Awesome list for Claude Opus 5: announcement, API docs, model ID, effort settings, migration notes and reviews.
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Updated
Sep 22, 2026
Awesome list for Claude Opus 5: announcement, API docs, model ID, effort settings, migration notes and reviews.
Claude Opus 5 API examples in Python: claude-opus-5 quickstart, effort levels, mid-conversation tool changes beta.
Claude Opus 5 alternatives compared: Fable 5, Opus 4.8, Sonnet 5 and Synexa, with only sourced attributes.
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