Works as a performer rather than a prompt: it takes the ticket, runs the tests itself and comes back with a pull request
Price checked 12.10.2026
About the company
Cognition was founded in 2023 by Scott Wu, Steven Hao and Walden Yan, a team known from competitive programming, and its March 2024 demo of Devin was the loudest promise of the year: an agent that works like an engineer rather than a prompt. It started at five hundred dollars a month; in April 2025 the price fell to twenty, one of the sharpest repricings in the industry. In 2025 the company bought Windsurf and acquired an editor with it. Budget here by ACU — units of agent work — rather than by plan: the allowance runs down quickly and beyond it each unit costs $2.25.
Sources: devin.ai · venturebeat.com
What it does
- Briefed like a person, not like an editor
- Runs tests and fixes failures itself
- Usage counted in ACU, not requests
- Beyond the allowance: $2.25 per ACU
What it costs
| Plan | Price | What you get |
|---|---|---|
| Free | $0per month | a small trial allowance |
| Promost picked | $20per seat / month | the standard plan |
| Max | $200per seat / month | a large ACU allowance |
| Доплата за объём | $2.25per use | $2.25 per ACU beyond the allowance |
- Agent finishes the task itself
- Reads the whole repository
- Deploys the result itself
- Has an API
- Single sign-on