Muse Spark + Muse Wonder (Meta) vs Devin Desktop (formerly Windsurf)

Muse Spark + Muse Wonder (Meta) is the clear winner: 8.8/10 (A-tier) versus 7.5/10 (B-tier). Devin Desktop (formerly Windsurf) isn't a bad tool, but on every category that drives the overall score, Muse Spark + Muse Wonder (Meta) comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.

Pricing-wise, both tools have a free tier (Muse Spark + Muse Wonder (Meta) starts $0, Devin Desktop (formerly Windsurf) starts $0), so you can test either without committing. Compare what each free tier actually unlocks -- usage caps, model access, and feature gates differ a lot more than the headline price suggests, especially as both vendors have tightened limits in 2026.

By use case: pick Muse Spark + Muse Wonder (Meta) when developers who want a cheap, capable agentic model (muse spark 1. Pick Devin Desktop (formerly Windsurf) when developers who want agent-first coding (background + inline) inside a familiar vs code-based editor, and who value cognition's devin integration as a core part of the workflow. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Muse Spark + Muse Wonder (Meta)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Devin Desktop (formerly Windsurf)'s lane, the score gap matters less than the fit.

Bottom line: Muse Spark + Muse Wonder (Meta) is the better tool for most people right now. Pick Devin Desktop (formerly Windsurf) only when developers who want agent-first coding (background + inline) inside a familiar vs code-based editor, and who value cognition's devin integration as a core part of the workflow -- that's its lane, and inside that lane it still earns its place.