Devin

Devin, from Cognition, is a cloud agent you assign tickets to, and it plans, writes, tests, and opens pull requests on its own while you review. Since Devin 2.0 the entry price dropped to $20 a month plus pay-as-you-go compute, making it far more accessible than the old $500 tier. The tradeoff is that fully autonomous runs still need careful review, compute units add up on bigger jobs, and it works best on well-scoped tasks rather than open-ended exploration.