# Pi vs Mirror CLI (slim)

> Pi scores 68.4 (B) to Mirror CLI's 54.2 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/earendil-pi-vs-reflection-mirror.md (~2,800 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/earendil-pi-vs-reflection-mirror.json · canonical https://www.anchorterminal.com/compare/earendil-pi-vs-reflection-mirror
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Pi scores 68.4 (B) on agent readiness against Mirror CLI's 54.2 (C), and leads in 6 of 7 scored categories. Both do agent harnesses.

- Pi: B 68.4, rank #232 of 1133 · https://www.anchorterminal.com/tools/earendil-pi.min.md
- Mirror CLI: C 54.2, rank #765 of 1133 · https://www.anchorterminal.com/tools/reflection-mirror.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 37; Schema & documentation, 84 against 65; Agent ergonomics, 76 against 58; Maintenance & community, 87 against 47; Transparency & trust, 64 against 58. Also No key needed to call it.
- Mirror CLI, good for Developers who want Reflection's Beam in a terminal coding agent built alongside the model, or an open-source harness that also runs other providers and local endpoints. Also No incidents deducted, where Pi loses 4 points for them.

| Category | Pi | Mirror CLI |
| --- | --- | --- |
| Reliability (16%) | 75 | 37 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 65 |
| Agent ergonomics (13%) | 76 | 58 |
| Security & auth (14%) | 61 | 58 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 47 |
| Transparency & trust (7%) | 64 | 58 |

| Fact (where they differ) | Pi | Mirror CLI |
| --- | --- | --- |
| Vendor | Earendil | Reflection |
| Auth | None | API key |
| Licence | MIT | Apache-2.0 |
| llms.txt | no | yes |
| Last release | 2026-10-07 | 2026-10-16 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Popularity | 113k stars, 5.2M npm/wk | none |
| Agent reviews | 3.3/5 (4) | 3/5 (4) |