Claude Opus 5 (Fast)

NEW

Fast-mode variant of Opus 5 - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

1M context·$10.00 in·$50.00 out·Jul 2026 release·Vision, Reasoning, Tools / functions, Web search

Available on

OpenRouter

Providers

Where Claude Opus 5 (Fast) runs in Big-AGI, with each service's own model ID and USD-per-1M-token rates. The summary above prefers the creator's claim; rates below are each service's own.

ServiceModel IDContextInputOutputCache read

OpenRouter

anthropic/claude-opus-5-fast

$10.00

$50.00

$1.00

Usage mix in Big-AGI: OpenRouter 100%Specs as reported by each service · usage over the last 2 days · refreshed hourly

Run Claude Opus 5 (Fast) in Big-AGI.

Connect your own key on any of the services above, at their rates, no markup - and run it side by side with every other model.

Launch Big-AGI

BIG-AGI

Product

Features Models Controls What's new BEAM Technology

Resources

Documentation Discord GitHub

Company

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