Model comparison
Mistral Large 3 vs Step 3
Step 3 is the stronger model overall, scoring 40.5 to 39.1 on the Noometry Index.
Last verified . 17 shared benchmarks.
Mistral AI
StepFunSummary
- They share 17 benchmarks with published results for both. Mistral Large 3 scores higher in 6 categories and Step 3 in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Step 3 leads 28.4 to 15.2.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 50.9% for Mistral Large 3 and 62.3% for Step 3.
Side by side
| Mistral Large 3 | Step 3 | |
|---|---|---|
| Provider | Mistral AI | StepFun |
| Noometry Index | 39.1 | 40.5 |
| Released | 2025-12-02 | — |
| Weights | Open | Open |
| Context window | 262K | — |
| Max output | 8K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $0.75 | — |
| Results tracked | 24 | 17 |
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Category by category
Coding Step 3 leads
Mistral Large 3: 34.4 (#237), Step 3: 40.1 (#147)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Coding | 1448 | 1367 |
| LMArena WebDev | 1230 | — |
Reasoning Step 3 leads
Mistral Large 3: 15.2 (#319), Step 3: 28.4 (#105)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| Kagi LLM Benchmark | 50.9% | 62.3% |
| LMArena Hard Prompts | 1429 | 1355 |
| NYT Connections (extended) | 7.5% | — |
| Thematic Generalization | 23% | — |
Math Mistral Large 3 leads
Mistral Large 3: 38.7 (#129), Step 3: 37.6 (#148)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Math | 1414 | 1366 |
Knowledge Too close to call
Mistral Large 3: 36.0 (#177), Step 3: 36.8 (#164)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Expert | 1421 | 1333 |
| Vectara Hallucination Rate | 14.5% | — |
Multimodal Mistral Large 3 leads
Mistral Large 3: 38.2 (#66), Step 3: 35.5 (#86)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Vision | 1221 | 1177 |
Multilingual Mistral Large 3 leads
Mistral Large 3: 52.5 (#84), Step 3: 46.3 (#159)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Non-English | 1413 | 1327 |
| LMArena Chinese | 1447 | 1397 |
| LMArena German | 1437 | 1371 |
| LMArena Korean | 1384 | 1269 |
| LMArena Russian | 1411 | 1331 |
| LMArena Spanish | 1440 | 1371 |
| LMArena French | 1455 | — |
| LMArena Japanese | 1394 | — |
Instruction Following Mistral Large 3 leads
Mistral Large 3: 74.0 (#108), Step 3: 70.4 (#164)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1332 |
Long Context Mistral Large 3 leads
Mistral Large 3: 43.1 (#105), Step 3: 40.3 (#157)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Longer Query | 1413 | 1326 |
Writing & Preference Mistral Large 3 leads
Mistral Large 3: 60.0 (#101), Step 3: 54.3 (#151)
| Benchmark | Mistral Large 3 | Step 3 |
|---|---|---|
| LMArena Text | 1428 | 1350 |
| LMArena Creative Writing | 1386 | 1321 |
| LMArena Multi-Turn | 1429 | 1341 |
| EQ-Bench Creative Writing | 1412 | — |
Frequently asked questions
Is Mistral Large 3 better than Step 3?
Step 3 is the stronger model overall, scoring 40.5 to 39.1 on the Noometry Index.
Is Mistral Large 3 or Step 3 better for coding?
Step 3 scores higher on coding benchmarks: 40.1 versus 34.4 in the Noometry coding category.
How many benchmarks do Mistral Large 3 and Step 3 share?
17 benchmarks have published results for both models. Mistral Large 3 has 24 scored results on Noometry and Step 3 has 17.