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Anthropic: Claude Opus 4.6 (Fast)
anthropic/claude-opus-4.6-fast
VisionTool useJSONReasoningStreaming
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
Pricing
Input
$30.00 / 1M
Output
$150.00 / 1M
Specs
Context
1,000,000 tokens
Input
text, image, file
Output
text
Released: 2026-04
Supported parameters
include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_pverbosity