Compare / Claude Opus 4.8 vs Kimi K2 Thinking
Claude Opus 4.8 vs Kimi K2 Thinking
16 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 4.8 | Kimi K2 Thinking |
|---|---|---|---|
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 41.8 | 22.0 |
| Artificial Analysisreported | GPQA Diamond% of questions | 92.0% | 83.8% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 48.7% | 23.8% |
| Artificial Analysisreported | IFBench% of instructions | 62.2% | 68.1% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 77.7% | 72.0% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 58.3% | 31.1% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 94.4% | 93.0% |
| OpenHands Indexreported | Average% resolved | 71.9% | 41.0% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 50.0% | 32.4% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 62.5% | 12.5% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 78.8% | 43.6% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 83.8% | 69.2% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 84.3% | 47.3% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 6.0% | 20.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.40 | 0.38 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 65.9 | 59.3 |
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.