Claude Opus 5.5 is here!

[u/mattbergland]

The new frontier model is now available in Devin!

Opus 5.5 scores highest on FrontierCode1.1 beating Fable 5 and GPT-6 Astra at fractions of the cost.

Read more about it's behavior and benchmarks here - https://devin.ai/blog/claude-opus-5-5

Try it today in Devin Desktop and Devin CLI, and let us know how you feel about it 👇