DeepSeek V4 Flash 0731 vs Mistral Large 3 2512
DeepSeek V4 Flash 0731 vs Mistral Large 3 2512: which AI model is cheaper, has the larger context window and more capabilities? Side-by-side comparison updated daily.
Quick verdict
- DeepSeek V4 Flash 0731 is 8.0× cheaper than Mistral Large 3 2512 for the same mix of input and output tokens.
- DeepSeek V4 Flash 0731 has the larger context window (1M), useful for long documents and big codebases.
- DeepSeek V4 Flash 0731 is the more recent release (Jul 31, 2026).
- Only DeepSeek V4 Flash 0731 supports extended reasoning.
- Only DeepSeek V4 Flash 0731 has openly published weights you can run yourself.
- Only Mistral Large 3 2512 accepts images as input.
- DeepSeek V4 Flash 0731 scores higher on independent tests (overall index 154.5 vs 122.0).
- DeepSeek V4 Flash 0731 is both cheaper and better rated: for most uses it is the better choice.
| DeepSeek V4 Flash 0731 | Mistral Large 3 2512 | |
|---|---|---|
| Company | DeepSeek | Mistral AI |
| Released | Jul 31, 2026 ● | Dec 1, 2025 |
| Overall index | 154.5 ● | 122.0 |
| GPQA Diamond | 91.0% ● | 51.3% |
| AIME math | 94.4% ● | 8.5% |
| FrontierMath | 57.5% | — |
| SimpleQA Verified | 33.6% | — |
| Input (per 1M tokens) | $0.018 ● | $0.50 |
| Output (per 1M tokens) | $0.32 ● | $1.50 |
| Cost for 1M input + 1M output tokens | $0.338 ● | $2.00 |
| Providers | 30 ● | 2 |
| Context | 1M ● | 256K |
| Max output | 944K ● | 210K |
| Inputs | Text | Text, Image, Files ● |
| Outputs | Text | Text |
| Reasoning | ✓ | — |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Open weights | ✓ | — |
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