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Claude Sonnet 5.5

AnthropicOpenRouter ↗Artificial Analysis ↗

Fast Claude model for everyday coding, agents, and knowledge work

Benchmarks

BenchmarkCategoryScoreVariantProvenanceSourceObserved
AA Intelligence Indexintelligence56.0—mirroropenrouterSep 29, 2026
46.8high-effortindependentaaOct 2, 2026
Design Arena — 3dpreference1460—mirroropenrouterOct 16, 2026
1458—mirroropenrouterOct 20, 2026
Design Arena — codecategoriespreference1364—mirroropenrouterOct 20, 2026
Design Arena — datavizpreference1387—mirroropenrouterOct 20, 2026
Design Arena — gamedevpreference1466—mirroropenrouterOct 16, 2026
1478—mirroropenrouterOct 17, 2026
1474—mirroropenrouterOct 20, 2026
Design Arena — mobileappspreference1276—mirroropenrouterOct 20, 2026
Design Arena — uicomponentpreference1381—mirroropenrouterOct 16, 2026
1378—mirroropenrouterOct 17, 2026
1373—mirroropenrouterOct 20, 2026
Design Arena — websitepreference1330—mirroropenrouterOct 16, 2026
1328—mirroropenrouterOct 16, 2026
1326—mirroropenrouterOct 17, 2026
1325—mirroropenrouterOct 20, 2026
LMArena Textpreference1470xhigh-effortcrowdlmarenaOct 15, 2026
LMArena Visionpreference1289xhigh-effortcrowdlmarenaOct 9, 2026
LMArena WebDevpreference1774xhigh-effortcrowdlmarenaOct 13, 2026
1713high-effortcrowdlmarenaOct 13, 2026
Median output speedspeed106 tok/shigh-effortindependentaaOct 20, 2026
Median time to first tokenspeed10.46shigh-effortindependentaaOct 19, 2026

Includes index data from Artificial Analysis.

Providers

Live operational stats per hosting endpoint, via OpenRouter.

ProviderQuantContext$/1M in · outUptime 24hLatencyThroughput
Amazon Bedrock—1M$2 · $1099.86%——
Anthropic—1M$2 · $10100.00%——
Azure—1M$2 · $10100.00%——
Azure—1M$2.2 · $11100.00%——
Claude Platform on AWS—1M$2 · $10100.00%——
Google—1M$2.2 · $11100.00%——
Google—1M$2 · $10100.00%——
Google—1M$2.2 · $11100.00%——