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Anthropic, language model

Claude Sonnet 5.5

Released Sep 28, 2026. Scored on 3 boards.

Released
Sep 28, 2026
Price, in / out
$2.00 / $10.00
per 1M tokens, list price
Blended price
$4.00
3 input tokens per output token
Output speed
140
Tok / s, Oct 20, 2026
Context
1M
tokens
Open weights
No

Scores

The latest published score on each board, ranked against every model we track. Each score links to its source.

Claude Sonnet 5.5 scores by board
BoardScoreRankRecordDateSourceReadings
Artificial Analysis Intelligence IndexOverall562 of 4058Claude Opus 5.5Oct 20, 2026artificialanalysis.ai1
Humanity's Last ExamReasoning and knowledge46.1%Scale board4 of 467.7%Claude Opus 5.5Oct 19, 2026benchlm.ai1
Output speedSpeed140Max, Default Fallback8 of 26239Claude Haiku 5.5Oct 20, 2026artificialanalysis.ai2

History

Every reading we have stored for Claude Sonnet 5.5, on each board with more than one.

Output speed

  1. Oct 20, 2026136
  2. Oct 20, 2026140

Compare with

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