# Pi vs Prime Agent (slim)

> Pi scores 68.4 (B) on agent readiness against Prime Agent's 60.5 (C), and leads in 5 of 7 scored categories. Both do agent harness. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent.md (~2,300 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent.json · canonical https://www.anchorterminal.com/compare/earendil-pi-vs-prime-agent
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Pi scores 68.4 (B) on agent readiness against Prime Agent's 60.5 (C), and leads in 5 of 7 scored categories. Both do agent harness.

- Pi: B 68.4, rank #170 of 629 · https://www.anchorterminal.com/tools/earendil-pi.min.md
- Prime Agent: C 60.5, rank #352 of 629 · https://www.anchorterminal.com/tools/prime-agent.min.md
- Pi, good for Developers and pipelines that want a small, scriptable coding agent they can extend in TypeScript and drive over JSONL or RPC, inside their own container. Ahead on Reliability, 75 against 65; Schema & documentation, 84 against 42; Security & auth, 61 against 50; Maintenance & community, 87 against 79.
- 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. Also No incidents deducted, where Pi loses 4 points for them.

| Category | Pi | Prime Agent |
| --- | --- | --- |
| Reliability (16%) | 75 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 42 |
| Agent ergonomics (13%) | 76 | 73 |
| Security & auth (14%) | 61 | 50 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 79 |
| Transparency & trust (7%) | 64 | 64 |

| Fact (where they differ) | Pi | Prime Agent |
| --- | --- | --- |
| Vendor | Earendil | Prime Intellect |
| Terms last updated | no document linked | no date given |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 113k stars, 5.2M npm/wk | 22k stars |