Model comparison
Mistral Small 3.1 vs Yi-1.5-34B
Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 30.6 on the Noometry Index.
Last verified . 18 shared benchmarks.
Mistral AISummary
- They share 18 benchmarks with published results for both. Mistral Small 3.1 scores higher in 5 categories and Yi-1.5-34B in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where Yi-1.5-34B leads 27.5 to 14.7.
- The biggest single-benchmark swing is GPQA Diamond: 41.9% for Mistral Small 3.1 and 32% for Yi-1.5-34B.
Side by side
| Mistral Small 3.1 | Yi-1.5-34B | |
|---|---|---|
| Provider | Mistral AI | 01.AI |
| Noometry Index | 31.7 | 30.6 |
| Released | 2025-03-17 | 2024-05-13 |
| Weights | Open | Open |
| Context window | 128K | — |
| Max output | 102K | — |
| Input $ / M tokens | $0.35 | — |
| Output $ / M tokens | $0.56 | — |
| Results tracked | 28 | 21 |
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Category by category
Coding Mistral Small 3.1 leads
Mistral Small 3.1: 38.3 (#179), Yi-1.5-34B: 32.4 (#272)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Coding | 1309 | 1169 |
| BigCodeBench Instruct | — | 33.9% |
| BigCodeBench Complete | — | 43.8% |
Reasoning Yi-1.5-34B leads
Mistral Small 3.1: 19.7 (#254), Yi-1.5-34B: 22.5 (#191)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Hard Prompts | 1278 | 1160 |
| Chess Puzzles | 1% | — |
| Epoch Capabilities Index | 127.48 | — |
Math Yi-1.5-34B leads
Mistral Small 3.1: 14.7 (#301), Yi-1.5-34B: 27.5 (#249)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Math | 1262 | 1182 |
| OTIS Mock AIME 2024-2025 | 3.9% | — |
| Omni-MATH | 24.8% | — |
| MATH Level 5 | — | 25.5% |
Knowledge Mistral Small 3.1 leads
Mistral Small 3.1: 22.6 (#271), Yi-1.5-34B: 14.8 (#295)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | 41.9% | 32% |
| LMArena Expert | 1257 | 1144 |
| MMLU-Pro | 61% | — |
| GPQA (HELM) | 39.2% | — |
Multimodal Not comparable
Mistral Small 3.1: 33.2 (#99), Yi-1.5-34B: —
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Vision | 1136 | — |
Multilingual Mistral Small 3.1 leads
Mistral Small 3.1: 41.2 (#209), Yi-1.5-34B: 32.3 (#256)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | 1255 | 1121 |
| LMArena Chinese | 1253 | 1213 |
| LMArena French | 1273 | 1156 |
| LMArena German | 1266 | 1111 |
| LMArena Japanese | 1208 | 1021 |
| LMArena Korean | 1206 | 1005 |
| LMArena Russian | 1263 | 1091 |
| LMArena Spanish | 1283 | 1121 |
Instruction Following Mistral Small 3.1 leads
Mistral Small 3.1: 63.6 (#230), Yi-1.5-34B: 59.2 (#257)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | 1264 | 1139 |
| IFEval | 75% | — |
Long Context Mistral Small 3.1 leads
Mistral Small 3.1: 39.5 (#178), Yi-1.5-34B: 34.6 (#248)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | 1299 | 1143 |
Writing & Preference Too close to call
Mistral Small 3.1: 37.0 (#259), Yi-1.5-34B: 37.4 (#257)
| Benchmark | Mistral Small 3.1 | Yi-1.5-34B |
|---|---|---|
| LMArena Text | 1277 | 1173 |
| LMArena Creative Writing | 1253 | 1135 |
| LMArena Multi-Turn | 1270 | 1153 |
| EQ-Bench Creative Writing | 761 | — |
| WildBench | 78.8% | — |
Frequently asked questions
Is Mistral Small 3.1 better than Yi-1.5-34B?
Mistral Small 3.1 is the stronger model overall, scoring 31.7 to 30.6 on the Noometry Index.
Is Mistral Small 3.1 or Yi-1.5-34B better for coding?
Mistral Small 3.1 scores higher on coding benchmarks: 38.3 versus 32.4 in the Noometry coding category.
How many benchmarks do Mistral Small 3.1 and Yi-1.5-34B share?
18 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and Yi-1.5-34B has 21.