Overview
Claude Opus 5 vs Claude Opus 5.5: side-by-side summary
Claude Opus 5 and Claude Opus 5.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 5, from Anthropic, has a 1,000,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.
Claude Opus 5.5, from Anthropic, has a 1,000,000-token context window and is priced at $4/M tokens input, $20/M tokens output on OpenRouter.
- Context window
- Claude Opus 5: 1,000,000 tokens
- Claude Opus 5.5: 1,000,000 tokens
- Price
- Claude Opus 5: $5/M tokens input, $25/M tokens output
- Claude Opus 5.5: $4/M tokens input, $20/M tokens output
- Provided by
- Claude Opus 5: Anthropic
- Claude Opus 5.5: Anthropic