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(opens in new tab)
Modalities
Input Price
$30per 1M
Output Price
$150per 1M
Context
1M
Released
Apr 7, 2026