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Claude Opus 4.1
🇺🇸Anthropic11mo
Neura Index
70.5
Rank #64—
mediumCategory Profile
Benchmark Scores (6)
reasoning
| Benchmark | Score | Source |
|---|---|---|
| GPQA Diamond | 80.9 | verified |
math
| Benchmark | Score | Source |
|---|---|---|
| AIME 2025 | 78 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-bench Verified | 74.5 | verified |
| TerminalBench | 43.3 | verified |
general
| Benchmark | Score | Source |
|---|---|---|
| MMMLU | 89.5 | verified |
agent
| Benchmark | Score | Source |
|---|---|---|
| TAU-Bench Retail | 82.4 | verified |
Performance History
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Frequently Asked Questions about Claude Opus 4.1
What is Claude Opus 4.1's Neura Intelligence Index score?▾
Claude Opus 4.1 by Anthropic scores 70.5 out of 100 on the Neura Intelligence Index, ranking #64 among tracked AI models. This composite score is computed from 6 individual benchmarks across coding, math, reasoning, and language categories.
Is Claude Opus 4.1 open source?▾
No, Claude Opus 4.1 is a proprietary model by Anthropic. It is only accessible via their API.
What benchmark does Claude Opus 4.1 perform best on?▾
Claude Opus 4.1 achieves its highest score on MMMLU with a score of 89.5%. This benchmark evaluates multilingual massive multitask language understanding across many languages.