# GPT-4o vs Mixtral 8x7B

> GPT-4o is the stronger model overall, scoring 28.6 to 27.1 on the Noometry Index. Mixtral 8x7B costs 6.3× less per token, which makes it the better buy when GPT-4o's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-4o-vs-mixtral-8x7b
- Last updated: 2026-10-10
- Shared benchmarks: 30

## Summary

- They share 30 benchmarks with published results for both. GPT-4o scores higher in 5 categories and Mixtral 8x7B in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-4o leads 52.6 to 34.2.
- The biggest single-benchmark swing is MATH Level 5: 53.3% for GPT-4o and 10% for Mixtral 8x7B.
- Mixtral 8x7B is cheaper at $0.70 / $0.70 per million input/output tokens, against $2.50 / $10 for GPT-4o.
- GPT-4o accepts more context: 128K tokens versus 32K.
- Mixtral 8x7B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4o | Mixtral 8x7B |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 28.6 | 27.1 |
| Rank | 324 | 334 |
| Context | 128K | 32K |
| Input $/M | $2.50 | $0.70 |
| Output $/M | $10 | $0.70 |
| Weights | Proprietary | Open |

## Coding

- GPT-4o: 24.8 (#328)
- Mixtral 8x7B: 32.8 (#269)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Coding | 1297 | 1126 |
| HumanEval+ | 87.2% | 39.6% |
| MBPP+ | 72.2% | 49.7% |
| SWE-bench Verified | 31% | — |
| SWE-bench Verified (bash only) | 21.6% | — |
| Aider Polyglot | 45.3% | — |
| GSO | 0% | — |
| WeirdML | 25.1% | — |
| BigCodeBench Instruct | 51.1% | — |
| LiveBench Coding | 51.4% | — |
| BigCodeBench Complete | 61.1% | — |
| CadEval | 26% | — |

## Agentic & Tool Use

- GPT-4o: 21.0 (#141)
- Mixtral 8x7B: —

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| GDPval | 9.9% | — |
| TheAgentCompany | 8.6% | — |
| Cybench | 12.5% | — |
| BALROG | 32.3% | — |
| LMArena Search | 1006 | — |
| METR Time Horizons | 40.8% | — |

## Reasoning

- GPT-4o: 9.4 (#343)
- Mixtral 8x7B: 18.2 (#285)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Hard Prompts | 1281 | 1115 |
| DTBench | 64.5% | 49.6% |
| Epoch Capabilities Index | 128.97 | 118.47 |
| ForecastBench | 57.7 | 56.3 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 17.8% | — |
| ARC-AGI-1 | 4.5% | — |
| CritPt | 0% | — |
| Chess Puzzles | 13% | — |
| EnigmaEval | 0.8% | — |
| LiveBench Reasoning | 55.8% | — |
| LiveBench Data Analysis | 60.9% | — |
| LMCA | 16.6% | — |
| Adversarial NLI | — | 55.2% |
| HellaSwag | — | 86.7% |
| LiveBench | 55.3% | — |
| PIQA | — | 83.6% |
| WinoGrande | — | 77.2% |

## Math

- GPT-4o: 10.6 (#312)
- Mixtral 8x7B: 18.8 (#289)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| Omni-MATH | 29.3% | 10.5% |
| LMArena Math | 1285 | 1147 |
| MATH Level 5 | 53.3% | 10% |
| FrontierMath (Tiers 1-3) | 0.4% | — |
| OTIS Mock AIME 2024-2025 | 6.4% | — |
| LiveBench Math | 49.5% | — |
| FrontierMath (Feb 2025 set) | 0.3% | — |
| GSM8K | — | 74.4% |

## Knowledge

- GPT-4o: 28.8 (#242)
- Mixtral 8x7B: 11.0 (#301)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| GPQA Diamond | 49.2% | 30.6% |
| MMLU-Pro | 71.3% | 33.5% |
| GPQA (HELM) | 52% | 29.6% |
| LMArena Expert | 1250 | 1088 |
| MMLU | 88.1% | 70.6% |
| Humanity's Last Exam | 2.7% | — |
| SimpleQA Verified | 26% | — |
| Confabulations | 15.3% | — |
| Vectara Hallucination Rate | 9.6% | — |
| ARC (AI2) Challenge | — | 87.3% |
| OpenBookQA | — | 85.8% |
| TriviaQA | — | 82.2% |

## Multimodal

- GPT-4o: 34.5 (#91)
- Mixtral 8x7B: —

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Vision | 1137 | — |
| Video-MME | 71.9% | — |
| GeoBench | 71% | — |
| VPCT | 40% | — |
| ScienceQA | 88.5% | — |

## Multilingual

- GPT-4o: 43.2 (#186)
- Mixtral 8x7B: 29.6 (#266)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Non-English | 1283 | 1077 |
| LMArena Chinese | 1277 | 1055 |
| LMArena French | 1304 | 1166 |
| LMArena German | 1282 | 1114 |
| LMArena Japanese | 1257 | 931 |
| LMArena Korean | 1234 | 968 |
| LMArena Russian | 1286 | 1090 |
| LMArena Spanish | 1292 | 1111 |

## Instruction Following

- GPT-4o: 66.6 (#207)
- Mixtral 8x7B: 51.0 (#297)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| IFEval | 81.7% | 57.5% |
| LMArena Instruction Following | 1278 | 1109 |
| LiveBench Instruction Following | 68.6% | — |

## Long Context

- GPT-4o: 39.4 (#179)
- Mixtral 8x7B: 33.4 (#260)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Longer Query | 1289 | 1103 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- GPT-4o: 52.6 (#166)
- Mixtral 8x7B: 34.2 (#270)

| Benchmark | GPT-4o | Mixtral 8x7B |
|---|---|---|
| LMArena Text | 1300 | 1132 |
| LMArena Creative Writing | 1292 | 1109 |
| WildBench | 82.8% | 67.3% |
| LMArena Multi-Turn | 1302 | 1115 |
| Short-Story Creative Writing | 81.8% | — |
| LiveBench Language | 47.6% | — |

## FAQ

### Is GPT-4o better than Mixtral 8x7B?

GPT-4o is the stronger model overall, scoring 28.6 to 27.1 on the Noometry Index. Mixtral 8x7B costs 6.3× less per token, which makes it the better buy when GPT-4o's lead doesn't matter for your workload.

### Which is cheaper, GPT-4o or Mixtral 8x7B?

Mixtral 8x7B is cheaper. It lists at $0.70 per million input tokens and $0.70 per million output tokens; GPT-4o lists at $2.50 and $10.

### Is GPT-4o or Mixtral 8x7B better for coding?

Mixtral 8x7B scores higher on coding benchmarks: 32.8 versus 24.8 in the Noometry coding category.

### Which has the bigger context window?

GPT-4o does, with 128K tokens against 32K.

### How many benchmarks do GPT-4o and Mixtral 8x7B share?

30 benchmarks have published results for both models. GPT-4o has 72 scored results on Noometry and Mixtral 8x7B has 38.