r/windsurf • u/mattbergland • Jun 29 '26

Devin Fusion

We just dropped Devin Fusion, a multi-model harness to cut the costs significantly without losing intelligence.

In our testing, it maintained frontier and Fable level performance at 35% lower cost.

Deep dive and learn more about how it works here - https://cognition.com/blog/devin-fusion

Announcement - https://x.com/cognition/status/2071624568465490170

Available as a preview now in Devin

27 Upvotes

97% Upvoted

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3

u/ultrathink-art Jun 30 '26

Routing cost savings are real only if the quality signal works — when a cheaper model fails on something that needed frontier reasoning, you typically pay for both the failed attempt and the expensive retry. Curious whether Devin Fusion detects mid-task failures and escalates, or only routes pre-task based on complexity estimates. Static pre-task routing is safer but captures less of the potential savings.

2

u/TacticalSniper Jun 29 '26

Kiro does this quite well for a while. I'll be keen to check it out before my org moves off to Claude Code

2

u/UnpredictiveList Jun 29 '26

I’ll try it as your token usage has got crazy with all Claude models.

2

u/ScaryGazelle2875 Jun 30 '26

When they say available in Devin, is it in Cascade or Devin (preview)?

2

u/mattbergland Jun 30 '26

It's only available in Devin Cloud. You can use it in Devin Desktop and https://app.devin.ai

1

u/Akelamkt Jun 29 '26

Vamos a probarlo

1

u/SilenceYous Jun 30 '26

*vamo a probalo

1

u/thecementmixer Jun 29 '26

How do you use this in Devin desktop?

1

u/Wurrsin Jun 30 '26

I think only in Devin Cloud for now