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Models & pricingGuidesMigration guidesCopy pageGuides for migrating to the latest Claude models from previous Claude versionsCopy page Migrating to Claude Mythos 5 and Claude Fable 5 Migrating to Claude Opus 5 Migrating to Claude Sonnet 5 Migrating to Claude Haiku 4.5 Get help Check the API documentation for detailed specifications Review model capabilities for performance comparisons Review API release notes for API updates Contact support if you encounter any issues during migration Was this page helpful?