Claude Sonnet 4.6 launch
Launched the most capable Sonnet model yet with upgrades across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Features a 1M token context window in beta.
Fetched April 10, 2026
Launched the most capable Sonnet model yet with upgrades across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Features a 1M token context window in beta.
Fetched April 10, 2026
Claude Fable 5 ( ) and Claude Mythos 5 ( ) launched with 1M token context window by default, 128k max output tokens, and always-on adaptive…
Anthropic · Claude PlatformAn upgrade to our Opus class of models, with stronger performance across coding, agentic tasks, and professional work, and the consistency…
Anthropic · Anthropic News
