Claude Sonnet 5 vs Claude Sonnet 5.5
Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.
Claude Sonnet 5 vs Claude Sonnet 5.5: summary
Claude Sonnet 5 and Claude Sonnet 5.5 are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.
Claude Sonnet 5, from Anthropic, has a 1,000,000-token context window, costs from $2.00/1M input and $10.00/1M output tokens across 2 providers and scores 38.2 on the Artificial Analysis Intelligence Index.
Claude Sonnet 5.5, from Anthropic, has a 1,000,000-token context window, costs $2.00/1M input and $10.00/1M output tokens and scores 56.0 on the Artificial Analysis Intelligence Index.
Claude Sonnet 5.5 scores highest for intelligence.
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Benchmark scores sourced from ArtificialAnalysis