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Devin is an agentic AI software engineer from Cognition: assign it a ticket and it plans, writes code across files, runs tests, fixes its own errors and opens a pull request — working asynchronously like a junior engineer you delegate to. After a 96% price cut in 2026 it starts at $20/mo, putting autonomous engineering within reach of individual developers.
Plans, codes across files, runs tests and opens a PR from a single brief.
Runs in the background like a teammate — assign, walk away, review the PR.
Reads its own test failures and iterates until the task passes.
Pay per Agent Compute Unit (~15 min of work) so cost tracks real effort.
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