Compare / Kimi K2 Thinking vs GPT-5.5
Kimi K2 Thinking vs GPT-5.5
9 results from 2 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Kimi K2 Thinking | GPT-5.5 |
|---|---|---|---|
| OpenHands Indexreported | Average% resolved | 41.0% | 65.9% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 32.4% | 38.2% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 12.5% | 43.8% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 43.6% | 86.1% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 69.2% | 78.2% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 47.3% | 83.4% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 20.0% | 13.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.38 | 0.41 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 59.3 | 69.7 |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.