OpenRouter model
Claude Opus 5 (Fast)
Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: provider documentation
- Provider
- OpenRouter
- Availability
- Available
- Model ID
- anthropic/claude-opus-5-fast
- Snapshot
- 2026-08-28
Claude Opus 5 (Fast) model overview
Claude Opus 5 (Fast) is listed in the public Swarm catalog through OpenRouter. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenRouter
- Family
- OpenRouter
- Context window
- 1M tokens
- Thinking support
- off · low · medium · high · xhigh · max
- Availability status
- Available
- Catalog ID
- openrouter/anthropic/claude-opus-5-fast
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.