Anthropic
availableShows if the model has enough results for an index.Claude Sonnet 5.5
Claude Sonnet 5.5 is a reasoning model from Anthropic. 41 benchmarks count toward its index, in 7 categories.
IndexOverall score out of 100.78.6±3.0Median 50.7
CoverageShare of the index weight with results.95%
SpeedOutput tokens per second.99/sMedian 62/s
First tokenSeconds to the first output token.3.1 sMedian 1.6 s
Input / 1MUS dollars per 1M input tokens.$2batch $1Median $0.6
Output / 1MUS dollars per 1M output tokens.$10batch $5 US dollars per 1M output tokens in a batch.Median $2.5
ContextMaximum tokens in one request.1MMedian 262K
EloLMArena rating and rank.N/AMedian 1427
Details
From OpenRouter- API IDThe model ID on OpenRouter.
anthropic/claude-sonnet-5.5- Max outputMaximum output tokens per request.
- 128K
- Knowledge cutoffLast date of training data.
- N/A
- ToolsTool calls on OpenRouter.
- Yes
- JSON outputOutput follows a given JSON schema.
- Yes
- Cache read / 1MUS dollars per 1M cached tokens.
- $0.2
- WeightsLink to the published weights.
- N/A
- RetiresDate OpenRouter removes the model.
- N/A
Capabilities
Score per category, out of 100.Results
41 countedBenchmarkThe test name.ResultThe score from the source.PlacePlace among results on this benchmark.
Agent Arena task outcomeAgentic13.95 / 48
Agent Arena steerabilityAgentic6.98 / 48