Model comparison
Kimi K2.5 Instant vs Mistral Medium 3.1
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Mistral AISummary
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 28.5 to 10.1.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Kimi K2.5 Instant | Mistral Medium 3.1 | |
|---|---|---|
| Provider | Moonshot AI | Mistral AI |
| Noometry Index | 42.9 | 31.5 |
| Released | — | — |
| Weights | Open | Proprietary |
| Context window | — | 131K |
| Max output | — | 105K |
| Input $ / M tokens | — | $0.40 |
| Output $ / M tokens | — | $2 |
| Results tracked | 18 | 3 |
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Category by category
Coding Not comparable
Kimi K2.5 Instant: 42.3 (#95), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena WebDev | 1404 | — |
| LMArena Coding | 1483 | — |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 28.5 (#88), Mistral Medium 3.1: 10.1 (#336)
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| NYT Connections (extended) | — | 6.5% |
| Thematic Generalization | — | 20.3% |
| LMArena Hard Prompts | 1443 | — |
Math Not comparable
Kimi K2.5 Instant: 36.6 (#105), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Math | 1443 | — |
Knowledge Not comparable
Kimi K2.5 Instant: 39.5 (#121), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Expert | 1438 | — |
Multimodal Not comparable
Kimi K2.5 Instant: 39.5 (#47), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Not comparable
Kimi K2.5 Instant: 52.2 (#89), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1406 | — |
| LMArena Chinese | 1450 | — |
| LMArena French | 1403 | — |
| LMArena German | 1413 | — |
| LMArena Korean | 1378 | — |
| LMArena Russian | 1404 | — |
| LMArena Spanish | 1448 | — |
Instruction Following Not comparable
Kimi K2.5 Instant: 75.5 (#61), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Instruction Following | 1430 | — |
Long Context Not comparable
Kimi K2.5 Instant: 43.8 (#82), Mistral Medium 3.1: —
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Longer Query | 1435 | — |
Writing & Preference Kimi K2.5 Instant leads
Kimi K2.5 Instant: 60.8 (#91), Mistral Medium 3.1: 55.6 (#140)
| Benchmark | Kimi K2.5 Instant | Mistral Medium 3.1 |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1379 | — |
| EQ-Bench Creative Writing | — | 1476 |
| LMArena Multi-Turn | 1427 | — |
Frequently asked questions
Is Kimi K2.5 Instant better than Mistral Medium 3.1?
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 31.5 on the Noometry Index.
How many benchmarks do Kimi K2.5 Instant and Mistral Medium 3.1 share?
0 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Mistral Medium 3.1 has 3.