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Anthropic

Claude Opus 4 Releases

Input
$15
Output
$75
per 1M tokens, in / out
Checked Nov 9, 2026platform.claude.com

Official changelog

Claude Platform release notes - Claude Platform Docs (covers all Anthropic models)

Questions

Where is the official Claude Opus 4 changelog

Claude Platform release notes - Claude Platform Docs, at https://platform.claude.com/docs/en/release-notes/overview.

Source: claude.com, read Nov 9, 2026.

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