Two terminal / coding agents, side by side. Facts below link to their sources; last checked 2026-10-17.

Open-source autonomous coding agent (VS Code extension and more). Plans, then edits files and runs commands with your approval, using any model provider. source

Autonomous AI software engineer from Cognition: give it a task and it plans, codes, tests and opens pull requests, in the cloud or via Devin Desktop/CLI. source
Cline: Open-source coding agent in VS Code with Plan/Act modes; bring any model. Devin: Cognition's autonomous AI software engineer, in the cloud or locally.
Cline: See official pricing (free tier available). Devin: From $20/month (free tier available). Prices change often; confirm on the official pricing pages.