Model comparison
Hy4 preview vs Mistral Small 3.1
Hy4 preview is the stronger model overall, scoring 45.3 to 31.7 on the Noometry Index. Mistral Small 3.1 costs 3.1× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Tencent
Mistral AISummary
- The widest gap is in math, where Hy4 preview leads 55.7 to 14.7.
- Mistral Small 3.1 is cheaper at $0.35 / $0.56 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 128K.
Side by side
| Hy4 preview | Mistral Small 3.1 | |
|---|---|---|
| Provider | Tencent | Mistral AI |
| Noometry Index | 45.3 | 31.7 |
| Released | 2026-08-28 | 2025-03-17 |
| Weights | Open | Open |
| Context window | 1.05M | 128K |
| Max output | 64K | 102K |
| Input $ / M tokens | $0.83 | $0.35 |
| Output $ / M tokens | $2.50 | $0.56 |
| Results tracked | 3 | 28 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.6 (#38), Mistral Small 3.1: 38.3 (#179)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1309 |
Reasoning Hy4 preview leads
Hy4 preview: 31.9 (#79), Mistral Small 3.1: 19.7 (#254)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| Chess Puzzles | — | 1% |
| LMArena Hard Prompts | — | 1278 |
| Epoch Capabilities Index | — | 127.48 |
Math Hy4 preview leads
Hy4 preview: 55.7 (#42), Mistral Small 3.1: 14.7 (#301)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 3.9% |
| ProofBench | 75% | — |
| Omni-MATH | — | 24.8% |
| LMArena Math | — | 1262 |
Knowledge Not comparable
Hy4 preview: —, Mistral Small 3.1: 22.6 (#271)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| GPQA Diamond | — | 41.9% |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |
| LMArena Expert | — | 1257 |
Multimodal Not comparable
Hy4 preview: —, Mistral Small 3.1: 33.2 (#99)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |
Multilingual Not comparable
Hy4 preview: —, Mistral Small 3.1: 41.2 (#209)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | — | 1255 |
| LMArena Chinese | — | 1253 |
| LMArena French | — | 1273 |
| LMArena German | — | 1266 |
| LMArena Japanese | — | 1208 |
| LMArena Korean | — | 1206 |
| LMArena Russian | — | 1263 |
| LMArena Spanish | — | 1283 |
Instruction Following Not comparable
Hy4 preview: —, Mistral Small 3.1: 63.6 (#230)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| IFEval | — | 75% |
| LMArena Instruction Following | — | 1264 |
Long Context Not comparable
Hy4 preview: —, Mistral Small 3.1: 39.5 (#178)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | — | 1299 |
Writing & Preference Not comparable
Hy4 preview: —, Mistral Small 3.1: 37.0 (#259)
| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | — | 1277 |
| LMArena Creative Writing | — | 1253 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |
| LMArena Multi-Turn | — | 1270 |
Frequently asked questions
Is Hy4 preview better than Mistral Small 3.1?
Hy4 preview is the stronger model overall, scoring 45.3 to 31.7 on the Noometry Index. Mistral Small 3.1 costs 3.1× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Which is cheaper, Hy4 preview 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; Hy4 preview lists at $0.83 and $2.50.
Is Hy4 preview or Mistral Small 3.1 better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 38.3 in the Noometry coding category.
Which has the bigger context window?
Hy4 preview does, with 1.05M tokens against 128K.
How many benchmarks do Hy4 preview and Mistral Small 3.1 share?
0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Mistral Small 3.1 has 28.