Anthropic events

Anthropic says Claude formalized Fermat's Last Theorem in Lean

Anthropic releases Claude Fable 5.1 and Claude Mythos 5.1

Anthropic accounts for its own sandbox escapes

Sony Music and Warner Chappell sue Anthropic over pirated training data

More than a hundred companies sign a call for collective action on cyber defense

A federal judge rules Anthropic's Pentagon blacklist unlawful

Anthropic opens a research preview letting AI agents operate lab hardware

Salesforce and Anthropic launch Claudeforce

Anthropic commits $45 billion to a Nscale campus in West Virginia

Claude's memory becomes shared across chat and Cowork, on by default

Claude designs working protein binders for 14 of 15 lab targets

Claude starts watermarking everything it writes

Claude Code stops asking permission by default

Lab employees ask Washington for a brake they can pull later

Claude finds a new attack that halves a post-quantum signature scheme's strength

Anthropic explains why it does not publish weights

Claude Opus 5 arrives with a million tokens of context

Commerce clears Fable 5 and Anthropic switches it back on

Claude Sonnet 5

Anthropic launches Claude Science, a workbench for researchers

Frontier access starts requiring a background check

Anthropic accuses Alibaba of its largest distillation attack yet

Anthropic puts Claude in Slack as a shared teammate, not a chatbot

Nobel laureate John Jumper leaves Google DeepMind for Anthropic

The United States puts export controls on frontier models

Anthropic ships Mythos 5 and a safer twin

Claude Opus 4.8

Anthropic raises $65 billion at $965 billion

Andrej Karpathy joins Anthropic

Cloudflare points Mythos at its own code

Anthropic ships Claude for Legal

Claude agents get to dream

Anthropic rents Colossus 1, the cluster built to train Grok

Amazon adds $25 billion to its Anthropic position

Claude Design turns prompts into decks and prototypes

Claude Opus 4.7 ships, second to a model nobody can buy

Anthropic starts running other people's agents

Anthropic loses its bid to pause the Pentagon blacklist

Anthropic builds a model it will not sell

Anthropic publishes Claude Code's source by mistake

A misconfigured cache reveals Claude Mythos

Claude gets computer use and a phone remote

Microsoft ships Copilot Cowork and puts Claude in mainline Copilot

Anthropic sues the Pentagon over the supply chain risk label

The Pentagon designates Anthropic a supply chain risk

The administration moves to bar Anthropic from federal work

Amodei refuses the Department of War's terms

Anthropic rewrites its Responsible Scaling Policy

Claude Sonnet 4.6

Anthropic raises $30 billion at $380 billion

Claude Opus 4.6 adds a million-token beta and adaptive reasoning

Anthropic measures what AI help costs a learner

A trademark complaint renames Clawdbot overnight

Anthropic publishes Claude's constitution

Claude Cowork is made to hand over your files

Anthropic puts $1.5 million into the Python Software Foundation

Claude Cowork takes the agent out of the terminal

OpenAI, Anthropic and Block put their agent standards under one roof

Anthropic builds an AI that interviews workers about AI

Anthropic buys Bun

Claude Opus 4.5 cuts the frontier price by two thirds

Microsoft and Nvidia put up to $15 billion into Anthropic

Anthropic reports the first AI-run espionage campaign

Anthropic commits $50 billion to US data centers

AWS activates Project Rainier, a 500,000-chip AI supercomputer

Anthropic ships Claude for Excel

Anthropic ships Claude Code on the web

Anthropic ships Skills

Claude Haiku 4.5 puts five-month-old frontier coding at a third of the price

A few hundred documents can poison a model of any size

Claude Sonnet 4.5 is measured in hours, not tokens

Microsoft adds Anthropic's Claude models to Copilot

Anthropic settles with authors for $1.5 billion

Anthropic raises $13 billion at a $183 billion valuation

Anthropic starts asking consumer users to opt into training

Malware tries to weaponize Claude Code in an npm supply chain attack

Anthropic puts Claude in a Chrome extension for 1,000 testers

Claude Sonnet 4 gets a million tokens of context

Anthropic ships Claude Opus 4.1, an incremental upgrade to Opus 4

The Pentagon puts up to $200 million behind frontier AI labs

A judge rules training Claude on books was fair use, piracy was not

Anthropic finds models from every major lab will blackmail to avoid shutdown

Anthropic ships Claude Gov models for national security customers

Dario Amodei warns AI could wipe out half of entry-level office jobs

Anthropic launches a voice mode for Claude

Claude 4 is sold on how long it can run

Anthropic launches Claude for Education

Anthropic traces how Claude 'thinks' with a new interpretability method

Claude gains the ability to search the web

Anthropic raises $3.5 billion Series E at a $61.5 billion valuation

Claude Code puts an agent in the terminal

Anthropic challenges the public to jailbreak its new safety filter

Anthropic publishes evidence of alignment faking in Claude

Anthropic introduces the Model Context Protocol

Amazon puts another $4 billion into Anthropic

Anthropic, Palantir and AWS sell Claude to defense and intelligence agencies

Anthropic ships Claude desktop apps for Mac and Windows

GitHub Copilot adds Claude and Gemini alongside GPT models

Researcher turns Claude's computer use feature into a botnet client

Claude gets an analysis tool that runs JavaScript in the browser

Claude gets a mouse and keyboard

Claude 3.5 Sonnet beats the flagship at a fifth of the price

Frontier labs sign the Seoul safety commitments

Anthropic maps millions of features inside a frontier model

Anthropic launches the Claude Team plan and an iOS app

Claude 3 takes the top of the benchmarks

Amazon commits up to $4 billion to Anthropic

Claude 2 opens to the public

Anthropic launches Claude

Anthropic launches with $124 million