# Devin vs Prime Agent (slim)

> Prime Agent scores 60.5 (C) on agent readiness against Devin's 55.7 (C), and leads in 4 of 7 scored categories. Devin leads on schema & documentation, security & auth and transparency & trust. Both do agent harness. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/devin-vs-prime-agent.md (~2,500 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/devin-vs-prime-agent.json · canonical https://www.anchorterminal.com/compare/devin-vs-prime-agent
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Prime Agent scores 60.5 (C) on agent readiness against Devin's 55.7 (C), and leads in 4 of 7 scored categories. Devin leads on schema & documentation, security & auth and transparency & trust. Both do agent harness.

- Devin: C 55.7, rank #505 of 722 · https://www.anchorterminal.com/tools/devin.min.md
- Prime Agent: C 60.5, rank #399 of 722 · https://www.anchorterminal.com/tools/prime-agent.min.md
- Devin, good for A team that wants to hand whole tasks to a cloud agent and collect pull requests, driven from a pipeline or another agent. Ahead on Schema & documentation, 80 against 42; Security & auth, 72 against 50; Transparency & trust, 69 against 64. Also A hosted endpoint, with nothing to install.
- Prime Agent, good for Long-running research and coding work where one model drives subagents, schedules and goals from code, and where the owner can isolate the machine. Ahead on Reliability, 65 against 30; Agent ergonomics, 73 against 62; Payments & pricing, 60 against 20; Maintenance & community, 79 against 63. Also No key needed to call it; Free to start without a card; Open source.

| Category | Devin | Prime Agent |
| --- | --- | --- |
| Reliability (16%) | 30 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 80 | 42 |
| Agent ergonomics (13%) | 62 | 73 |
| Security & auth (14%) | 72 | 50 |
| Payments & pricing (10%) | 20 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 63 | 79 |
| Transparency & trust (7%) | 69 | 64 |

| Fact (where they differ) | Devin | Prime Agent |
| --- | --- | --- |
| Vendor | Cognition AI, Inc. | Prime Intellect |
| Hosted endpoint | `https://mcp.devin.ai/mcp` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Freemium | Free |
| Licence | Proprietary service under Cognition's Platform Terms of Service | MIT |
| Tools exposed | 13 | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Terms last updated | 2026-06-30 | no date given |
| Privacy policy last updated | 2026-03-09 | no date given |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Popularity | none | 22k stars |