Models & pricingGuides
Guides for migrating to the latest Claude models from previous Claude versions
- Migrating to Claude Fable 5.1 and Claude Mythos 5.1
- 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