Model comparison
Chatgpt 4o Latest 20250326 vs Kimi K2 Thinking Turbo
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.4 to 43.2 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Chatgpt 4o Latest 20250326 scores higher in 5 categories and Kimi K2 Thinking Turbo in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Kimi K2 Thinking Turbo leads 50.9 to 38.7.
- Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.
Side by side
| Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo | |
|---|---|---|
| Provider | OpenAI | Moonshot AI |
| Noometry Index | 43.2 | 45.4 |
| Released | — | 2025-11-06 |
| Weights | Proprietary | Open |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 21 | 21 |
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Category by category
Coding Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 41.0 (#122), Kimi K2 Thinking Turbo: 38.1 (#166)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Coding | 1413 | 1454 |
| LMArena WebDev | — | 1322 |
Reasoning Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 32.8 (#64), Kimi K2 Thinking Turbo: 31.4 (#72)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Hard Prompts | 1424 | 1428 |
| Kagi LLM Benchmark | 75% | — |
| Chess Puzzles | — | 20% |
Math Kimi K2 Thinking Turbo leads
Chatgpt 4o Latest 20250326: 35.8 (#134), Kimi K2 Thinking Turbo: 45.5 (#62)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Math | 1407 | 1429 |
| OTIS Mock AIME 2024-2025 | — | 83.1% |
Knowledge Kimi K2 Thinking Turbo leads
Chatgpt 4o Latest 20250326: 38.7 (#131), Kimi K2 Thinking Turbo: 50.9 (#64)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Expert | 1400 | 1439 |
| GPQA Diamond | — | 84.2% |
| Confabulations | 16.6% | — |
Multimodal Not comparable
Chatgpt 4o Latest 20250326: 38.9 (#54), Kimi K2 Thinking Turbo: —
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Vision | 1243 | — |
Multilingual Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 53.1 (#72), Kimi K2 Thinking Turbo: 51.6 (#104)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Non-English | 1419 | 1398 |
| LMArena Chinese | 1456 | 1457 |
| LMArena French | 1447 | 1425 |
| LMArena German | 1424 | 1390 |
| LMArena Japanese | 1406 | 1356 |
| LMArena Korean | 1397 | 1329 |
| LMArena Russian | 1429 | 1390 |
| LMArena Spanish | 1435 | 1407 |
Instruction Following Too close to call
Chatgpt 4o Latest 20250326: 74.2 (#102), Kimi K2 Thinking Turbo: 74.2 (#103)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Instruction Following | 1403 | 1403 |
Long Context Too close to call
Chatgpt 4o Latest 20250326: 43.1 (#104), Kimi K2 Thinking Turbo: 43.2 (#99)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Longer Query | 1413 | 1415 |
Writing & Preference Chatgpt 4o Latest 20250326 leads
Chatgpt 4o Latest 20250326: 62.8 (#68), Kimi K2 Thinking Turbo: 60.2 (#99)
| Benchmark | Chatgpt 4o Latest 20250326 | Kimi K2 Thinking Turbo |
|---|---|---|
| LMArena Text | 1429 | 1415 |
| LMArena Creative Writing | 1406 | 1373 |
| LMArena Multi-Turn | 1454 | 1414 |
| EQ-Bench Creative Writing | 1501 | — |
Frequently asked questions
Is Chatgpt 4o Latest 20250326 better than Kimi K2 Thinking Turbo?
Kimi K2 Thinking Turbo is the stronger model overall, scoring 45.4 to 43.2 on the Noometry Index.
Is Chatgpt 4o Latest 20250326 or Kimi K2 Thinking Turbo better for coding?
Chatgpt 4o Latest 20250326 scores higher on coding benchmarks: 41.0 versus 38.1 in the Noometry coding category.
How many benchmarks do Chatgpt 4o Latest 20250326 and Kimi K2 Thinking Turbo share?
17 benchmarks have published results for both models. Chatgpt 4o Latest 20250326 has 21 scored results on Noometry and Kimi K2 Thinking Turbo has 21.