Model comparison
Kimi K2.5 Instant vs Qwen3.5 Max Preview
Qwen3.5 Max Preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index.
Last verified . 16 shared benchmarks.
Alibaba (Qwen)Summary
- They share 16 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 0 categories and Qwen3.5 Max Preview in 8 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Qwen3.5 Max Preview leads 66.0 to 60.6.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Kimi K2.5 Instant | Qwen3.5 Max Preview | |
|---|---|---|
| Provider | Moonshot AI | Alibaba (Qwen) |
| Noometry Index | 43.6 | 45.3 |
| Released | — | — |
| Weights | Open | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 18 | 17 |
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Category by category
Coding Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 42.6 (#97), Qwen3.5 Max Preview: 44.0 (#77)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Coding | 1484 | 1487 |
| LMArena WebDev | 1404 | — |
Reasoning Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 29.7 (#90), Qwen3.5 Max Preview: 30.8 (#84)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1483 |
Math Too close to call
Kimi K2.5 Instant: 39.4 (#105), Qwen3.5 Max Preview: 40.1 (#94)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Math | 1442 | 1474 |
Knowledge Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 40.2 (#123), Qwen3.5 Max Preview: 41.8 (#107)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Expert | 1440 | 1489 |
Multimodal Not comparable
Kimi K2.5 Instant: 40.2 (#50), Qwen3.5 Max Preview: —
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 52.0 (#94), Qwen3.5 Max Preview: 56.2 (#22)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Non-English | 1406 | 1465 |
| LMArena Chinese | 1449 | 1534 |
| LMArena French | 1403 | 1484 |
| LMArena German | 1413 | 1487 |
| LMArena Korean | 1378 | 1438 |
| LMArena Russian | 1404 | 1471 |
| LMArena Spanish | 1447 | 1470 |
| LMArena Japanese | — | 1495 |
Instruction Following Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 75.3 (#65), Qwen3.5 Max Preview: 77.0 (#31)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Instruction Following | 1430 | 1467 |
Long Context Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 43.9 (#83), Qwen3.5 Max Preview: 45.2 (#45)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Longer Query | 1435 | 1476 |
Writing & Preference Qwen3.5 Max Preview leads
Kimi K2.5 Instant: 60.6 (#95), Qwen3.5 Max Preview: 66.0 (#41)
| Benchmark | Kimi K2.5 Instant | Qwen3.5 Max Preview |
|---|---|---|
| LMArena Text | 1420 | 1470 |
| LMArena Creative Writing | 1381 | 1464 |
| LMArena Multi-Turn | 1427 | 1478 |
Frequently asked questions
Is Kimi K2.5 Instant better than Qwen3.5 Max Preview?
Qwen3.5 Max Preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index.
Is Kimi K2.5 Instant or Qwen3.5 Max Preview better for coding?
Qwen3.5 Max Preview scores higher on coding benchmarks: 44.0 versus 42.6 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and Qwen3.5 Max Preview share?
16 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Qwen3.5 Max Preview has 17.