Devin pioneered the 'AI software engineer' category and, after acquiring Windsurf, now sells one brand across cloud agents and a desktop IDE (Devin Desktop, formerly Windsurf, as of June 2026). Entry plans start around $20/mo; Max is $200/mo. Use it for well-scoped tickets, dependency upgrades, and the long tail of bugs — not as a replacement for architectural judgment. If you previously evaluated Windsurf, you are evaluating Devin now. The Cascade-style IDE workflow lives on as Devin Desktop; the autonomous cloud agent is the original Devin. Compare the combined product against Cursor, Claude Code, and Codex rather than treating Windsurf as a separate vendor.
Devin is Cognition's autonomous AI software engineer: it takes a ticket, writes code, runs tests, and opens a PR. Since June 2026 the former Windsurf IDE ships as Devin Desktop, so the product covers cloud agents, a desktop IDE, CLI, and review.