Model comparison
DeepSeek-V3 vs Mistral Small 3.1
DeepSeek-V3 is the stronger model overall, scoring 39.5 to 31.7 on the Noometry Index.
Last verified . 26 shared benchmarks.
DeepSeek
Mistral AISummary
- They share 26 benchmarks with published results for both. DeepSeek-V3 scores higher in 7 categories and Mistral Small 3.1 in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where DeepSeek-V3 leads 57.4 to 37.0.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 37.8% for DeepSeek-V3 and 3.9% for Mistral Small 3.1.
- Both cost about the same: $0.24 input and $0.90 output per million tokens.
- DeepSeek-V3 accepts more context: 164K tokens versus 128K.
Side by side
| DeepSeek-V3 | Mistral Small 3.1 | |
|---|---|---|
| Provider | DeepSeek | Mistral AI |
| Noometry Index | 39.5 | 31.7 |
| Released | 2024-12-26 | 2025-03-17 |
| Weights | Open | Open |
| Context window | 164K | 128K |
| Max output | 164K | 102K |
| Input $ / M tokens | $0.24 | $0.35 |
| Output $ / M tokens | $0.90 | $0.56 |
| Results tracked | 60 | 28 |
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Category by category
Coding DeepSeek-V3 leads
DeepSeek-V3: 42.3 (#106), Mistral Small 3.1: 38.3 (#179)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1368 | 1309 |
| Aider Polyglot | 55.1% | — |
| SciCode | 35.8% | — |
| WeirdML | 36.1% | — |
| BigCodeBench Instruct | 50% | — |
| LiveBench Coding | 70.9% | — |
| BigCodeBench Complete | 62.2% | — |
| HumanEval+ | 86.6% | — |
| MBPP+ | 73% | — |
Agentic & Tool Use Not comparable
DeepSeek-V3: —, Mistral Small 3.1: —
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| METR Time Horizons | 49.6% | — |
Reasoning Too close to call
DeepSeek-V3: 20.5 (#236), Mistral Small 3.1: 19.7 (#254)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1365 | 1278 |
| Epoch Capabilities Index | 135.94 | 127.48 |
| SimpleBench | 27.2% | — |
| Kagi LLM Benchmark | 52.3% | — |
| CritPt | 0% | — |
| Chess Puzzles | — | 1% |
| LiveBench Reasoning | 65.8% | — |
| DTBench | 64.8% | — |
| LiveBench Data Analysis | 60.9% | — |
| LMCA | 15.5% | — |
| BIG-Bench Hard | 87.5% | — |
| ForecastBench | 59.1 | — |
| HellaSwag | 88.9% | — |
| LiveBench | 66.9% | — |
| PIQA | 84.7% | — |
| WinoGrande | 85.2% | — |
Math DeepSeek-V3 leads
DeepSeek-V3: 32.1 (#219), Mistral Small 3.1: 14.7 (#301)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 37.8% | 3.9% |
| Omni-MATH | 40.3% | 24.8% |
| LMArena Math | 1373 | 1262 |
| LiveBench Math | 73.5% | — |
| MATH Level 5 | 75.5% | — |
| FrontierMath (Feb 2025 set) | 1.7% | — |
Knowledge DeepSeek-V3 leads
DeepSeek-V3: 37.5 (#155), Mistral Small 3.1: 22.6 (#271)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| GPQA Diamond | 67.6% | 41.9% |
| MMLU-Pro | 72.3% | 61% |
| GPQA (HELM) | 53.8% | 39.2% |
| LMArena Expert | 1351 | 1257 |
| Confabulations | 26.1% | — |
| Vectara Hallucination Rate | 6.1% | — |
| ARC (AI2) Challenge | 95.3% | — |
| MMLU | 87.2% | — |
| TriviaQA | 82.9% | — |
Multimodal Not comparable
DeepSeek-V3: —, Mistral Small 3.1: 33.2 (#99)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |
Multilingual DeepSeek-V3 leads
DeepSeek-V3: 48.5 (#143), Mistral Small 3.1: 41.2 (#209)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1358 | 1255 |
| LMArena Chinese | 1391 | 1253 |
| LMArena French | 1385 | 1273 |
| LMArena German | 1374 | 1266 |
| LMArena Japanese | 1333 | 1208 |
| LMArena Korean | 1319 | 1206 |
| LMArena Russian | 1373 | 1263 |
| LMArena Spanish | 1358 | 1283 |
Instruction Following DeepSeek-V3 leads
DeepSeek-V3: 72.8 (#130), Mistral Small 3.1: 63.6 (#230)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| IFEval | 83.2% | 75% |
| LMArena Instruction Following | 1345 | 1264 |
| LiveBench Instruction Following | 81.5% | — |
Long Context Mistral Small 3.1 leads
DeepSeek-V3: 34.0 (#253), Mistral Small 3.1: 39.5 (#178)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1352 | 1299 |
| Fiction.LiveBench | 50% | — |
Writing & Preference DeepSeek-V3 leads
DeepSeek-V3: 57.4 (#130), Mistral Small 3.1: 37.0 (#259)
| Benchmark | DeepSeek-V3 | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1375 | 1277 |
| LMArena Creative Writing | 1364 | 1253 |
| EQ-Bench Creative Writing | 1472 | 761 |
| WildBench | 83% | 78.8% |
| LMArena Multi-Turn | 1389 | 1270 |
| Short-Story Creative Writing | 77% | — |
| LiveBench Language | 49.1% | — |
Frequently asked questions
Is DeepSeek-V3 better than Mistral Small 3.1?
DeepSeek-V3 is the stronger model overall, scoring 39.5 to 31.7 on the Noometry Index.
Which is cheaper, DeepSeek-V3 or Mistral Small 3.1?
Mistral Small 3.1 is cheaper. It lists at $0.35 per million input tokens and $0.56 per million output tokens; DeepSeek-V3 lists at $0.24 and $0.90.
Is DeepSeek-V3 or Mistral Small 3.1 better for coding?
DeepSeek-V3 scores higher on coding benchmarks: 42.3 versus 38.3 in the Noometry coding category.
Which has the bigger context window?
DeepSeek-V3 does, with 164K tokens against 128K.
How many benchmarks do DeepSeek-V3 and Mistral Small 3.1 share?
26 benchmarks have published results for both models. DeepSeek-V3 has 60 scored results on Noometry and Mistral Small 3.1 has 28.