Anthropic model releases

The public, guardrailed sibling of Mythos and Anthropic's most capable widely-released model, built for long-horizon agentic work. Launched June 9, 2026 across the Claude API, AWS, and Microsoft Foundry — then pulled three days later under a US government export-control directive barring access by foreign nationals.

Anthropic's most capable model, with strengthened agentic and long-running task performance.

A frontier model Anthropic disclosed on April 7, 2026 but declined to release publicly, citing security risk. Shipped only via 'Project Glasswing' to ~50 defensive-security partners, then suspended on June 12, 2026 under a US government directive.

Introduced genuinely autonomous multi-file coding and stronger computer use.

First Claude 4 Opus model, positioned for long-running agentic and coding work before the 4.x point releases.

Anthropic's first hybrid-reasoning Sonnet. Shut down May 11, 2026 as the 4.x line matured.

Fast, lower-cost Claude 3.5 model for latency-sensitive coding, tool-use, and customer-facing workloads.

Major Sonnet upgrade that became Anthropic's default high-intelligence workhorse for coding, writing, and visual reasoning.

Highest-capability Claude 3 model, launched with Sonnet and Haiku and Anthropic's first major vision-capable Claude family.

Claude update with a 200K context window, lower hallucination rates, and improved tool-use beta support.

Anthropic's first widely-available Claude, notable for an early 100k-token context window.

Anthropic's first broadly announced Claude assistant model, launched through an API and select product partners.