# Claude 2.1 vs GPT-4o mini

> Claude 2.1 and GPT-4o mini score almost the same on the Noometry Index (25.2 vs 25.5), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-gpt-4o-mini
- Last updated: 2026-10-11
- Shared benchmarks: 6

## Summary

- They share 6 benchmarks with published results for both. Claude 2.1 scores higher in 2 categories and GPT-4o mini in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude 2.1 leads 21.4 to 8.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.9% for Claude 2.1 and 6.9% for GPT-4o mini.

## Snapshot

| | Claude 2.1 | GPT-4o mini |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 25.2 | 25.5 |
| Rank | 345 | 343 |
| Context | — | 128K |
| Input $/M | — | $0.15 |
| Output $/M | — | $0.60 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 26.2 (#327)
- GPT-4o mini: 22.0 (#335)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| WeirdML | 7.1% | 11.8% |
| Aider Polyglot | — | 3.6% |
| BigCodeBench Instruct | — | 46.1% |
| LiveBench Coding | — | 43.1% |
| LMArena Coding | — | 1290 |
| BigCodeBench Complete | — | 57.4% |
| HumanEval+ | — | 83.5% |
| MBPP+ | — | 72.2% |

## Agentic & Tool Use

- Claude 2.1: —
- GPT-4o mini: 27.5 (#101)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| BALROG | — | 17.4% |

## Reasoning

- Claude 2.1: 21.4 (#221)
- GPT-4o mini: 8.7 (#347)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| DTBench | 51% | 54.4% |
| Epoch Capabilities Index | 119.27 | 126.56 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 10.7% |
| Kagi LLM Benchmark | — | 28.8% |
| Chess Puzzles | — | 0% |
| LiveBench Reasoning | — | 32.8% |
| LMArena Hard Prompts | — | 1267 |
| Mystery Game Puzzles | — | 12% |
| LiveBench Data Analysis | — | 50% |
| LMCA | — | 10.4% |
| ForecastBench | 54.2 | — |
| LiveBench | — | 41.3% |
| PIQA | — | 88.7% |

## Math

- Claude 2.1: 10.2 (#315)
- GPT-4o mini: 10.4 (#314)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 6.9% |
| FrontierMath (Tiers 1-3) | — | 0.7% |
| Omni-MATH | — | 28% |
| LiveBench Math | — | 36.3% |
| LMArena Math | — | 1267 |
| MATH Level 5 | — | 52.6% |
| GSM8K | — | 91.3% |

## Knowledge

- Claude 2.1: 15.4 (#292)
- GPT-4o mini: 17.7 (#284)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| GPQA Diamond | 33% | 37.7% |
| MMLU | 73.5% | 81.8% |
| SimpleQA Verified | — | 8.3% |
| MMLU-Pro | — | 60.3% |
| Confabulations | — | 37.2% |
| GPQA (HELM) | — | 36.8% |
| LMArena Expert | — | 1235 |
| BoolQ | — | 88.7% |

## Multimodal

- Claude 2.1: —
- GPT-4o mini: 25.9 (#122)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| LMArena Vision | — | 1066 |
| Video-MME | — | 64.8% |
| GeoBench | — | 64% |
| VPCT | — | 34% |

## Multilingual

- Claude 2.1: —
- GPT-4o mini: 42.0 (#199)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| LMArena Non-English | — | 1266 |
| LMArena Chinese | — | 1265 |
| LMArena French | — | 1297 |
| LMArena German | — | 1272 |
| LMArena Japanese | — | 1216 |
| LMArena Korean | — | 1195 |
| LMArena Russian | — | 1275 |
| LMArena Spanish | — | 1276 |

## Instruction Following

- Claude 2.1: —
- GPT-4o mini: 61.9 (#239)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| LiveBench Instruction Following | — | 56.8% |
| IFEval | — | 78.2% |
| LMArena Instruction Following | — | 1258 |

## Long Context

- Claude 2.1: —
- GPT-4o mini: 39.1 (#186)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| LMArena Longer Query | — | 1289 |

## Writing & Preference

- Claude 2.1: —
- GPT-4o mini: 39.5 (#248)

| Benchmark | Claude 2.1 | GPT-4o mini |
|---|---|---|
| LMArena Text | — | 1286 |
| LMArena Creative Writing | — | 1268 |
| Short-Story Creative Writing | — | 67.2% |
| EQ-Bench Creative Writing | — | 873 |
| WildBench | — | 79.1% |
| LMArena Multi-Turn | — | 1285 |
| LiveBench Language | — | 28.6% |

## FAQ

### Is Claude 2.1 better than GPT-4o mini?

Claude 2.1 and GPT-4o mini score almost the same on the Noometry Index (25.2 vs 25.5), so choose on price, context window or the category you care about most.

### Is Claude 2.1 or GPT-4o mini better for coding?

Claude 2.1 scores higher on coding benchmarks: 26.2 versus 22.0 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and GPT-4o mini share?

6 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and GPT-4o mini has 60.