# Claude Haiku 5.5 is now available in Devin — retained record

> Retained news record from news:ml-devin-blog.

Canonical: https://highsignal.app/data/records/c6167fd3d636a60f

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source: [news](https://highsignal.app/data/news) (news:ml-devin-blog)  published 2026-10-07 17:00 ingested 2026-10-24 10:06

[original source ↗](https://devin.ai/blog/claude-haiku-5-5)

## retained text



```
Claude Haiku 5.5 is now live in Devin.
On FrontierCode 1.1, our proprietary benchmark that grades models on real-world engineering tasks based on quality and mergeability, Haiku 5.5 scores 58.4%. That puts it ahead of Sonnet 5 at about an eighth of the cost per task.
Claude Haiku 5.5 joins the sidekick lineup in Devin Fusion as an excellent option. With Haiku 5.5 as the sidekick, Fusion holds a top-tier FrontierCode score of 66.2 while cutting cost and latency. You can try it today in the Devin CLI with Opus 5.5 as the lead.
```



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