Model card
Claude Opus 4.1.
Anthropic
§ 01 · Benchmarks
Every benchmark Claude Opus 4.1 has a recorded score for.
| # | Benchmark | Area · Task | Metric | Value | Rank | Date | Source |
|---|---|---|---|---|---|---|---|
| 01 | MMLU-Pro | Reasoning · Commonsense Reasoning | accuracy | 88.0% | #6 | 2026-04-20 | source ↗ |
| 02 | SWE-bench Verified | Agentic AI · SWE-bench | resolve-rate | 74.5% | #22 | — | source ↗ |
Rank column shows this model’s position vs all other models scored on the same benchmark + metric (competitors after the slash). #1 in red means current SOTA. Sorted by rank, then newest result.
§ 02 · Strengths by area
Where Claude Opus 4.1 actually performs.
§ 04 · Related models
Other Anthropic models scored on Codesota.
Claude Opus 4
Undisclosed params · 13 results · 2 SOTA
Claude Opus 4.5
3 results · 2 SOTA
Claude Sonnet 5
Undisclosed params · 2 results · 2 SOTA
Claude Sonnet 4
10 results · 1 SOTA
Claude Mythos Preview
1 result · 1 SOTA
Claude 3.5 Sonnet
Undisclosed params · 27 results
Claude Opus 4.5
Undisclosed params · 13 results
Claude 3.7 Sonnet
10 results
§ 05 · Sources & freshness
Where these numbers come from.
pricepertoken
1
result
editorial
1
result
1 of 2 rows marked verified.