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Anthropic: Claude Opus 4.8 (Fast)

anthropic/claude-opus-4.8-fast

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Fast-mode variant of Opus 4.8 - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8.

Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode(opens in new tab)

Modalities

Input Price

$10per 1M

Output Price

$50per 1M

Context

1M

Weekly Tokens

207M

Released

May 27, 2026

Overview
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API

Providers for Claude Opus 4.8 (Fast)

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.