Compare / Claude Sonnet 5.5 vs GPT-5.4 Nano
Claude Sonnet 5.5 vs GPT-5.4 Nano
11 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 Sonnet 5.5 | GPT-5.4 Nano |
|---|---|---|---|
| BulletBenchmeasured by us | Cost per gameUS dollars | $0.0080 | $0.0025 |
| BulletBenchmeasured by us | Games lost on time% of games | 91.7% | 75.0% |
| BulletBenchmeasured by us | Invalid moves% of moves | 0.0% | 4.0% |
| BulletBenchmeasured by us | Ladder Eloladder Elo | 33 | 197 |
| BulletBenchmeasured by us | Median move timemilliseconds | 2.1 s | 1.0 s |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 56.0 | 20.7 |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 55.0% | 28.3% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 82.7% | 76.7% |
| Artificial Analysisreported | SciCode% of problems | 61.0% | 47.2% |
| Artificial Analysisreported | Terminal-Bench 4.0% of tasks | 63.6% | 0.5% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 46.5% | 11.7% |
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.