Model comparison
Kimi K2.5 vs Magistral Medium
Kimi K2.5 is the stronger model overall, scoring 47.8 to 34.8 on the Noometry Index.
Last verified . 22 shared benchmarks.
Mistral AISummary
- They share 22 benchmarks with published results for both. Kimi K2.5 scores higher in 8 categories and Magistral Medium in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Kimi K2.5 leads 31.2 to 8.7.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 78.5% for Kimi K2.5 and 16.2% for Magistral Medium.
- Kimi K2.5 is cheaper at $0.45 / $2.25 per million input/output tokens, against $2 / $5 for Magistral Medium.
- Kimi K2.5 accepts more context: 262K tokens versus 128K.
Side by side
| Kimi K2.5 | Magistral Medium | |
|---|---|---|
| Provider | Moonshot AI | Mistral AI |
| Noometry Index | 47.8 | 34.8 |
| Released | 2026-01-27 | 2025-03-17 |
| Weights | Open | Open |
| Context window | 262K | 128K |
| Max output | 262K | 16K |
| Input $ / M tokens | $0.45 | $2 |
| Output $ / M tokens | $2.25 | $5 |
| Results tracked | 51 | 22 |
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Category by category
Coding Kimi K2.5 leads
Kimi K2.5: 48.7 (#48), Magistral Medium: 38.6 (#161)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| SciCode | 49% | 39.2% |
| LMArena Coding | 1474 | 1319 |
| SWE-bench Verified | 73.8% | — |
| SWE-bench Verified (bash only) | 70.8% | — |
| LMArena WebDev | 1436 | — |
| SWE-bench Multilingual | 67.3% | — |
| WeirdML | 45.6% | — |
| ALE-Bench | 821.65 | — |
Agentic & Tool Use Not comparable
Kimi K2.5: 34.0 (#44), Magistral Medium: —
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| Terminal-Bench | 43.2% | — |
| OSWorld | 63.3% | — |
| Vending-Bench 2 | 1,198 | — |
Reasoning Kimi K2.5 leads
Kimi K2.5: 31.2 (#74), Magistral Medium: 8.7 (#342)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| ARC-AGI-2 | 11.8% | 0% |
| Kagi LLM Benchmark | 78.5% | 16.2% |
| ARC-AGI-1 | 65.3% | 6.1% |
| CritPt | 3.1% | 0.3% |
| LMArena Hard Prompts | 1454 | 1267 |
| SimpleBench | 46.8% | — |
| NYT Connections (extended) | 69.9% | — |
| Chess Puzzles | 12% | — |
| EnigmaEval | 3.4% | — |
| Thematic Generalization | 69.4% | — |
| Epoch Capabilities Index | 148.05 | — |
Math Kimi K2.5 leads
Kimi K2.5: 50.3 (#46), Magistral Medium: 32.4 (#187)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Math | 1470 | 1249 |
| MathArena Final-Answer Competitions | 62.3% | — |
| OTIS Mock AIME 2024-2025 | 92.2% | — |
| FrontierMath (Feb 2025 set) | 27.9% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Kimi K2.5 leads
Kimi K2.5: 53.6 (#52), Magistral Medium: 32.9 (#199)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Expert | 1466 | 1222 |
| GPQA Diamond | 87.6% | — |
| Humanity's Last Exam | 24.4% | — |
| SimpleQA Verified | 34.3% | — |
| Vectara Hallucination Rate | 14.2% | — |
Multimodal Not comparable
Kimi K2.5: 40.4 (#37), Magistral Medium: —
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Vision | 1269 | — |
| LMArena Document | 1430 | — |
Multilingual Kimi K2.5 leads
Kimi K2.5: 54.1 (#50), Magistral Medium: 39.8 (#219)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Non-English | 1433 | 1232 |
| LMArena Chinese | 1495 | 1225 |
| LMArena French | 1454 | 1268 |
| LMArena German | 1441 | 1248 |
| LMArena Japanese | 1422 | 1176 |
| LMArena Korean | 1412 | 1125 |
| LMArena Russian | 1436 | 1224 |
| LMArena Spanish | 1450 | 1269 |
Instruction Following Kimi K2.5 leads
Kimi K2.5: 75.5 (#60), Magistral Medium: 66.2 (#207)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Instruction Following | 1431 | 1254 |
Long Context Kimi K2.5 leads
Kimi K2.5: 52.1 (#7), Magistral Medium: 39.3 (#178)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Longer Query | 1445 | 1295 |
| Fiction.LiveBench | 86.1% | — |
| CL-bench | 19.3% | — |
| CL-bench Life | 13.2% | — |
Writing & Preference Kimi K2.5 leads
Kimi K2.5: 65.3 (#51), Magistral Medium: 46.5 (#214)
| Benchmark | Kimi K2.5 | Magistral Medium |
|---|---|---|
| LMArena Text | 1445 | 1255 |
| LMArena Creative Writing | 1423 | 1245 |
| LMArena Multi-Turn | 1444 | 1275 |
| EQ-Bench Creative Writing | 1579 | — |
Frequently asked questions
Is Kimi K2.5 better than Magistral Medium?
Kimi K2.5 is the stronger model overall, scoring 47.8 to 34.8 on the Noometry Index.
Which is cheaper, Kimi K2.5 or Magistral Medium?
Kimi K2.5 is cheaper. It lists at $0.45 per million input tokens and $2.25 per million output tokens; Magistral Medium lists at $2 and $5.
Is Kimi K2.5 or Magistral Medium better for coding?
Kimi K2.5 scores higher on coding benchmarks: 48.7 versus 38.6 in the Noometry coding category.
Which has the bigger context window?
Kimi K2.5 does, with 262K tokens against 128K.
How many benchmarks do Kimi K2.5 and Magistral Medium share?
22 benchmarks have published results for both models. Kimi K2.5 has 51 scored results on Noometry and Magistral Medium has 22.