Model comparison
Longcat Flash Chat vs Mistral Small 3.1
Longcat Flash Chat is the stronger model overall, scoring 42.1 to 31.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Mistral AISummary
- They share 17 benchmarks with published results for both. Longcat Flash Chat 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 math, where Longcat Flash Chat leads 39.4 to 14.7.
Side by side
| Longcat Flash Chat | Mistral Small 3.1 | |
|---|---|---|
| Provider | Meituan | Mistral AI |
| Noometry Index | 42.1 | 31.7 |
| Released | — | 2025-03-17 |
| Weights | Open | Open |
| Context window | — | 128K |
| Max output | — | 102K |
| Input $ / M tokens | — | $0.35 |
| Output $ / M tokens | — | $0.56 |
| Results tracked | 19 | 28 |
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Category by category
Coding Longcat Flash Chat leads
Longcat Flash Chat: 43.5 (#87), Mistral Small 3.1: 38.3 (#179)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Coding | 1471 | 1309 |
Reasoning Too close to call
Longcat Flash Chat: 19.0 (#272), Mistral Small 3.1: 19.7 (#254)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Hard Prompts | 1440 | 1278 |
| Kagi LLM Benchmark | 43.9% | — |
| NYT Connections (extended) | 17.7% | — |
| Chess Puzzles | — | 1% |
| Epoch Capabilities Index | — | 127.48 |
Math Longcat Flash Chat leads
Longcat Flash Chat: 39.4 (#107), Mistral Small 3.1: 14.7 (#301)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Math | 1442 | 1262 |
| OTIS Mock AIME 2024-2025 | — | 3.9% |
| Omni-MATH | — | 24.8% |
Knowledge Longcat Flash Chat leads
Longcat Flash Chat: 40.6 (#116), Mistral Small 3.1: 22.6 (#271)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Expert | 1454 | 1257 |
| GPQA Diamond | — | 41.9% |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |
Multimodal Not comparable
Longcat Flash Chat: —, Mistral Small 3.1: 33.2 (#99)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |
Multilingual Longcat Flash Chat leads
Longcat Flash Chat: 51.9 (#101), Mistral Small 3.1: 41.2 (#209)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | 1404 | 1255 |
| LMArena Chinese | 1465 | 1253 |
| LMArena French | 1456 | 1273 |
| LMArena German | 1408 | 1266 |
| LMArena Japanese | 1373 | 1208 |
| LMArena Korean | 1371 | 1206 |
| LMArena Russian | 1395 | 1263 |
| LMArena Spanish | 1445 | 1283 |
Instruction Following Longcat Flash Chat leads
Longcat Flash Chat: 74.4 (#96), Mistral Small 3.1: 63.6 (#230)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Instruction Following | 1411 | 1264 |
| IFEval | — | 75% |
Long Context Longcat Flash Chat leads
Longcat Flash Chat: 43.5 (#93), Mistral Small 3.1: 39.5 (#178)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | 1425 | 1299 |
Writing & Preference Longcat Flash Chat leads
Longcat Flash Chat: 61.0 (#91), Mistral Small 3.1: 37.0 (#259)
| Benchmark | Longcat Flash Chat | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | 1427 | 1277 |
| LMArena Creative Writing | 1388 | 1253 |
| LMArena Multi-Turn | 1418 | 1270 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |
Frequently asked questions
Is Longcat Flash Chat better than Mistral Small 3.1?
Longcat Flash Chat is the stronger model overall, scoring 42.1 to 31.7 on the Noometry Index.
Is Longcat Flash Chat or Mistral Small 3.1 better for coding?
Longcat Flash Chat scores higher on coding benchmarks: 43.5 versus 38.3 in the Noometry coding category.
How many benchmarks do Longcat Flash Chat and Mistral Small 3.1 share?
17 benchmarks have published results for both models. Longcat Flash Chat has 19 scored results on Noometry and Mistral Small 3.1 has 28.