Model comparison
Grok 3 vs Mistral Small 3
Grok 3 is the stronger model overall, scoring 39.9 to 31.2 on the Noometry Index.
Last verified . 21 shared benchmarks.
Mistral AISummary
- They share 21 benchmarks with published results for both. Grok 3 scores higher in 7 categories and Mistral Small 3 in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 3 leads 55.8 to 32.2.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 55.6% for Grok 3 and 6.7% for Mistral Small 3.
- Mistral Small 3 has downloadable open weights; the other is API-only.
Side by side
| Grok 3 | Mistral Small 3 | |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 39.9 | 31.2 |
| Released | 2025-04-09 | 2025-01-30 |
| Weights | Proprietary | Open |
| Context window | — | 33K |
| Max output | — | 16K |
| Input $ / M tokens | — | $0.05 |
| Output $ / M tokens | — | $0.08 |
| Results tracked | 40 | 24 |
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Category by category
Coding Grok 3 leads
Grok 3: 41.9 (#115), Mistral Small 3: 36.5 (#207)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Coding | 1432 | 1246 |
| Aider Polyglot | 53.3% | — |
| WeirdML | 37.2% | — |
| BigCodeBench Instruct | — | 45.3% |
| BigCodeBench Complete | — | 50.4% |
Agentic & Tool Use Not comparable
Grok 3: 30.5 (#76), Mistral Small 3: —
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| BALROG | 29.5% | — |
Reasoning Mistral Small 3 leads
Grok 3: 13.7 (#333), Mistral Small 3: 18.9 (#273)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Hard Prompts | 1434 | 1233 |
| Epoch Capabilities Index | 138.33 | 127.07 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 5.5% | — |
| Chess Puzzles | — | 0% |
Math Grok 3 leads
Grok 3: 38.0 (#145), Mistral Small 3: 16.3 (#295)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 55.6% | 6.7% |
| LMArena Math | 1391 | 1240 |
| Omni-MATH | 46.4% | — |
| MATH Level 5 | 88.7% | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Grok 3 leads
Grok 3: 46.2 (#82), Mistral Small 3: 25.1 (#263)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| GPQA Diamond | 75.8% | 47.3% |
| Confabulations | 14.2% | 25.2% |
| LMArena Expert | 1421 | 1202 |
| MMLU-Pro | 78.8% | — |
| Vectara Hallucination Rate | 5.8% | — |
| GPQA (HELM) | 65% | — |
Multilingual Grok 3 leads
Grok 3: 52.3 (#87), Mistral Small 3: 37.3 (#236)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Non-English | 1410 | 1198 |
| LMArena Chinese | 1448 | 1204 |
| LMArena French | 1460 | 1203 |
| LMArena German | 1431 | 1211 |
| LMArena Japanese | 1387 | 1111 |
| LMArena Korean | 1373 | 1188 |
| LMArena Russian | 1416 | 1216 |
| LMArena Spanish | 1417 | — |
Instruction Following Grok 3 leads
Grok 3: 75.0 (#73), Mistral Small 3: 63.7 (#229)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Instruction Following | 1409 | 1214 |
| IFEval | 88.4% | — |
Long Context Too close to call
Grok 3: 38.7 (#192), Mistral Small 3: 37.8 (#211)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Longer Query | 1439 | 1246 |
| Fiction.LiveBench | 58.3% | — |
Writing & Preference Grok 3 leads
Grok 3: 55.8 (#141), Mistral Small 3: 32.2 (#280)
| Benchmark | Grok 3 | Mistral Small 3 |
|---|---|---|
| LMArena Text | 1426 | 1234 |
| LMArena Creative Writing | 1414 | 1195 |
| EQ-Bench Creative Writing | 1186 | 707 |
| LMArena Multi-Turn | 1425 | 1217 |
| Short-Story Creative Writing | 76.4% | — |
| WildBench | 84.9% | — |
Frequently asked questions
Is Grok 3 better than Mistral Small 3?
Grok 3 is the stronger model overall, scoring 39.9 to 31.2 on the Noometry Index.
Is Grok 3 or Mistral Small 3 better for coding?
Grok 3 scores higher on coding benchmarks: 41.9 versus 36.5 in the Noometry coding category.
How many benchmarks do Grok 3 and Mistral Small 3 share?
21 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Mistral Small 3 has 24.