Model comparison
Claude 3 Opus vs Claude Opus 4.1
Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 29.5 on the Noometry Index.
Last verified . 30 shared benchmarks.
Summary
- They share 30 benchmarks with published results for both. Claude 3 Opus scores higher in 1 category and Claude Opus 4.1 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 4.1 leads 32.2 to 14.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.7% for Claude 3 Opus and 68.9% for Claude Opus 4.1.
Side by side
| Claude 3 Opus | Claude Opus 4.1 | |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Noometry Index | 29.5 | 41.0 |
| Released | 2024-02-29 | 2025-08-05 |
| Weights | Proprietary | Proprietary |
| Context window | — | 200K |
| Max output | — | 32K |
| Input $ / M tokens | — | $15 |
| Output $ / M tokens | — | $75 |
| Results tracked | 46 | 48 |
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Category by category
Coding Claude Opus 4.1 leads
Claude 3 Opus: 32.9 (#267), Claude Opus 4.1: 44.4 (#73)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| WeirdML | 19.2% | 45.9% |
| LMArena Coding | 1264 | 1479 |
| SWE-bench Verified | — | 73.3% |
| LMArena WebDev | — | 1390 |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 38.6% | — |
| BigCodeBench Complete | 57.4% | — |
| ALE-Bench | — | 674.77 |
| AlgoTune | — | 1.34 |
| HumanEval+ | 77.4% | — |
| MBPP+ | 73.3% | — |
Agentic & Tool Use Claude Opus 4.1 leads
Claude 3 Opus: 24.6 (#116), Claude Opus 4.1: 35.0 (#41)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| Cybench | 10% | 42% |
| METR Time Horizons | 29.5% | 66.8% |
| Terminal-Bench | — | 38% |
| GDPval | — | 43.6% |
| DeepResearch Bench | — | 48.3% |
| LMArena Search | — | 1148 |
Reasoning Claude Opus 4.1 leads
Claude 3 Opus: 14.6 (#324), Claude Opus 4.1: 32.2 (#76)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| SimpleBench | 23.5% | 60% |
| Chess Puzzles | 5% | 7% |
| EnigmaEval | 0.8% | 7.2% |
| LMArena Hard Prompts | 1245 | 1443 |
| DTBench | 61.6% | 80% |
| LMCA | 17% | 37.1% |
| Epoch Capabilities Index | 126.91 | 144.12 |
| ForecastBench | 58.4 | 62 |
| EBR-Bench | — | 7.9% |
| LiveBench Reasoning | 40.6% | — |
| Mystery Game Puzzles | — | 21% |
| LiveBench Data Analysis | 57.9% | — |
| LiveBench | 49.2% | — |
| WinoGrande | 88.5% | — |
Math Claude Opus 4.1 leads
Claude 3 Opus: 14.8 (#299), Claude Opus 4.1: 22.3 (#277)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 4.7% | 68.9% |
| LMArena Math | 1273 | 1431 |
| FrontierMath (Tiers 1-3) | — | 12.6% |
| FrontierMath Tier 4 | — | 2.4% |
| LiveBench Math | 43.6% | — |
| MATH Level 5 | 37.5% | — |
| FrontierMath (Feb 2025 set) | — | 7.2% |
| FrontierMath Tier 4 (v1) | — | 4.2% |
Knowledge Claude Opus 4.1 leads
Claude 3 Opus: 24.5 (#267), Claude Opus 4.1: 42.0 (#101)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| GPQA Diamond | 47.2% | 77.3% |
| Confabulations | 22.7% | 17.1% |
| LMArena Expert | 1223 | 1439 |
| Humanity's Last Exam | — | 11.5% |
| SimpleQA Verified | 12.6% | — |
| Vectara Hallucination Rate | — | 11.8% |
| MMLU | 84.6% | — |
Multimodal Too close to call
Claude 3 Opus: 27.1 (#116), Claude Opus 4.1: 26.8 (#119)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| LMArena Vision | 1023 | — |
| VPCT | — | 35% |
Multilingual Claude Opus 4.1 leads
Claude 3 Opus: 41.4 (#207), Claude Opus 4.1: 52.0 (#95)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| LMArena Non-English | 1258 | 1405 |
| LMArena Chinese | 1248 | 1427 |
| LMArena French | 1275 | 1431 |
| LMArena German | 1258 | 1413 |
| LMArena Japanese | 1204 | 1378 |
| LMArena Korean | 1187 | 1380 |
| LMArena Russian | 1280 | 1422 |
| LMArena Spanish | 1246 | 1448 |
Instruction Following Claude Opus 4.1 leads
Claude 3 Opus: 64.1 (#228), Claude Opus 4.1: 75.6 (#58)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| LMArena Instruction Following | 1248 | 1435 |
| LiveBench Instruction Following | 63.9% | — |
Long Context Claude Opus 4.1 leads
Claude 3 Opus: 38.2 (#202), Claude Opus 4.1: 44.5 (#63)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| LMArena Longer Query | 1259 | 1455 |
Writing & Preference Claude Opus 4.1 leads
Claude 3 Opus: 47.2 (#213), Claude Opus 4.1: 62.4 (#74)
| Benchmark | Claude 3 Opus | Claude Opus 4.1 |
|---|---|---|
| LMArena Text | 1262 | 1419 |
| LMArena Creative Writing | 1235 | 1412 |
| LMArena Multi-Turn | 1275 | 1444 |
| Short-Story Creative Writing | — | 84.7% |
| LiveBench Language | 50.4% | — |
Frequently asked questions
Is Claude 3 Opus better than Claude Opus 4.1?
Claude Opus 4.1 is the stronger model overall, scoring 41.0 to 29.5 on the Noometry Index.
Is Claude 3 Opus or Claude Opus 4.1 better for coding?
Claude Opus 4.1 scores higher on coding benchmarks: 44.4 versus 32.9 in the Noometry coding category.
How many benchmarks do Claude 3 Opus and Claude Opus 4.1 share?
30 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Claude Opus 4.1 has 48.