TAU2
Measured Jul 10, 2026Source
Score
0.71
Models12 0 
Claude 4.1 Opus (Reasoning)
AnthropicAnthropicUnited States
Claude 4.1 Opus (Reasoning) is a high-performance model from Anthropic's Claude family, specifically optimized for deep reasoning and complex problem-solving tasks. It features an extended thinking mode to tackle multi-step logical challenges and is part of the multimodal Claude series supporting long-context interactions.
ReasoningCodingLong contextMultimodal
Input / 1M tokens
$15.00Output / 1M tokens
$75.00Output tokens/s
35.7First-token seconds
8.66sSupported plans
0Benchmark history
Evaluations
Terminalbench Hard
Measured Jul 10, 2026Source
Score
0.34
Lcr
Measured Jul 10, 2026Source
Score
0.66
Ifbench
Measured Jul 10, 2026Source
Score
0.55
Aime 25
Measured Jul 10, 2026Source
Score
0.8
Scicode
Measured Jul 10, 2026Source
Score
0.41
Livecodebench
Measured Jul 10, 2026Source
Score
0.65
Hle
Measured Jul 10, 2026Source
Score
0.12
Gpqa
Measured Jul 10, 2026Source
Score
0.81
Mmlu Pro
Measured Jul 10, 2026Source
Score
0.88
Artificial Analysis Math Index
Measured Jul 10, 2026Source
Score
80.3
Artificial Analysis Intelligence Index
Measured Jul 10, 2026Source
Score
33.7
Plan availability
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