Compare Claude Sonnet 5.5 from Anthropic and Mistral Large 4 from Mistral AI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


Claude Sonnet 5.5 and Mistral Large 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Sonnet 5.5, from Anthropic, has a 1,000,000-token context window and is priced at $2/M tokens input, $10/M tokens output on OpenRouter.
Mistral Large 4, from Mistral AI, has a 1,048,576-token context window and is priced at $0.68/M tokens input, $2.09/M tokens output on OpenRouter.
| Attribute | Claude Sonnet 5.5 | Mistral Large 4 |
|---|---|---|
| Input price | $2/M tokens | $0.68/M tokens |
| Output price | $10/M tokens | $2.09/M tokens |
| Context window | 1,000,000 tokens | 1,048,576 tokens |
| Intelligence Index | 56.0 | 38.4 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 3.00 s | 1.32 s |
| Throughput (p50) | 112.0 tok/s | 65.0 tok/s |
Benchmark data updated
Mistral Large 4 is cheaper than Claude Sonnet 5.5 on OpenRouter: Mistral Large 4 costs $0.68/M tokens input and $2.09/M tokens output, while Claude Sonnet 5.5 costs $2/M tokens input and $10/M tokens output.
Mistral Large 4 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Sonnet 5.5.
Claude Sonnet 5.5 is faster on OpenRouter, generating a median 112.0 tokens per second compared with 65.0 tokens per second for Mistral Large 4.