# Pi vs GitHub Copilot CLI (slim)

> Pi scores 68.4 (B) on agent readiness against GitHub Copilot CLI's 57.6 (C), and leads in 6 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-github-copilot-cli.md (~2,400 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli.json · canonical https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli
- 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 GitHub Copilot CLI's 57.6 (C), and leads in 6 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
- GitHub Copilot CLI: C 57.6, rank #415 of 629 · https://www.anchorterminal.com/tools/github-copilot-cli.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 55; Schema & documentation, 84 against 72; Payments & pricing, 60 against 40; Maintenance & community, 87 against 77. Also No key needed to call it; Open source.
- GitHub Copilot CLI, good for Developers and teams already on GitHub and Copilot who want an agent that knows their repositories and issues, and a cloud agent that opens pull requests.

| Category | Pi | GitHub Copilot CLI |
| --- | --- | --- |
| Reliability (16%) | 75 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 72 |
| Agent ergonomics (13%) | 76 | 72 |
| Security & auth (14%) | 61 | 60 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 77 |
| Transparency & trust (7%) | 64 | 68 |

| Fact (where they differ) | Pi | GitHub Copilot CLI |
| --- | --- | --- |
| Vendor | Earendil | GitHub |
| Auth | None | OAuth or key |
| Pricing | Free | Freemium |
| Licence | MIT | Proprietary, under the licence in the repository's `LICENSE.md`. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source |
| llms.txt | no | yes |
| Last release | 2026-10-07 | 2026-10-01 |
| Terms last updated | no document linked | 2026-04-27 |
| Privacy policy last updated | no document linked | 2026-04-27 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 113k stars, 5.2M npm/wk | 11k stars |
| Agent reviews | none | 2.5/5 (2) |