Model comparison
GPT-5 vs Mixtral 8x7B
GPT-5 is the stronger model overall, scoring 50.9 to 27.1 on the Noometry Index. Mixtral 8x7B costs 4.9× less per token, which makes it the better buy when GPT-5's lead doesn't matter for your workload.
Last verified . 27 shared benchmarks.
Mistral AISummary
- They share 27 benchmarks with published results for both. GPT-5 scores higher in 8 categories and Mixtral 8x7B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5 leads 56.6 to 11.0.
- The biggest single-benchmark swing is MATH Level 5: 98.1% for GPT-5 and 10% for Mixtral 8x7B.
- Mixtral 8x7B is cheaper at $0.70 / $0.70 per million input/output tokens, against $1.25 / $10 for GPT-5.
- GPT-5 accepts more context: 400K tokens versus 32K.
- Mixtral 8x7B has downloadable open weights; the other is API-only.
Side by side
| GPT-5 | Mixtral 8x7B | |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 50.9 | 27.1 |
| Released | 2025-08-07 | 2023-12-11 |
| Weights | Proprietary | Open |
| Context window | 400K | 32K |
| Max output | 128K | 32K |
| Input $ / M tokens | $1.25 | $0.70 |
| Output $ / M tokens | $10 | $0.70 |
| Results tracked | 69 | 38 |
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Category by category
Coding GPT-5 leads
GPT-5: 50.3 (#47), Mixtral 8x7B: 32.8 (#269)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Coding | 1436 | 1126 |
| SWE-bench Verified | 73.6% | — |
| SWE-bench Verified (bash only) | 65% | — |
| Aider Polyglot | 88% | — |
| LMArena WebDev | 1418 | — |
| SciCode | 42.9% | — |
| GSO | 6.9% | — |
| WeirdML | 60.7% | — |
| ALE-Bench | 1,162 | — |
| AlgoTune | 1.67 | — |
| HumanEval+ | — | 39.6% |
| MBPP+ | — | 49.7% |
Agentic & Tool Use Not comparable
GPT-5: 33.1 (#56), Mixtral 8x7B: —
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| Terminal-Bench | 49.6% | — |
| GDPval | 34.8% | — |
| Remote Labor Index | 1.7% | — |
| DeepResearch Bench | 49.6% | — |
| BALROG | 32.8% | — |
| LMArena Search | 1133 | — |
| METR Time Horizons | 69.6% | — |
Reasoning GPT-5 leads
GPT-5: 38.3 (#64), Mixtral 8x7B: 18.2 (#285)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Hard Prompts | 1416 | 1115 |
| DTBench | 90.7% | 49.6% |
| Epoch Capabilities Index | 150 | 118.47 |
| ForecastBench | 61.4 | 56.3 |
| ARC-AGI-2 | 9.9% | — |
| SimpleBench | 56.7% | — |
| Kagi LLM Benchmark | 72.7% | — |
| ARC-AGI-1 | 65.7% | — |
| CritPt | 12.6% | — |
| Chess Puzzles | 37% | — |
| EnigmaEval | 10.5% | — |
| EBR-Bench | 12.7% | — |
| Mystery Game Puzzles | 23% | — |
| LMCA | 40% | — |
| Adversarial NLI | — | 55.2% |
| HellaSwag | — | 86.7% |
| PIQA | — | 83.6% |
| WinoGrande | — | 77.2% |
Math GPT-5 leads
GPT-5: 55.0 (#44), Mixtral 8x7B: 18.8 (#289)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| Omni-MATH | 64.7% | 10.5% |
| LMArena Math | 1407 | 1147 |
| MATH Level 5 | 98.1% | 10% |
| FrontierMath (Tiers 1-3) | 55.4% | — |
| FrontierMath Tier 4 | 22% | — |
| OTIS Mock AIME 2024-2025 | 91.4% | — |
| ProofBench | 18% | — |
| FrontierMath (Feb 2025 set) | 32.4% | — |
| FrontierMath Tier 4 (v1) | 12.5% | — |
| GSM8K | — | 74.4% |
Knowledge GPT-5 leads
GPT-5: 56.6 (#43), Mixtral 8x7B: 11.0 (#301)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| GPQA Diamond | 86.2% | 30.6% |
| MMLU-Pro | 86.3% | 33.5% |
| GPQA (HELM) | 79.2% | 29.6% |
| LMArena Expert | 1419 | 1088 |
| Humanity's Last Exam | 25.3% | — |
| SimpleQA Verified | 50.1% | — |
| Confabulations | 10.3% | — |
| Vectara Hallucination Rate | 14.7% | — |
| ARC (AI2) Challenge | — | 87.3% |
| MMLU | — | 70.6% |
| OpenBookQA | — | 85.8% |
| TriviaQA | — | 82.2% |
Multimodal Not comparable
GPT-5: 46.8 (#13), Mixtral 8x7B: —
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Vision | 1232 | — |
| GeoBench | 81% | — |
| VPCT | 66% | — |
Multilingual GPT-5 leads
GPT-5: 51.4 (#110), Mixtral 8x7B: 29.6 (#266)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Non-English | 1397 | 1077 |
| LMArena Chinese | 1422 | 1055 |
| LMArena French | 1410 | 1166 |
| LMArena German | 1416 | 1114 |
| LMArena Japanese | 1409 | 931 |
| LMArena Korean | 1360 | 968 |
| LMArena Russian | 1406 | 1090 |
| LMArena Spanish | 1399 | 1111 |
Instruction Following GPT-5 leads
GPT-5: 73.8 (#113), Mixtral 8x7B: 51.0 (#297)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| IFEval | 87.5% | 57.5% |
| LMArena Instruction Following | 1388 | 1109 |
Long Context GPT-5 leads
GPT-5: 69.5 (#2), Mixtral 8x7B: 33.4 (#260)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Longer Query | 1399 | 1103 |
| Fiction.LiveBench | 97.2% | — |
Writing & Preference GPT-5 leads
GPT-5: 63.4 (#65), Mixtral 8x7B: 34.2 (#270)
| Benchmark | GPT-5 | Mixtral 8x7B |
|---|---|---|
| LMArena Text | 1406 | 1132 |
| LMArena Creative Writing | 1365 | 1109 |
| WildBench | 85.7% | 67.3% |
| LMArena Multi-Turn | 1426 | 1115 |
| Short-Story Creative Writing | 86% | — |
| EQ-Bench Creative Writing | 1627 | — |
Frequently asked questions
Is GPT-5 better than Mixtral 8x7B?
GPT-5 is the stronger model overall, scoring 50.9 to 27.1 on the Noometry Index. Mixtral 8x7B costs 4.9× less per token, which makes it the better buy when GPT-5's lead doesn't matter for your workload.
Which is cheaper, GPT-5 or Mixtral 8x7B?
Mixtral 8x7B is cheaper. It lists at $0.70 per million input tokens and $0.70 per million output tokens; GPT-5 lists at $1.25 and $10.
Is GPT-5 or Mixtral 8x7B better for coding?
GPT-5 scores higher on coding benchmarks: 50.3 versus 32.8 in the Noometry coding category.
Which has the bigger context window?
GPT-5 does, with 400K tokens against 32K.
How many benchmarks do GPT-5 and Mixtral 8x7B share?
27 benchmarks have published results for both models. GPT-5 has 69 scored results on Noometry and Mixtral 8x7B has 38.