Model comparison
Devstral Small 2505 vs Kimi K2.5 Instant
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 34.3 on the Noometry Index.
Last verified . 0 shared benchmarks.
Mistral AISummary
- The widest gap is in reasoning, where Kimi K2.5 Instant leads 29.7 to 19.7.
Side by side
| Devstral Small 2505 | Kimi K2.5 Instant | |
|---|---|---|
| Provider | Mistral AI | Moonshot AI |
| Noometry Index | 34.3 | 43.6 |
| Released | 2025-05-07 | — |
| Weights | Open | Open |
| Context window | 128K | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.30 | — |
| Results tracked | 4 | 18 |
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Category by category
Coding Kimi K2.5 Instant leads
Devstral Small 2505: 38.9 (#166), Kimi K2.5 Instant: 42.6 (#97)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| SWE-bench Verified (bash only) | 56.4% | — |
| LMArena WebDev | — | 1404 |
| SciCode | 28.8% | — |
| LMArena Coding | — | 1484 |
Reasoning Kimi K2.5 Instant leads
Devstral Small 2505: 19.7 (#252), Kimi K2.5 Instant: 29.7 (#90)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| Kagi LLM Benchmark | 37.7% | — |
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1443 |
Math Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 39.4 (#105)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Math | — | 1442 |
Knowledge Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 40.2 (#123)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Expert | — | 1440 |
Multimodal Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 40.2 (#50)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Vision | — | 1254 |
Multilingual Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 52.0 (#94)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Non-English | — | 1406 |
| LMArena Chinese | — | 1449 |
| LMArena French | — | 1403 |
| LMArena German | — | 1413 |
| LMArena Korean | — | 1378 |
| LMArena Russian | — | 1404 |
| LMArena Spanish | — | 1447 |
Instruction Following Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 75.3 (#65)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Instruction Following | — | 1430 |
Long Context Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 43.9 (#83)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Longer Query | — | 1435 |
Writing & Preference Not comparable
Devstral Small 2505: —, Kimi K2.5 Instant: 60.6 (#95)
| Benchmark | Devstral Small 2505 | Kimi K2.5 Instant |
|---|---|---|
| LMArena Text | — | 1420 |
| LMArena Creative Writing | — | 1381 |
| LMArena Multi-Turn | — | 1427 |
Frequently asked questions
Is Devstral Small 2505 better than Kimi K2.5 Instant?
Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 34.3 on the Noometry Index.
Is Devstral Small 2505 or Kimi K2.5 Instant better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 38.9 in the Noometry coding category.
How many benchmarks do Devstral Small 2505 and Kimi K2.5 Instant share?
0 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Kimi K2.5 Instant has 18.