ModelsAnthropic · released 2026-09-28
Sonnet 5.5
Measured on 96 benchmarks across 5 reasoning efforts.
Open Index
64.9
#3 of 29 models · best at max
- Weights
- Proprietary
- Context window
- 1M tokens
- API price
- $2 in · $10 out per 1M tokens
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ModelsAnthropic · released 2026-09-28
Measured on 96 benchmarks across 5 reasoning efforts.
Open Index
64.9
#3 of 29 models · best at max
Loading charts…