# GPT-4.5 vs Mistral Nemo

> GPT-4.5 is the stronger model overall, scoring 37.2 to 26.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-4-5-vs-mistral-nemo
- Last updated: 2026-10-11
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. GPT-4.5 scores higher in 4 categories and Mistral Nemo in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-4.5 leads 56.9 to 28.5.
- The biggest single-benchmark swing is MATH Level 5: 78.6% for GPT-4.5 and 10.8% for Mistral Nemo.
- Mistral Nemo has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4.5 | Mistral Nemo |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 37.2 | 26.4 |
| Rank | 208 | 337 |
| Context | — | 128K |
| Input $/M | — | $0.15 |
| Output $/M | — | $0.15 |
| Weights | Proprietary | Open |

## Coding

- GPT-4.5: 42.2 (#109)
- Mistral Nemo: —

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| Aider Polyglot | 44.9% | — |
| WeirdML | 39.4% | — |
| LiveBench Coding | 75.2% | — |
| LMArena Coding | 1396 | — |

## Agentic & Tool Use

- GPT-4.5: 27.9 (#97)
- Mistral Nemo: 23.5 (#125)

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 27.6% |
| Cybench | 17.5% | — |
| BALROG | — | 17.6% |

## Reasoning

- GPT-4.5: 13.9 (#330)
- Mistral Nemo: 20.7 (#232)

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| Epoch Capabilities Index | 136.74 | 118.68 |
| ARC-AGI-2 | 0.8% | — |
| SimpleBench | 34.5% | — |
| ARC-AGI-1 | 10.3% | — |
| EnigmaEval | 3.2% | — |
| LiveBench Reasoning | 71.1% | — |
| LMArena Hard Prompts | 1403 | — |
| DTBench | — | 48.6% |
| LiveBench Data Analysis | 64.3% | — |
| ForecastBench | 61.7 | — |
| LiveBench | 69% | — |
| PIQA | — | 83.5% |

## Math

- GPT-4.5: 32.6 (#211)
- Mistral Nemo: 25.5 (#268)

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| MATH Level 5 | 78.6% | 10.8% |
| OTIS Mock AIME 2024-2025 | 37.8% | — |
| LiveBench Math | 69.3% | — |
| LMArena Math | 1412 | — |
| GSM8K | — | 84.2% |

## Knowledge

- GPT-4.5: 32.5 (#211)
- Mistral Nemo: 12.3 (#298)

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| GPQA Diamond | 68.7% | 29.9% |
| Humanity's Last Exam | 5.4% | — |
| Confabulations | 13.6% | — |
| LMArena Expert | 1394 | — |
| BoolQ | — | 82.5% |

## Multimodal

- GPT-4.5: 37.6 (#71)
- Mistral Nemo: —

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| LMArena Vision | 1195 | — |
| VPCT | 45% | — |

## Multilingual

- GPT-4.5: 52.5 (#83)
- Mistral Nemo: —

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| LMArena Non-English | 1413 | — |
| LMArena Chinese | 1421 | — |
| LMArena French | 1418 | — |
| LMArena German | 1457 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1392 | — |
| LMArena Russian | 1419 | — |

## Instruction Following

- GPT-4.5: 72.6 (#134)
- Mistral Nemo: —

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| LiveBench Instruction Following | 72.3% | — |
| LMArena Instruction Following | 1404 | — |

## Long Context

- GPT-4.5: 40.4 (#155)
- Mistral Nemo: —

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| Fiction.LiveBench | 63.9% | — |
| LMArena Longer Query | 1406 | — |

## Writing & Preference

- GPT-4.5: 56.9 (#134)
- Mistral Nemo: 28.5 (#296)

| Benchmark | GPT-4.5 | Mistral Nemo |
|---|---|---|
| EQ-Bench Creative Writing | 1258 | 881 |
| LMArena Text | 1417 | — |
| LMArena Creative Writing | 1394 | — |
| Short-Story Creative Writing | 75.6% | — |
| LMArena Multi-Turn | 1444 | — |
| LiveBench Language | 61.5% | — |

## FAQ

### Is GPT-4.5 better than Mistral Nemo?

GPT-4.5 is the stronger model overall, scoring 37.2 to 26.4 on the Noometry Index.

### How many benchmarks do GPT-4.5 and Mistral Nemo share?

4 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and Mistral Nemo has 10.