Model comparison
Claude 2.1 vs GPT-4.1
GPT-4.1 is the stronger model overall, scoring 35.7 to 24.9 on the Noometry Index.
Last verified . 6 shared benchmarks.
Summary
- They share 6 benchmarks with published results for both. Claude 2.1 scores higher in 1 category and GPT-4.1 in 3 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-4.1 leads 37.0 to 15.5.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.9% for Claude 2.1 and 38.3% for GPT-4.1.
Side by side
| Claude 2.1 | GPT-4.1 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 24.9 | 35.7 |
| Released | 2023-11-21 | 2025-04-14 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 33K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $8 |
| Results tracked | 7 | 52 |
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Category by category
Coding GPT-4.1 leads
Claude 2.1: 25.8 (#322), GPT-4.1: 34.2 (#228)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| WeirdML | 7.1% | 39% |
| SWE-bench Verified | — | 48.5% |
| SWE-bench Verified (bash only) | — | 39.6% |
| Aider Polyglot | — | 52.4% |
| LMArena Coding | — | 1391 |
| CadEval | — | 42% |
| ALE-Bench | — | 558.1 |
Agentic & Tool Use Not comparable
Claude 2.1: —, GPT-4.1: 34.4 (#40)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 54% |
Reasoning Claude 2.1 leads
Claude 2.1: 20.6 (#216), GPT-4.1: 11.7 (#334)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| DTBench | 51% | 68.3% |
| Epoch Capabilities Index | 119.22 | 136.79 |
| ForecastBench | 54.2 | 61.5 |
| ARC-AGI-2 | — | 0.4% |
| SimpleBench | — | 27% |
| Kagi LLM Benchmark | — | 52.3% |
| ARC-AGI-1 | — | 5.5% |
| Chess Puzzles | — | 6% |
| EnigmaEval | — | 2.2% |
| LMArena Hard Prompts | — | 1384 |
| LMCA | — | 25.6% |
Math GPT-4.1 leads
Claude 2.1: 9.6 (#309), GPT-4.1: 21.4 (#269)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 38.3% |
| FrontierMath (Tiers 1-3) | — | 6% |
| Omni-MATH | — | 47.1% |
| LMArena Math | — | 1369 |
| MATH Level 5 | — | 83% |
| FrontierMath (Feb 2025 set) | — | 5.5% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge GPT-4.1 leads
Claude 2.1: 15.5 (#287), GPT-4.1: 37.0 (#152)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| GPQA Diamond | 33% | 66.9% |
| Humanity's Last Exam | — | 5.4% |
| SimpleQA Verified | — | 31.1% |
| MMLU-Pro | — | 81.1% |
| Vectara Hallucination Rate | — | 5.6% |
| GPQA (HELM) | — | 65.9% |
| LMArena Expert | — | 1364 |
| MMLU | 73.5% | — |
Multimodal Not comparable
Claude 2.1: —, GPT-4.1: 37.5 (#66)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| LMArena Vision | — | 1210 |
| GeoBench | — | 72% |
Multilingual Not comparable
Claude 2.1: —, GPT-4.1: 49.6 (#128)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| LMArena Non-English | — | 1370 |
| LMArena Chinese | — | 1382 |
| LMArena French | — | 1383 |
| LMArena German | — | 1380 |
| LMArena Japanese | — | 1320 |
| LMArena Korean | — | 1339 |
| LMArena Russian | — | 1377 |
| LMArena Spanish | — | 1375 |
Instruction Following Not comparable
Claude 2.1: —, GPT-4.1: 71.5 (#148)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| IFEval | — | 83.8% |
| LMArena Instruction Following | — | 1367 |
Long Context Not comparable
Claude 2.1: —, GPT-4.1: 40.0 (#158)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| Fiction.LiveBench | — | 63.9% |
| LMArena Longer Query | — | 1385 |
Writing & Preference Not comparable
Claude 2.1: —, GPT-4.1: 57.8 (#120)
| Benchmark | Claude 2.1 | GPT-4.1 |
|---|---|---|
| LMArena Text | — | 1383 |
| LMArena Creative Writing | — | 1363 |
| EQ-Bench Creative Writing | — | 1420 |
| WildBench | — | 85.4% |
| LMArena Multi-Turn | — | 1398 |
Frequently asked questions
Is Claude 2.1 better than GPT-4.1?
GPT-4.1 is the stronger model overall, scoring 35.7 to 24.9 on the Noometry Index.
Is Claude 2.1 or GPT-4.1 better for coding?
GPT-4.1 scores higher on coding benchmarks: 34.2 versus 25.8 in the Noometry coding category.
How many benchmarks do Claude 2.1 and GPT-4.1 share?
6 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and GPT-4.1 has 52.