Model comparison
Kimi K2.5 Instant vs Sonar
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 37.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in writing & preference, where Kimi K2.5 Instant leads 60.8 to 52.6.
- Kimi K2.5 Instant has downloadable open weights; the other is API-only.
Side by side
| Kimi K2.5 Instant | Sonar | |
|---|---|---|
| Provider | Moonshot AI | Perplexity |
| Noometry Index | 42.9 | 37.8 |
| Released | — | 2024-01-01 |
| Weights | Open | Proprietary |
| Context window | — | 128K |
| Max output | — | 4K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $1 |
| Results tracked | 18 | 7 |
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Category by category
Coding Kimi K2.5 Instant leads
Kimi K2.5 Instant: 42.3 (#95), Sonar: 35.1 (#217)
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena WebDev | 1404 | — |
| LiveBench Coding | — | 35.1% |
| LMArena Coding | 1483 | — |
Reasoning Kimi K2.5 Instant leads
Kimi K2.5 Instant: 28.5 (#88), Sonar: 20.3 (#221)
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LiveBench Reasoning | — | 46.3% |
| LMArena Hard Prompts | 1443 | — |
| LiveBench Data Analysis | — | 37.9% |
| LiveBench | — | 46.9% |
Math Kimi K2.5 Instant leads
Kimi K2.5 Instant: 36.6 (#105), Sonar: 31.3 (#197)
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LiveBench Math | — | 41.6% |
| LMArena Math | 1443 | — |
Knowledge Not comparable
Kimi K2.5 Instant: 39.5 (#121), Sonar: —
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena Expert | 1438 | — |
Multimodal Not comparable
Kimi K2.5 Instant: 39.5 (#47), Sonar: —
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena Vision | 1254 | — |
Multilingual Not comparable
Kimi K2.5 Instant: 52.2 (#89), Sonar: —
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena Non-English | 1406 | — |
| LMArena Chinese | 1450 | — |
| LMArena French | 1403 | — |
| LMArena German | 1413 | — |
| LMArena Korean | 1378 | — |
| LMArena Russian | 1404 | — |
| LMArena Spanish | 1448 | — |
Instruction Following Kimi K2.5 Instant leads
Kimi K2.5 Instant: 75.5 (#61), Sonar: 71.5 (#146)
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1430 | — |
Long Context Not comparable
Kimi K2.5 Instant: 43.8 (#82), Sonar: —
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena Longer Query | 1435 | — |
Writing & Preference Kimi K2.5 Instant leads
Kimi K2.5 Instant: 60.8 (#91), Sonar: 52.6 (#166)
| Benchmark | Kimi K2.5 Instant | Sonar |
|---|---|---|
| LMArena Text | 1420 | — |
| LMArena Creative Writing | 1379 | — |
| LMArena Multi-Turn | 1427 | — |
| LiveBench Language | — | 44.1% |
Frequently asked questions
Is Kimi K2.5 Instant better than Sonar?
Kimi K2.5 Instant is the stronger model overall, scoring 42.9 to 37.8 on the Noometry Index.
Is Kimi K2.5 Instant or Sonar better for coding?
Kimi K2.5 Instant scores higher on coding benchmarks: 42.3 versus 35.1 in the Noometry coding category.
How many benchmarks do Kimi K2.5 Instant and Sonar share?
0 benchmarks have published results for both models. Kimi K2.5 Instant has 18 scored results on Noometry and Sonar has 7.