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Anthropic

Claude 4.1 Opus

ReasoningClosed weights
Intelligence
22.8
Rank 206 of 744 measured models
Price/1M
$30
Rank 651 of 659 measured models
Context window
200K
Rank 618 of 1199 measured models

Claude 4.1 Opus (Reasoning) scores 22.8 on the Artificial Analysis Intelligence Index, ranking 206th of 744 measured models. The closest models on this index are Nemotron 3 Ultra 550B A55B (22.9), Qwen3.5 27B (22.9), and MiniMax-M2.5 (22.8). At $30 per million tokens (3:1 input/output blended price), it is more expensive than Nemotron 3 Ultra 550B A55B ($1.08), Qwen3.5 27B ($0.825), and MiniMax-M2.5 ($0.525).

Artificial Analysis Indices
Reasoning
Intelligence22.8
Rank 206 of 744 measured models
Math80.3
Rank 64 of 270 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 ↗Price / 1M tokens
Standard Benchmarks
MMLU Pro88.0%
Rank 7 of 349 measured models
GPQA Diamond80.9%
Rank 198 of 619 measured models
HLE12.5%
Rank 287 of 664 measured models
LiveCodeBench65.4%
Rank 94 of 343 measured models
AIME 202580.3%
Rank 64 of 270 measured models
IFBench55.4%
Rank 150 of 450 measured models
AA-LCR76.0%
Rank 147 of 575 measured models
TerminalBench Hard34.3%
Rank 90 of 432 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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