Claude Opus 4.6 (Fast)

Anthropic model details for pricing, context, and release tracking.

Pricing data updated: 2026-05-13T16:32:23Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Model Specs

Provider	Anthropic
Model ID	`anthropic/claude-opus-4.6-fast`
Prompt Price per 1M tokens	$30
Completion Price per 1M tokens	$150
Sample Workload Cost 1M input + 500K output	$105
Context Window	1M
Release Date	2026-04-07
Popularity Rank	Unranked
Daily Demand	N/A

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Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Claude Opus 4.6 (Fast) Calculating… Estimated monthly API cost

Unit prices $30 input / $150 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Model Introduction

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

Best Fit

Claude Opus 4.6 (Fast) is best suited for long-context workloads.

Cost Example

A 1M input token plus 500K output token workload is estimated at $105.

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