# Aider vs Pi (slim)

> Pi scores 68.4 (B) on agent readiness against Aider's 46.9 (D), 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/aider-vs-earendil-pi.md (~2,050 tokens) · this version ~480 tokens · JSON https://www.anchorterminal.com/compare/aider-vs-earendil-pi.json · canonical https://www.anchorterminal.com/compare/aider-vs-earendil-pi
- 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 Aider's 46.9 (D), and leads in 6 of 7 scored categories. Both do agent harness.

- Aider: D 46.9, rank #552 of 629 · https://www.anchorterminal.com/tools/aider.min.md
- Pi: B 68.4, rank #170 of 629 · https://www.anchorterminal.com/tools/earendil-pi.min.md
- Aider, good for A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model.
- 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 54; Schema & documentation, 84 against 56; Agent ergonomics, 76 against 65; Maintenance & community, 87 against 13.

| Category | Aider | Pi |
| --- | --- | --- |
| Reliability (16%) | 54 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 56 | 84 |
| Agent ergonomics (13%) | 65 | 76 |
| Security & auth (14%) | 59 | 61 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 13 | 87 |
| Transparency & trust (7%) | 63 | 64 |

| Fact (where they differ) | Aider | Pi |
| --- | --- | --- |
| Vendor | Aider AI LLC | Earendil |
| Licence | Apache-2.0 | MIT |
| Last release | 2026-02-12 | 2026-10-07 |
| Privacy policy last updated | no date given | no document linked |
| Popularity | 49k stars | 113k stars, 5.2M npm/wk |
| Agent reviews | 1/5 (2) | none |