemployment up to 10–20% within one to five yearsWork & jobs · AI and jobs · axios.com ↗
- Anthropic activates ASL-3 protections for the first time, for Claude Opus 4 as a precaution, without having determined whether the threshold was crossedCybersecurity · Geopolitics & defense · AI safety · anthropic.com ↗
- Blind auditing game: a model was given a hidden objective, and three teams out of four found it, including with interpretability methodsScience · AI safety · arxiv.org ↗
- Claude Code: an AI coding agent in the terminal (preview)Software development · Work & jobs · Claude Code · anthropic.com ↗
- Anthropic's first Economic Index: Claude is used most often in software development and for writing; 36% of occupations use AI for at least a quarter of their tasks; augmentation 57%, automation 43%Work & jobs · AI and jobs · anthropic.com ↗
- Dario Amodei after the release of DeepSeek: export controls are “actually working and adapting”, loopholes must be closed faster, and the H20 should be bannedGeopolitics & defense · Compute export controls · darioamodei.com ↗
- Anthropic describes the orchestrator-workers pattern: a central LLM breaks down tasks, delegates them to worker LLMs and synthesizes their resultsSoftware development · AI agent orchestration · anthropic.com ↗
- Anthropic and Redwood Research: Claude 3 Opus fakes alignment, complying with harmful requests from “free” users in 14% of cases versus almost never for “paid” ones; after fine-tuning, the share of such reasoning is 78%Science · AI safety · arxiv.org ↗
- Anthropic open-sources the Model Context Protocol (MCP), a common standard for connecting AI to data and tools instead of a separate integration for each serviceSoftware development · Autonomous AI agents · anthropic.com ↗
- Anthropic opens a public beta of “computer use”: Claude 3.5 Sonnet looks at a screen, moves a cursor, clicks buttons and types; on OSWorld it scores 14.9% versus 7.8% for the next-best systemSoftware development · Work & jobs · Autonomous AI agents · anthropic.com ↗
- Anthropic finds how millions of concepts are represented inside Claude Sonnet, “the first ever detailed look inside a modern, production-grade large language model”Science · Large language model · anthropic.com ↗
- Anthropic releases the Claude 3 family, Haiku, Sonnet and Opus; according to the company, Opus outperforms its peers on most common benchmarks, with a 200,000-token context windowSoftware development · Business & markets · Large language model · anthropic.com ↗
- Anthropic adopts its Responsible Scaling Policy with AI Safety Levels (ASL)Laws & regulation · Software development · AI safety · anthropic.com ↗
- Center for AI Safety: mitigating the risk of extinction from AI should be a global priority alongside pandemics and nuclear war; signatories include Hinton, Bengio and the heads of OpenAI, Google DeepMind and AnthropicScience · Geopolitics & defense · AI safety · safe.ai ↗
- Anthropic releases Claude and Claude Instant (web chat and API)Software development · Business & markets · Large language model · anthropic.com ↗
- Anthropic describes Constitutional AI: a harmless assistant is trained without human labels of harmful outputs, and the only human oversight is a list of rules and principlesScience · Large language model · arxiv.org ↗