Updated
Best AI model for Kotlin code
As of Nov 14, 2026, Claude Opus 5.5 was the only model ranked in Kotlin code (0.87, 13% fewer counted bugs than the Kotlin average).
| Rank | Model | Rate |
|---|---|---|
| 1 | Claude Opus 5.5 | 0.87 |
1.00 = Kotlin average · lower is better