Claude Opus 4.6 Fast — Retired model
Fast-mode variant of Opus 4.6 - identical capabilities with higher output speed at premium 6x pricing. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
Technical specifications
Frequently Asked Questions
Can I still use the retired Claude Opus 4.6 Fast model?
No. Claude Opus 4.6 Fast has been retired and is retained here only as a historical reference. See the active alternatives linked on this page.
Relay integrity checks
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View the full integrity report →Related models and links
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