# GPT-5.4 Pro vs Mistral Medium

> GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 36.0 on the Noometry Index. Mistral Medium costs 23× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-5-4-pro-vs-mistral-medium
- Last updated: 2026-10-10
- Shared benchmarks: 6

## Summary

- They share 6 benchmarks with published results for both. GPT-5.4 Pro scores higher in 4 categories and Mistral Medium in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.4 Pro leads 71.0 to 23.3.
- The biggest single-benchmark swing is Humanity's Last Exam: 44.3% for GPT-5.4 Pro and 4.5% for Mistral Medium.
- Mistral Medium is cheaper at $1.50 / $7.50 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 262K.
- Mistral Medium has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 58.8 | 36.0 |
| Rank | 16 | 211 |
| Context | 1.05M | 262K |
| Input $/M | $30 | $1.50 |
| Output $/M | $180 | $7.50 |
| Weights | Proprietary | Open |

## Coding

- GPT-5.4 Pro: 42.6 (#89)
- Mistral Medium: 33.8 (#241)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| WeirdML | 57.4% | 43.7% |
| FrontierCode | — | 8% |
| SciCode | — | 40.2% |
| LMArena Coding | — | 1434 |
| ALE-Bench | — | 763.98 |

## Agentic & Tool Use

- GPT-5.4 Pro: —
- Mistral Medium: 28.1 (#84)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 37.7% |

## Reasoning

- GPT-5.4 Pro: 71.0 (#10)
- Mistral Medium: 23.3 (#165)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| CritPt | 30% | 0% |
| ARC-AGI-2 | 83.3% | — |
| SimpleBench | 74.1% | — |
| Kagi LLM Benchmark | — | 50% |
| ARC-AGI-1 | 94.5% | — |
| Chess Puzzles | 58.6% | — |
| EnigmaEval | 23.8% | — |
| LMArena Hard Prompts | — | 1426 |
| DTBench | — | 75.5% |
| LMCA | — | 26.1% |
| Surface Evolver Bench | — | 26.9% |
| Epoch Capabilities Index | 159.12 | — |

## Math

- GPT-5.4 Pro: 72.0 (#17)
- Mistral Medium: 27.2 (#238)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| FrontierMath (Feb 2025 set) | 50% | 0.3% |
| FrontierMath (Tiers 1-3) | 82.5% | — |
| FrontierMath Tier 4 | 58.5% | — |
| OTIS Mock AIME 2024-2025 | — | 32.2% |
| ProofBench | — | 9% |
| LMArena Math | — | 1409 |
| MATH Level 5 | — | 81.6% |
| FrontierMath Tier 4 (v1) | 37.5% | — |

## Knowledge

- GPT-5.4 Pro: 68.3 (#6)
- Mistral Medium: 24.9 (#260)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| GPQA Diamond | 94.6% | 59.5% |
| Humanity's Last Exam | 44.3% | 4.5% |
| Vectara Hallucination Rate | 8.3% | 22.7% |
| SimpleQA Verified | 46.3% | — |
| LMArena Expert | — | 1408 |

## Multimodal

- GPT-5.4 Pro: —
- Mistral Medium: 34.6 (#82)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| LMArena Vision | — | 1172 |

## Multilingual

- GPT-5.4 Pro: —
- Mistral Medium: 52.3 (#86)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| LMArena Non-English | — | 1408 |
| LMArena Chinese | — | 1448 |
| LMArena French | — | 1460 |
| LMArena German | — | 1433 |
| LMArena Japanese | — | 1378 |
| LMArena Korean | — | 1382 |
| LMArena Russian | — | 1411 |
| LMArena Spanish | — | 1433 |

## Instruction Following

- GPT-5.4 Pro: —
- Mistral Medium: 73.9 (#111)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| LMArena Instruction Following | — | 1398 |

## Long Context

- GPT-5.4 Pro: —
- Mistral Medium: 42.9 (#108)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| LMArena Longer Query | — | 1406 |

## Writing & Preference

- GPT-5.4 Pro: —
- Mistral Medium: 60.2 (#97)

| Benchmark | GPT-5.4 Pro | Mistral Medium |
|---|---|---|
| LMArena Text | — | 1424 |
| LMArena Creative Writing | — | 1391 |
| Short-Story Creative Writing | — | 77.3% |
| LMArena Multi-Turn | — | 1418 |

## FAQ

### Is GPT-5.4 Pro better than Mistral Medium?

GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 36.0 on the Noometry Index. Mistral Medium costs 23× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.

### Which is cheaper, GPT-5.4 Pro or Mistral Medium?

Mistral Medium is cheaper. It lists at $1.50 per million input tokens and $7.50 per million output tokens; GPT-5.4 Pro lists at $30 and $180.

### Is GPT-5.4 Pro or Mistral Medium better for coding?

GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 33.8 in the Noometry coding category.

### Which has the bigger context window?

GPT-5.4 Pro does, with 1.05M tokens against 262K.

### How many benchmarks do GPT-5.4 Pro and Mistral Medium share?

6 benchmarks have published results for both models. GPT-5.4 Pro has 16 scored results on Noometry and Mistral Medium has 36.