Devin
Cognition's autonomous AI engineer that plans, codes, tests, debugs, and opens PRs unattended. Now shipped alongside Windsurf (acquired July 2025) as the async half of Cognition's stack — Devin runs async tasks, Windsurf is the in-editor surface.
Manus AI
General-purpose autonomous agent capable of executing complex, multi-step tasks across browser, code, and system interfaces. One of the most widely discussed agentic AI products of 2025, with significant adoption particularly in Asia.