Model comparison
Kimi K2.5 Instant vs MiMo-V2-Flash
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 40.8 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Kimi K2.5 Instant scores higher in 8 categories and MiMo-V2-Flash in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in coding, where Kimi K2.5 Instant leads 42.3 to 35.8.
Side by side
| Kimi K2.5 Instant | MiMo-V2-Flash | |
|---|---|---|
| Provider | Moonshot AI | Xiaomi |
| Noometry Index | 42.9 | 40.8 |
| Released | — | 2025-12-16 |
| Weights | Open | Open |
| Context window | — | 262K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.14 |
| Output $ / M tokens | — | $0.28 |
| Results tracked | 18 | 21 |
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Category by category
Coding Kimi K2.5 Instant leads
Kimi K2.5 Instant: 42.3 (#95), MiMo-V2-Flash: 35.8 (#205)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena WebDev | 1404 | 1330 |
| LMArena Coding | 1483 | 1443 |
| SciCode | — | 25.9% |
| ALE-Bench | — | 737.95 |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 28.5 (#88), MiMo-V2-Flash: 24.1 (#155)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Hard Prompts | 1443 | 1420 |
| CritPt | — | 0% |
Math Kimi K2.5 Instant leads
Kimi K2.5 Instant: 36.6 (#105), MiMo-V2-Flash: 35.6 (#141)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Math | 1443 | 1396 |
Knowledge Too close to call
Kimi K2.5 Instant: 39.5 (#121), MiMo-V2-Flash: 39.1 (#126)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Expert | 1438 | 1425 |
Multimodal Not comparable
Kimi K2.5 Instant: 39.5 (#47), MiMo-V2-Flash: —
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Kimi K2.5 Instant leads
Kimi K2.5 Instant: 52.2 (#89), MiMo-V2-Flash: 51.1 (#109)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Non-English | 1406 | 1391 |
| LMArena Chinese | 1450 | 1463 |
| LMArena French | 1403 | 1429 |
| LMArena German | 1413 | 1395 |
| LMArena Korean | 1378 | 1358 |
| LMArena Russian | 1404 | 1387 |
| LMArena Spanish | 1448 | 1420 |
| LMArena Japanese | — | 1324 |
Instruction Following Kimi K2.5 Instant leads
Kimi K2.5 Instant: 75.5 (#61), MiMo-V2-Flash: 73.7 (#115)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Instruction Following | 1430 | 1392 |
Long Context Too close to call
Kimi K2.5 Instant: 43.8 (#82), MiMo-V2-Flash: 43.0 (#106)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Longer Query | 1435 | 1409 |
Writing & Preference Too close to call
Kimi K2.5 Instant: 60.8 (#91), MiMo-V2-Flash: 59.9 (#101)
| Benchmark | Kimi K2.5 Instant | MiMo-V2-Flash |
|---|---|---|
| LMArena Text | 1420 | 1411 |
| LMArena Creative Writing | 1379 | 1375 |
| LMArena Multi-Turn | 1427 | 1404 |
Frequently asked questions
Is Kimi K2.5 Instant better than MiMo-V2-Flash?
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 40.8 on the Noometry Index.
Is Kimi K2.5 Instant or MiMo-V2-Flash better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.3 versus 35.8 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and MiMo-V2-Flash share?
17 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and MiMo-V2-Flash has 21.