top10.dev / news / anthropic-ships-1m-context-window-for-claude-opus-46-and-sonnet-46-71

$ cat /top10/Sat Mar 14 2026 00:00:00 GMT+0000 (Coordinated Universal Time)/anthropic-ships-1m-context-window-for-claude-opus-46-and-sonnet-46-71

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Anthropic Blog
Saturday, March 14, 2026

Anthropic Ships 1M Context Window for Claude Opus 4.6 and Sonnet 4.6

AI / MLBackend / APIs
// summary

Anthropic's 1-million token context window is now generally available for Opus 4.6 and Sonnet 4.6, a massive leap for developers working with large codebases and document analysis. This was previously in limited preview and is now open to all API users.

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