GPT-5.1 vs Mistral Large
OpenAI vs Mistral AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 39.3)
- •GPT-5.1 is cheaper ($1.25 vs $2.00 per 1M input)
- •GPT-5.1 has a larger context window (400K)
| GPT-5.1 | Mistral Large | |
|---|---|---|
| Intelligence index | 89 | 39.3 |
| Developer | OpenAI | Mistral AI |
| Type | LLM | LLM |
| Access | API only | API only |
| Context window | 400,000 tokens | 128,000 tokens |
| Input price | $1.25 / 1M | $2.00 / 1M |
| Output price | $10.00 / 1M | $6.00 / 1M |
| Speed | 115 tok/s | — |
| Released | November 12, 2025 | November 19, 2024 |
| Parameters | — | — |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
Shared benchmarks
GPT-5.1
Mistral Large
GPQA Diamond
88.1
35.1
Humanity’s Last Exam
26.5
3.4
LiveCodeBench
86.8
17.8
MMLU-Pro
87
51.5