Model comparison
GPT-5 Pro vs Kimi K2 Thinking Turbo
GPT-5 Pro and Kimi K2 Thinking Turbo score almost the same on the Noometry Index (46.2 vs 45.4), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where GPT-5 Pro leads 39.2 to 31.4.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.
Side by side
| GPT-5 Pro | Kimi K2 Thinking Turbo | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 46.2 | 45.4 |
| Released | 2025-10-06 | 2025-11-06 |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 272K | — |
| Input $ / M tokens | $15 | — |
| Output $ / M tokens | $120 | — |
| Results tracked | 12 | 21 |
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Category by category
Coding GPT-5 Pro leads
GPT-5 Pro: 43.4 (#77), Kimi K2 Thinking Turbo: 38.1 (#166)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena WebDev | — | 1322 |
| WeirdML | 60.4% | — |
| LMArena Coding | — | 1454 |
| AlgoTune | 1.31 | — |
Reasoning GPT-5 Pro leads
GPT-5 Pro: 39.2 (#52), Kimi K2 Thinking Turbo: 31.4 (#72)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| ARC-AGI-2 | 18.3% | — |
| SimpleBench | 61.6% | — |
| Kagi LLM Benchmark | 76.8% | — |
| ARC-AGI-1 | 70.2% | — |
| Chess Puzzles | — | 20% |
| EnigmaEval | 18.8% | — |
| LMArena Hard Prompts | — | 1428 |
| Epoch Capabilities Index | 150.26 | — |
Math GPT-5 Pro leads
GPT-5 Pro: 48.0 (#53), Kimi K2 Thinking Turbo: 45.5 (#62)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| FrontierMath (Tiers 1-3) | 55.8% | — |
| FrontierMath Tier 4 | 19.5% | — |
| OTIS Mock AIME 2024-2025 | — | 83.1% |
| LMArena Math | — | 1429 |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge GPT-5 Pro leads
GPT-5 Pro: 56.2 (#39), Kimi K2 Thinking Turbo: 50.9 (#64)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| GPQA Diamond | — | 84.2% |
| Humanity's Last Exam | 31.6% | — |
| LMArena Expert | — | 1439 |
Multilingual Not comparable
GPT-5 Pro: —, Kimi K2 Thinking Turbo: 51.6 (#104)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Non-English | — | 1398 |
| LMArena Chinese | — | 1457 |
| LMArena French | — | 1425 |
| LMArena German | — | 1390 |
| LMArena Japanese | — | 1356 |
| LMArena Korean | — | 1329 |
| LMArena Russian | — | 1390 |
| LMArena Spanish | — | 1407 |
Instruction Following Not comparable
GPT-5 Pro: —, Kimi K2 Thinking Turbo: 74.2 (#103)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Instruction Following | — | 1403 |
Long Context Not comparable
GPT-5 Pro: —, Kimi K2 Thinking Turbo: 43.2 (#99)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Longer Query | — | 1415 |
Writing & Preference Not comparable
GPT-5 Pro: —, Kimi K2 Thinking Turbo: 60.2 (#99)
| Benchmark | GPT-5 Pro | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Text | — | 1415 |
| LMArena Creative Writing | — | 1373 |
| LMArena Multi-Turn | — | 1414 |
Frequently asked questions
Is GPT-5 Pro better than Kimi K2 Thinking Turbo?
GPT-5 Pro and Kimi K2 Thinking Turbo score almost the same on the Noometry Index (46.2 vs 45.4), so choose on price, context window or the category you care about most.
Is GPT-5 Pro or Kimi K2 Thinking Turbo better for coding?
GPT-5 Pro scores higher on coding benchmarks: 43.4 versus 38.1 in the Noometry coding category.
How many benchmarks do GPT-5 Pro and Kimi K2 Thinking Turbo share?
0 benchmarks have published results for both models. GPT-5 Pro has 12 scored results on Noometry and Kimi K2 Thinking Turbo has 21.