Anthropic: Claude Opus 4.6 (Fast)

Reasoning Tool Calling Attachments

Fast-mode variant of [Opus 4.6](/anthropic/claude-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

Providers 1

Released Apr 7, 2026

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Available Providers (1)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
Kilo Gateway	`anthropic/claude-opus-4.6-fast`	$30.00/MTok	$150.00/MTok	1M	128K

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