Claude Opus 5 (Fast) vs Command A: side-by-side summary

Claude Opus 5 (Fast) and Command A are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Opus 5 (Fast), from Anthropic, has a 1,000,000-token context window and is priced at $10/M tokens input, $50/M tokens output on OpenRouter.

Command A, from Cohere, has a 256,000-token context window and is priced at $2.50/M tokens input, $10/M tokens output on OpenRouter.

Context window

• Claude Opus 5 (Fast): 1,000,000 tokens
• Command A: 256,000 tokens

Price

• Claude Opus 5 (Fast): $10/M tokens input, $50/M tokens output
• Command A: $2.50/M tokens input, $10/M tokens output

Provided by

• Claude Opus 5 (Fast): Anthropic
• Command A: Cohere

• Claude Opus 5 (Fast) model details, providers and pricing
• Command A model details, providers and pricing