On FrontierCode 2.0, the top coding model falls from 54.6% to 45.5%
The team behind Devin released FrontierCode 2.0, a coding benchmark graded on whether open-source maintainers would merge the agent's change. Its reference solutions modify 67% more files and 89% more lines than FrontierCode 1.1, in codebases 25% larger, and add security patches and performance work. Claude Opus 5.5 still leads but drops from 54.6% to 45.5%, while Gemini 4 Argon drops from 47.5% to 26.3%.