Opus migration changedmodels/opus-5/migration-guide
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## Migrating to Claude Opus 5 from Claude Opus 4.8 ### Update your model name ### Breaking changes ### Recommended changes ### Migration checklist ## Migrating to Claude Opus 5 from Claude Opus 4.7 ### Update your model name ### Breaking changes ### What changed ### Recommended changes ### Migration checklist ## Migrating to Claude Opus 5 from Claude Opus 4.6 and earlier Opus models ### Update your model name ### Breaking changes ### Choosing an effort level ### Behavior changes ### Recommended changes ### Migration checklist ### Migrating from Claude Opus 4.5 or earlier #### Update your model name #### Breaking changes #### Recommended changes ### Migrating from Claude 4.1 or earlier #### Additional breaking changes #### Additional recommended changes ### Migration checklist (from Claude Opus 4.5 or earlier) ## Migrating to Claude Opus 5 from Claude Sonnet 5 ### Update your model name ### What changed ### Migration checklist
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