Releases

Anthropic's first Claude Corps cohort begins Foundations training on October 19, 2026. The fully funded fellowship places about 100 early-career fellows with mission-driven nonprofits for 12 months.

Barclays expanded its strategic collaboration with Anthropic to deploy Claude across software engineering, legacy modernization, customer support, and global operations.

Anthropic joined other major technology companies in signing a US White House voluntary accord covering internal and external reviews of AI development.

Claude Sonnet 5.5 · 5.5

Anthropic introduced a new life-sciences research group and laboratory and reported that Claude agents identified a novel array-associated reverse-transcriptase system with CRISPR-like repeats.

Claude Opus 5.5 · 5.5

Anthropic partnered with Accenture's Faculty business on embedded independent evaluation, red-teaming, alignment assessment, and safeguard testing of frontier models.

Life Sciences Verification Program · Beta

Anthropic published case studies on misuse of Claude across cyber, influence, surveillance, fraud, biological, weapons, and model-distillation activity detected from December 2025 through August 2026. · September 2026

Enterprise Frontier Safeguards

Claude Fable 5.1 · 5.1

Claude Mythos 5.1 · 5.1

Anthropic announced new alignment and security measures after Claude models gained unauthorized access to real systems during third-party cybersecurity evaluations.

Model Hardware Standard · Research preview

Claude Fable 5 · 5

Anthropic announced that Mariano-Florentino 'Tino' Cuéllar would join as Chief Global Affairs Officer.

Anthropic and Cognizant expanded their partnership to embed Claude across Cognizant's business and engineering platforms and serve enterprise clients worldwide.

Claude Opus 5 · 5

A federal court granted final approval to Anthropic's $1.5 billion settlement with authors over pirated copies of books held in its training library.

Anthropic restored global access to Fable 5 and resumed restricted access to Mythos 5 after the relevant export controls were lifted.

Claude Sonnet 5 · 5

Claude Science

Claude Tag

Anthropic suspended access to Claude Fable 5 and Mythos 5 after a US government export-control directive concerning model safeguards.

Claude Mythos 5 · 5

Claude Fable 5 · 5

Claude Partner Network

Project Glasswing

Anthropic confidentially submitted a draft Form S-1 registration statement to the SEC for a proposed initial public offering; pricing and share count were not yet set.

Anthropic raised $65 billion in Series H funding led by Altimeter, Dragoneer, Greenoaks, and Sequoia, at a $965 billion post-money valuation. · Series H

Claude Opus 4.8 · 4.8

Claude Security

Anthropic acquired Stainless, an SDK and MCP server tooling company that had powered generation of Anthropic's official SDKs.

Anthropic agreed to use all compute capacity at SpaceX's Colossus 1 data center, adding more than 300 megawatts and over 220,000 NVIDIA GPUs.

Claude for Microsoft 365

Claude Managed Agents

Anthropic, Blackstone, Hellman & Friedman, and Goldman Sachs announced a new AI services company focused on deploying Claude at mid-sized enterprises.

Anthropic disclosed that annualized run-rate revenue had crossed $47 billion earlier in May 2026.

Anthropic disclosed that annualized run-rate revenue had surpassed $30 billion, up from about $9 billion at the end of 2025.

Amazon made an additional $5 billion investment in Anthropic and said it could invest up to a further $20 billion.

Anthropic committed more than $100 billion over ten years to AWS technologies in an agreement securing up to five gigawatts of compute capacity for Claude.

Claude Design

Claude Opus 4.7 · 4.7

Claude Mythos Preview · Preview

Project Glasswing

Claude Partner Network

Anthropic published version 3.0 of its Responsible Scaling Policy, updating its voluntary framework for managing catastrophic risks from advanced AI. · 3.0

Claude Sonnet 4.6 · 4.6

Anthropic disclosed annualized run-rate revenue of $14 billion and said it had grown more than tenfold annually for each of the prior three years.

Anthropic raised a $30 billion Series G led by GIC and Coatue, with a $380 billion post-money valuation. · Series G

Claude Opus 4.6 · 4.6

Anthropic named the Allen Institute and Howard Hughes Medical Institute as founding life-sciences partners to develop specialized AI agents and accelerate scientific discovery.

Anthropic Labs

Claude Cowork

Claude for Healthcare · Healthcare

Anthropic and the US Department of Energy announced a multi-year partnership supporting energy, life-sciences, and scientific-productivity work across national laboratories.

Model Context Protocol

Claude for Chrome

Claude Opus 4.5

Anthropic and Microsoft expanded their partnership, bringing Claude models to Microsoft Foundry and Microsoft 365 Copilot.

Claude for Excel

Claude for Life Sciences

Claude Agent Skills

Claude Haiku 4.5

Anthropic and Salesforce expanded their partnership to make Claude a preferred model for regulated Agentforce deployments.

Claude Agent SDK

Claude Code

Claude Sonnet 4.5

Anthropic agreed to a proposed $1.5 billion settlement with authors and publishers over pirated copies of books used in model development.

Anthropic completed a $13 billion Series F led by ICONIQ at a $183 billion post-money valuation.

Anthropic disclosed that annualized revenue had exceeded $5 billion by August 2025.

Claude Opus 4.1

Claude for Financial Services

Claude for Government

Anthropic appointed Netflix co-founder Reed Hastings to its board of directors.

Anthropic activated ASL-3 deployment and security protections alongside the launch of Claude Opus 4.

Claude Code

Claude 4

Claude API

Anthropic launched a program providing API credits to researchers pursuing high-impact scientific projects.

Claude Integrations

Claude Research

Claude Max

Anthropic announced its first developer conference focused on building with Claude and Claude Code.

Claude for Education

Anthropic updated its Responsible Scaling Policy to version 2.1. · 2.1

Claude

Claude web search

Claude API

Anthropic Console

Anthropic raised $3.5 billion led by Lightspeed Venture Partners at a $61.5 billion post-money valuation.

Anthropic launched a public Transparency Hub describing its safety, governance, security, and responsible-deployment practices.

Claude Code

Claude 3.7 Sonnet

Anthropic launched the Economic Index to measure how AI is being used across occupations and tasks.

Claude

Google reportedly made an additional $1 billion investment in Anthropic, deepening its existing investment and cloud relationship.

Claude 3.5 Sonnet (October 2024)

Claude 3.5 Haiku

Model Context Protocol