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# Claude Opus 5 is now available in Devin

CognitionJuly 23, 20261 min read

Claude Opus 5 is now live in Devin Desktop and Devin CLI. It will also be part of Devin Cloud’s mode mix.

On [FrontierCode 1.1](https://cognition.ai/blog/frontier-code-1.1), our proprietary benchmark that grades models on real-world engineering tasks based on quality and mergeability, Claude Opus 5 approaches Fable-level performance at half the cost. Within Devin, it also shows particular strength on difficult debugging and root-cause analysis tasks.

A few more patterns stand out from our evaluations:

- On bug fixing tasks, it prefers targeted, in-place fixes over large refactors.
- It is great at adhering to existing repo conventions when building new features and writing tests.
- It excels at following specs closely and completely.

[FrontierCode LeaderboardBenchmarks for how well models meet the standards of high-quality production codebasesView Now](https://cognition.ai/frontiercode)

#### FrontierCode 1.1 ExtendedScore

Score is a weighted aggregate of rubric items. Solutions that don’t pass blocking criteria receive 0.

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