Model comparison
Kimi K2 Thinking Turbo vs Solar Pro4
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 42.1 on the Noometry Index.
Last verified . 18 shared benchmarks.
UpstageSummary
- They share 18 benchmarks with published results for both. Kimi K2 Thinking Turbo scores higher in 7 categories and Solar Pro4 in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2 Thinking Turbo leads 50.9 to 39.8.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.
Side by side
| Kimi K2 Thinking Turbo | Solar Pro4 | |
|---|---|---|
| Provider | Moonshot AI | Upstage |
| Noometry Index | 45.8 | 42.1 |
| Released | 2025-11-06 | 2026-08-06 |
| Weights | Open | Proprietary |
| Context window | — | 524K |
| Max output | — | 131K |
| Input $ / M tokens | — | $0.30 |
| Output $ / M tokens | — | $1.20 |
| Results tracked | 21 | 18 |
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Category by category
Coding Solar Pro4 leads
Kimi K2 Thinking Turbo: 38.4 (#178), Solar Pro4: 40.1 (#149)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena WebDev | 1322 | 1371 |
| LMArena Coding | 1454 | 1437 |
Reasoning Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 32.5 (#75), Solar Pro4: 28.5 (#104)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Hard Prompts | 1428 | 1399 |
| Chess Puzzles | 20% | — |
Math Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 47.4 (#68), Solar Pro4: 38.8 (#128)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Math | 1429 | 1416 |
| OTIS Mock AIME 2024-2025 | 83.1% | — |
Knowledge Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 50.9 (#69), Solar Pro4: 39.8 (#129)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Expert | 1439 | 1427 |
| GPQA Diamond | 84.2% | — |
Multilingual Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 51.4 (#109), Solar Pro4: 48.7 (#139)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Non-English | 1398 | 1361 |
| LMArena Chinese | 1456 | 1415 |
| LMArena French | 1425 | 1397 |
| LMArena German | 1390 | 1364 |
| LMArena Japanese | 1357 | 1309 |
| LMArena Korean | 1330 | 1382 |
| LMArena Russian | 1391 | 1360 |
| LMArena Spanish | 1406 | 1401 |
Instruction Following Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 74.0 (#109), Solar Pro4: 72.7 (#132)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | 1403 | 1377 |
Long Context Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 43.2 (#102), Solar Pro4: 42.1 (#130)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | 1415 | 1381 |
Writing & Preference Kimi K2 Thinking Turbo leads
Kimi K2 Thinking Turbo: 60.0 (#104), Solar Pro4: 56.5 (#138)
| Benchmark | Kimi K2 Thinking Turbo | Solar Pro4 |
|---|---|---|
| LMArena Text | 1415 | 1386 |
| LMArena Creative Writing | 1374 | 1316 |
| LMArena Multi-Turn | 1414 | 1385 |
Frequently asked questions
Is Kimi K2 Thinking Turbo better than Solar Pro4?
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.8 to 42.1 on the Noometry Index.
Is Kimi K2 Thinking Turbo or Solar Pro4 better for coding?
Solar Pro4 scores higher on coding benchmarks: 40.1 versus 38.4 in the Noometry coding category.
How many benchmarks do Kimi K2 Thinking Turbo and Solar Pro4 share?
18 benchmarks have published results for both models. Kimi K2 Thinking Turbo has 21 scored results on Noometry and Solar Pro4 has 18.