Model record

Claude Opus 4.1

reasoning

Anthropic · released Aug 5, 2025

Overall standing

Overall
39.7rank 52 of 63
39.7 is at approximately the 18th percentile of the ranked Overall field. The field spans 19.0 to 62.2, with a median of 49.4.
6 of 8 measured · 2 estimated
Category standingsReasoning 53.6Coding 45.0Math 0.0Agentic 12.9
Reasoning
53.6rank 54 of 63
53.6 is at approximately the 15th percentile of the ranked Reasoning field. The field spans 31.6 to 73.3, with a median of 65.0.
4 of 4 measured
Coding
45.0rank 49 of 63
45.0 is at approximately the 23th percentile of the ranked Coding field. The field spans 10.4 to 72.4, with a median of 54.5.
1 of 2 measured · 1 estimated
Math
0.0rank 54 of 63
0.0 is at approximately the 8th percentile of the ranked Math field. The field spans 0.0 to 32.3, with a median of 5.7.
1 of 1 measured
Agentic
12.9rank 49 of 63
12.9 is at approximately the 23th percentile of the ranked Agentic field. The field spans 3.3 to 33.4, with a median of 19.0.
0 of 1 measured · 1 estimated
Model factsProprietary · $15.0 / $75.0 per 1M

Model facts come from the provider page. Listed API prices carry a separate first-party source and check date.

Provider
Anthropic
Released
Weights
Proprietary
Context window
200,000 tokens
Input price / Mtok
$15.0
Output price / Mtok
$75.0
Price source
Official pricing (opens in a new tab)
Reasoning effort
reasoning

Scores and sources

Measured scores retain their source and retrieval date. Missing scores are not treated as zero.

Benchmark scores, evaluation settings, sources, and retrieval dates for Claude Opus 4.1
BenchmarkCategoryScoreEvaluation settingsSource
Terminal-Bench v2.1Coding—Not measured in this datasetNo source
τ³-BankingAgentic—Not measured in this datasetNo source
AA-LCRReasoning66.3Artificial Analysis independent run; 100 roughly 100k-token multi-document questions; 3 repeats; equality-checker pass@1; no toolsOpen source (opens in a new tab)
Humanity's Last ExamReasoning11.9Artificial Analysis independent run; 2,158 text-only questions; pass@1; GPT-4o (August 2024) equality checker; no toolsOpen source (opens in a new tab)
GPQA DiamondReasoning80.9Artificial Analysis independent run; 198 questions; 5 repeats; regex-graded pass@1; no toolsOpen source (opens in a new tab)
SciCodeCoding40.9Artificial Analysis independent run; 288 test subproblems; scientist background included; 3 repeats; subproblem pass@1Open source (opens in a new tab)
IFBenchReasoning55.4Artificial Analysis independent run; 294 single-turn prompts; 5 repeats; official loose evaluator; prompt-level pass@1Open source (opens in a new tab)
CritPtMath0.0Artificial Analysis independent run; 70 test challenges; 5 repeats; two-step answer parsing; official CritPt grader; pass@1; no toolsOpen source (opens in a new tab)