Overview
GPT-6.1 Sol vs Claude Opus 5.5: side-by-side summary
GPT-6.1 Sol 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.
GPT-6.1 Sol, from OpenAI, has a 1,050,000-token context window and is priced at $2/M tokens input, $10/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
- GPT-6.1 Sol: 1,050,000 tokens
- Claude Opus 5.5: 1,000,000 tokens
- Price
- GPT-6.1 Sol: $2/M tokens input, $10/M tokens output
- Claude Opus 5.5: $4/M tokens input, $20/M tokens output
- Provided by
- GPT-6.1 Sol: OpenAI
- Claude Opus 5.5: Anthropic