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Anthropic

Claude Sonnet 5.5 (Default Fallback)

ReasoningClosed weights
Intelligence
46.8
Rank 30 of 744 measured models
Output speed
91.8 t/s
Rank 192 of 403 measured models
Price/1M
$4
Rank 532 of 659 measured models
Context window
1M
Rank 84 of 1199 measured models
Cost per task
$0.884
Rank 123 of 193 measured models

Claude Sonnet 5.5 (High, Default Fallback) scores 46.8 on the Artificial Analysis Intelligence Index, ranking 30th of 744 measured models. The closest models on this index are GPT-5.6 Sol (47.0), Grok 4.7 (46.4), and MiMo-V2.6-Pro (46.3). At $4 per million tokens (3:1 input/output blended price), it is cheaper than GPT-5.6 Sol ($8), more expensive than Grok 4.7 ($3) and MiMo-V2.6-Pro ($0.544). With an output speed of 91.8 t/s, it is faster than GPT-5.6 Sol (85.8 t/s), Grok 4.7 (78.7 t/s), and MiMo-V2.6-Pro (45.8 t/s).

Artificial Analysis Indices
High
Intelligence46.8
Rank 30 of 744 measured models
Reasoning levels
Each point is a reasoning level of this model: more reasoning often raises the score but costs more. Select a point to open that level.
Intelligence Indexmost efficient ↗Cost per task
Capability indexes
Performance in specific industries, measured by Artificial Analysis
Finance & Accounting47.1
Rank 38 of 218 measured models
Strategy & Ops51.6
Rank 33 of 218 measured models
Legal48.7
Rank 46 of 218 measured models
Engineering48.3
Rank 30 of 217 measured models
Economics51.8
Rank 49 of 225 measured models
Standard Benchmarks
HLE45.8%
Rank 46 of 664 measured models
SciCode53.7%
Rank 72 of 231 measured models
AA-LCR78.0%
Rank 120 of 575 measured models
Terminal-Bench v443.9%
Rank 25 of 218 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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