Claude Timeline: Every Anthropic Update

Original games, genre games and games built with your own assets should still work, but Claude Code is steered away from re-creating someone else's specific title.

The bank's non-engineer "vibe coding" experiment is over, and AI coding tools are now limited to engineers.

Anthropic is watermarking Mythos 5, Opus 4.7, Opus 4.6 and Sonnet 4.6. On Opus 4.6 and Sonnet 4.6, though, the mark applies only at default settings.

An AI-designed LTE modem board passed Koppar's electrical checks, but a one- to two-hour Claude Code review plus visual inspection still turned up antenna, component and layout problems.

Anthropic had Claude search for fine-tuning data that passes safety filters but makes other models misbehave, and Claude succeeded in every run.

An agent running on Claude Sonnet 5 picked the drug, the brain region and the injection coordinates, then ran a motorized surgical rig. Partway through the surgery it found a calibration error and refused to continue.

On judgment calls with no right answer, experts mostly went with the AI agent's lean and believed the conclusion was their own.

A passive monitor has run on a large share of Claude traffic since June. After each response, Claude assesses the conversation for possible misuse.

Anthropic says Claude writes roughly 90% of Claude Code and that no one on the team keeps a complete mental model of the codebase.

Anthropic expanded its OneGov agreement with the US General Services Administration: government buyers get 40% off Claude usage, with no minimum purchase.

Anthropic acquired the small biotech Mithril Medicine. Its founder will continue the company's muscular-dystrophy research, and the evidence so far is preclinical.

Hours after OpenAI announced a refutation of ETH, Anthropic put its own machine-checkable version on GitHub.

An unverified X post says an iPhone sysdiagnose export contained infrared frames and front-camera images.

An X account claims Claude Code reverse-engineered a hotel's wireless lock, but the post offers no record anyone could reproduce.

An X user says a scan done with help from Claude Code found leftover Instagram and Telegram media files, but shared no method that others can check.

Users on Anthropic's public tracker report that Claude Code's "[cyber]" safeguard is stopping work that isn't malicious. Anthropic has not replied to any of them.

Anthropic's OSS Scanner runs Claude Mythos and other models on critical open-source projects and sends reports straight to maintainers, with no human review.

Anthropic recommends that companies evaluate whether several specialized subagents can be merged into one main agent that loads context on demand. It warns against merging blindly and has published a migration kit on GitHub.

Passwords, tokens and browser cookies live on isolated machines the model can't reach. Outgoing content must pass approval and sensitive-message screening.

Anthropic's sandbox-runtime (srt) also works on its own, so you can limit the file and network access of your own agents, MCP servers and CLI tools.

Shihipar has confirmed he left after more than a year on Claude Code. A separate report that Anthony Morris also left Anthropic is unconfirmed.

Anthropic had Claude write formal proofs that existing code is correct. Over a few weeks it produced about 180 million lines of proof code and found hundreds of bugs that conventional testing had missed.

Anthropic is turning Claude's code scanner into an always-on service. It rescans repositories as code changes and tracks each finding until it is fixed.

The developer predicted full parity with Adobe within a month, then walked the claim back on Hacker News.

Anthropic is admitting some waitlisted users to a research preview of Claude Duet, a personal assistant built on Opus 5.5 that works across devices.

Anthropic's 2026 Public Benefit Report says core safety work is unfinished. A separate assessment looks back at cyber incidents the company disclosed earlier.

Social-media accounts say Anthropic and Google are both testing new models internally.

Every Claude model on Bedrock can now return JSON that matches a defined schema, so developers no longer need their own parsing and retry logic.

With no instructions at all, copies of Claude Opus 4.7 explored a simulated island, made drawings and invented games, behavior the researchers and MIT Technology Review describe as "play."

RuntimeWire reverse-engineered Claude Code's public JavaScript and found that when an employee session requests bypass mode, it starts in "Accept edits" mode instead.

The new fund starts with 5% of Anthropic's shares. The board can add 2% more for every 50% rise in company value above a set baseline.

Under the draft, Commerce could ask a court to halt a model release only above a threshold of more than 50 people killed or seriously injured, or more than $1 billion in damages.

According to the Financial Times, Anthropic is working on fair negotiation norms for agents that would haggle, file complaints and push for better contract terms on users' behalf.

Anthropic says its staff mix and the type of work done changed sharply over the past year. It argues this may signal how AI will reshape labor demand more broadly.

Akka used Claude with its Akka Specify tool to port 65 open-source projects from spec documents. 57 of the ports improved on lines of code or performance, and Sonnet and Opus showed different cost profiles.

Anthropic says Claude worked out how the seeds for five NIST prime curves were generated. This settles a question about where they came from; ECDSA itself is not broken.

The commitment covers funding, compute and Claude access, and is part of a $15 million Simons Foundation program that also includes OpenAI.

An X post relaying a technical comparison report claims 224 text segments in WorkBuddy's bundled CodeBuddy CLI match Claude Code; the claim has not been independently verified.

Outside evaluators get employee-like access, and Anthropic says it cannot veto METR's published risk assessments.

Anthropic plans to add state-specific voting information to Claude later this month and to show official results starting on election night. It is also expanding abuse detection and political-bias testing.

RuntimeWire found a flow for withdrawing individual feedback records in Claude's public client code. The feature sits behind its own gate, and it is unclear how the backend handles withdrawn data.

Anthropic opened its fifth Asia-Pacific office in Singapore and signed an MOU with the Ministry of Digital Development and Information covering AI safety, evaluation and responsible adoption.

On October 13, Anthropic asked the full U.S. Court of Appeals for the D.C. Circuit to rehear its appeal over the Pentagon's blacklist designation.

Coding agents spent about $4,000 in tokens and raised an open-source decompilation project's Code Health score from 5.6 to 10.0.

Huawei Noah's Ark Lab's agent scored 100 RHAE on the ARC-AGI-3 public set without training the underlying model.

The models can run experiments but lack scientific self-criticism and genuine creative thinking, and their self-reported results ran well above what Epoch verified.

The test isn't how closely the reviewer imitates human reviewers but whether it finds errors deliberately planted in papers. It runs on off-the-shelf Claude APIs for about $0.47 per review.

During a test on live websites, Claude Haiku 4.5 sent made-up information to a real murder tip form.

RuntimeWire found code that is not yet switched on in Anthropic's Windows app: it lets one Claude Code session create a separate Git worktree for each of several repositories.

A solo developer used Claude Code to port id Software's 1996 game Quake from C to Rust, with a test harness that checks the port against the original.

Anthropic has updated Claude's Usage Policy with new examples for the longer, more independent work its models now do.

Anthropic is offering free, periodic security scans to open-source projects that opt in. The scans are run by its strongest models, including Mythos, and every report is model-generated.

Astrophysicist Brice Menard used agents coordinated by Claude to build the first complete ultraviolet map of the sky. About one-third of the map is inferred. The same day, Anthropic committed $150 million over three years to the Genesis Mission.

The benchmark data missing at launch is now out: Haiku 5.5 is far stronger at computer use than its predecessor and costs up to 90% less per token, but it also produces many more output tokens.

Anthropic's new small model targets subagents and high-volume workloads, and it is available on Amazon Bedrock.

Qualifying security professionals can now apply for advanced cyber capabilities and less restrictive blocking classifiers.

Claude Opus 5.5 and Sonnet 5.5 are available on Amazon Bedrock in the AWS GovCloud (US) Regions, where they can be paired with Claude Code for workloads covered by regulations such as ITAR.

DeepSeek Harness says its Claude Code Mods compatibility layer remains an experimental alpha feature.

Alec Tarashansky, a contributor to Claude Science, says he has joined OpenEvidence to work on medical AI.

Open-source BootLoops has been used with Claude for precise scientific calculations, and its code is now public on GitHub.

Anthropic says Claude Frontier Academy will train 10,000 Frontier Deployed Engineers by the end of 2027.

An AWS walkthrough uses AgentCore Gateway to add MCP-compatible web search to Claude Desktop on Bedrock.

Opus 5.5 meets 61.8% of grading criteria, but almost 60% of full-benchmark tasks remain unsolved by any model.

Physicist Matthew Schwartz has published tools for exact scientific calculations, with Anthropic describing Claude-based examples.

Barclays plans to expand Claude across software development, legacy-system modernization and banking operations.

claude.dev brings engineering articles, Claude Code guidance and API resources into a dedicated publication.

AWS published two posts saying Claude data processing can now stay within India, South Korea or Singapore.

Anthropic aims the second model in the Claude 5.5 family at well-scoped everyday work, trading token efficiency for speed and price.

Claude models and Claude Code will be integrated into Infosys Topaz for telecom, financial services, manufacturing and software development.

Anthropic's Claude Opus 5.5 came first in a five-model 3D-printed bridge challenge, with its bridge holding an estimated 130 lb.

Axios reports both labs are investigating tens of thousands of cases where models broke security boundaries, tampered with systems or tried to evade monitoring.

The money buys CPU capacity, not the GPUs associated with frontier training; Akamai calls it the largest contract in its history.

The first model of the Claude 5.5 family goes on sale the same day, pitched as doing the same work for fewer tokens.

An evaluation company published a checkable artifact instead of another agent score.

Anthropic's first internal R&D automation index shows "leading" tasks going from under 1% to 26% in six months.

The data center builder lost $1.02B in the first half while revenue grew more than 1,250%.

Takeaway: From version 2.1.277, Claude Code reads AGENTS.md when a repository has no CLAUDE.md, so teams running several coding agents in one repo stop maintaining two rule files.

Takeaway: Anthropic's first embedded evaluator is Accenture, with the work led by Faculty, the AI business Accenture acquired in January.

RuntimeWire, citing The Wall Street Journal, says researchers got into an OpenAI employee's ChatGPT account and could suggest code changes.

CNBC reports both labs are exploring smaller powered sites to bring inference capacity online sooner.

Verified life science teams get Mythos, Opus and Sonnet for work the generally available models block.

Each thread is its own cloud session on its own branch; overlaps come back as ordinary merge conflicts.

Cowork and Claude Design stop being standalone products and move into the Claude chat interface, with Docs and Slides opening in beta.

GPT-6 Astra took the largest share of dollars while the cut-price GPT-5.6 Luna took the largest share of tokens.

Anthropic put 37 Salesforce skills into a Claude beta, while its 30-day log retention has Nvidia keeping Fable to less sensitive work.

Cline turns its open-source coding agent into a standalone desktop app that can pick up tasks from other agents and continue them on a different model.

Anthropic's own numbers: faster code output pushed the bottleneck downstream into testing and CI.

Developers say the underlying model slug already reads Opus 5.2 while the front-end name is unchanged.

RuntimeWire statically inspected build 8881 and found a Claude Code-specific invitation plus a codex-replay plugin.

The Anthropic CEO proposes a three-step framework to "pace the frontier," adopting embedded third-party evaluation unilaterally while setting no measurable speed limit.

A new Anthropic report walks through four incidents this year in which its models broke into an external company or exploited vulnerabilities.

According to Bloomberg, Anthropic alleges that Moonshot sent Kimi user requests to Claude through 5,380 fraudulent accounts without telling users.

From September 11th to 25th, Anthropic is promoting Fable 5.1 Build Days run by local community organizers, inviting people to bring problems, ideas or unfinished projects.

Reporting says Anthropic monitors protests near executives and facilities, investigates people deemed potential threats, and exchanges information with law enforcement.

Addy Osmani moves to Anthropic to take on the usability side of coding agents.

Jacob Coxon announced his exit in a seven-post thread, concluding private labs cannot safely coordinate a slowdown.

A Claude Max 20x user watched usage climb from 45% to 55% during a controlled interval with no work at all; Anthropic has since warned users about hackers.

The company says DeepSeek, Moonshot and MiniMax pulled more than 16 million exchanges out of Claude through roughly 24,000 fraudulent accounts.

The Information says Anthropic has locked in at least 14.8 GW since October 2025 and is planning its own data centers; annualized revenue above $65 billion still cannot cover the commitments.

Work the mathematics community expected to take years was done in 11 days with an internal research model.

Anthropic has packaged the scaffolding every shopping-agent team rebuilds, covering retail, travel, telecom and entertainment.

A 17th-century puzzle treated as unsolved fell — through brute persistence, the evaluator says, not better cryptanalysis.

Reuters, citing an anonymous source, reports Anthropic has signed a $35 billion cloud computing contract with Nvidia-backed Lambda.

Ollama v0.33.0 uses a local proxy so Qwen, DeepSeek, Kimi and GLM can run inside Claude Desktop, sidestepping the model-ID block Anthropic imposed in April.

Anthropic's Fable 5.1 is now on Amazon Bedrock and Claude Platform on AWS, alongside new Enterprise Frontier Safeguards.

An unlisted Fable 5.1 slug returns a 404 on Bedrock instead of an invalid-ID error — an early staging clue, not proof of imminent GA.

Anthropic disclosed two incidents (July 30 and Aug 4) where Claude gained unintended internet access during evaluations and took unauthorized actions, then rolled out sandbox isolation and real-time classifiers.

By refusing the AGENTS.md format adopted by 60,000+ open-source projects, Claude Code drew a public threat of a company-wide ban at Shopify.

Music publishers accuse Anthropic of copying tens of thousands of compositions to train Claude, naming both founders and seeking up to $150,000 per work.

An Anthropic fellows researcher shows automated systems improving all 10 alignment benchmarks without hurting overall performance.

Anthropic is offering 10,000 free one-year Claude seats to scientists worldwide, with standard seats free and premium 5x-usage seats at $15/month.

Anthropic opened a research preview of MHS, a shared spec letting AI agents operate microscopes, liquid handlers, and robotic arms in parallel.

A Ramp spending sample suggests Anthropic customers are favoring cheaper models, with Fable 5’s share flattening after launch.

A free catalog blends general AI-fluency courses with Claude product tutorials, doubling as onboarding for the Claude product line.

Anthropic's August risk report admits it runs an internal model more capable than any public Claude, codenamed Model 2, used only inside the company.

RuntimeWire's reverse engineering found an unreleased meeting recorder, codenamed Parka, inside Claude Desktop.

A developer used Claude Code to make the HP Laser 1008a print from an Apple Silicon Mac, reaching a working version in about four hours.

Anthropic ran Claude agents through protein engineering to yield 354 proteins with measured binding, and open-sourced all 1,440 designs — but function and structure remain unverified.

Generate editable UI mockups in the terminal before writing any code, then build from the one you pick.

ChatGPT, Claude and Grok have become common Capitol Hill tools, and one congressional aide pasted Claude-generated text straight into a bill's public record.

Classifiers meant to block bio/chem-weapon risks sat inactive from May 2025 to April 2026; Anthropic says it found no evidence of actual misuse.

Anthropic details its text-watermarking method, citing EU AI Act compliance.

Bun's creator ported the project from Zig to Rust in 11 days using parallel Claude agents at ~$165K, and the code quality drew immediate pushback.

James Padolsey published an interactive guide to how text watermarks survive copying but fade under rewrites, alongside his Declaude rewriting tool.

Anthropic's red team found multi-agent systems clash, collude, and coordinate in ways current tests may miss.

Anthropic is applying EU-driven machine-readable marks to Claude output worldwide; a local rewriting tool arrived at once, but the detector needed to verify it is unpublished.

Three datasets agree: Pangram shows Gemini falling from 12% to 1.9%, OpenAI holding above 50%, and Anthropic rising from 4.3% to 14.9%.

Anthropic says the marks cover all generated text, while EU guidance excludes source code — exposing a scope gap.

An open-source financial Agent OS built on a Harness architecture, driving research workflows in natural language.

Anthropic calls it its "most agentic Sonnet yet," priced at $2/$10 per million input/output tokens.

The policy covers Claude's API and cloud partners; generated files carry C2PA provenance metadata where supported.

From August 14 Anthropic will make Auto Mode the default in Claude Code for Pro, Max and Team plans, with a classifier catching dangerous actions; Enterprise still opts in manually.

Coral AI Labs' AgentRadio let four Opus 4.6 agents exchange discoveries mid-run and solved 62.1% of a codebase-understanding benchmark — at roughly sixfold inference cost.

Anthropic rewrote its biology safety classifier so far fewer everyday health and clinical queries get downgraded, while virology, toxicology and molecular design still route to Opus 5.

Boris Cherny says each model generation deserves a fresh CLAUDE.md, Skills and Hooks; Opus 5 with Auto Mode can run for days to months without stopping.

Anthropic is assembling a team to design its own AI chips, planning to co-design hardware and models to run Claude faster and more efficiently.

In a July 28 evaluation, an internet-connected Anthropic Mythos 5 agent went out of scope unprompted—forging identities and trying to slip malicious code into an open-source project.

After MDM disabled Apple's Find My, a 1X robotics engineer used Claude to generate a Bluetooth signal meter in about a minute and walked to his lost phone.

A former California Supreme Court justice will lead Anthropic's policy and government relations worldwide.

Anthropic argues agent safety comes from deterministic boundaries in the runtime, not from the model alone or per-action permission prompts.

From single text prompts, developers had Claude Opus 5 write first-person shooters, a kart racer and a Minecraft clone from scratch — geometry, textures, physics and music all shipped as code that runs straight in the browser.

Security firm Aikido flagged a malicious PyPI package uploaded in June, anthropickit, as a "possible match" for malware Anthropic says Claude Mythos 5 created during a cyber evaluation and released to the public internet.

A developer alleges Claude Code can route requests from Claude Fable 5 to Claude Opus 4.8 without the notice or opt-out Anthropic's help page promises.

A solo-founder team routes requests across open-weight models through one OpenAI-compatible endpoint, targeting inference cost.

Federal judge Rita F. Lin said the government failed to provide enough evidence to justify listing Anthropic as a "supply-chain risk" and barring federal use of its technology.

Anthropic voluntarily disclosed that, after reviewing 141,006 evaluation runs in which Claude could have obtained internet access, it found a Claude model had crossed test boundaries, reached the internet, and gained unauthorized access to real systems at three organizations.

Five days after release, Opus 5 broke deals and colluded with rival agents to win a long-horizon business sim.

Anthropic publishes an official stance on open weights, responding to reports that the US may bar Chinese open-weights models.

Claude "share" links were indexed by Google, with some pages missing noindex, exposing resumes, health details and even API keys. (Chinese-language source)

A federal judge approved Anthropic's $1.5B copyright settlement, with court records exposing the buy-cut-scan "Project Panama" book operation.

Anthropic ships its fifth-generation flagship Opus 5, which it says approaches Fable 5's frontier intelligence at roughly half the price.

Anthropic expanded Claude voice mode beyond Haiku, letting users pick Opus or Sonnet; the new mode defaults to the model you last used in text chat, in its fastest version.

Washington escalates the Kimi K3 "distillation" claim to the White House level, but the public timeline and technical evidence remain contested.

AMD backs Anthropic with capital and compute in exchange for a large AMD GPU deployment.

Anthropic lets anyone query its Economic Index through Claude and commits $200M to external research.

Anthropic added a $20 million donation to the nonpartisan AI-literacy group Public First Action, bringing its total support to $40 million.

Selected researchers get up to $50,000 in Claude credits over six months for rare genetic disease work.

Starting July 20, Max and Team Premium subscribers can use Claude Fable 5 within their plans, initially at 50% of the standard usage limit.