Claude Haiku 5.5 is now available in Devin.
On FrontierCode 1.1, Haiku 5.5 scores 58.4%. That puts it ahead of Sonnet 5 at about an eighth of the cost per task.
It is also an excellent sidekick model in Fusion. Try it today with Opus 5.5 as the Lead in Devin Desktop and CLI.
Cognition reports Haiku 5.5 beating Sonnet 5 on FrontierCode 1.1 at about an eighth of the cost per task, and suggests pairing it as a sidekick under an Opus 5.5 lead in Devin.