Releases

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