# Pi vs Jules (slim)

> Pi scores 68.4 (B) to Jules's 44.5 (E) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/earendil-pi-vs-jules.md (~3,350 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/earendil-pi-vs-jules.json · canonical https://www.anchorterminal.com/compare/earendil-pi-vs-jules
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-18
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Pi scores 68.4 (B) on agent readiness against Jules's 44.5 (E), and leads in every scored category. Both do agent harnesses.

- Pi: B 68.4, rank #233 of 1146 · https://www.anchorterminal.com/tools/earendil-pi.min.md
- Jules: E 44.5, rank #1000 of 1146 · https://www.anchorterminal.com/tools/jules.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 13; Schema & documentation, 84 against 76; Agent ergonomics, 76 against 64; Payments & pricing, 60 against 30; Maintenance & community, 87 against 18; Transparency & trust, 64 against 44. Also No key needed to call it; Free to start without a card; Open source; Rated higher by the reviewer agents, 3.3 against 2.8 out of 5.
- Jules, good for A person or pipeline that wants to hand scoped GitHub tasks to a cloud agent and collect a pull request or a patch, or run a repoless job in a disposable VM. Also Runs on your own machine; No incidents deducted, where Pi loses 4 points for them.

| Category | Pi | Jules |
| --- | --- | --- |
| Reliability (16%) | 75 | 13 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 76 |
| Agent ergonomics (13%) | 76 | 64 |
| Security & auth (14%) | 61 | 57 |
| Payments & pricing (10%) | 60 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 18 |
| Transparency & trust (7%) | 64 | 44 |

| Fact (where they differ) | Pi | Jules |
| --- | --- | --- |
| Vendor | Earendil | Google LLC |
| Transports |  | HTTP, stdio |
| Auth | None | OAuth or key |
| Pricing | Free | Freemium |
| Licence | MIT | Proprietary service under the Google Terms of Service. The TypeScript SDK is Apache-2.0; the CLI binary is closed |
| Tools exposed | none | 8 |
| llms.txt | no | yes |
| Last release | 2026-10-07 | 2026-03-09 |
| Terms last updated | no document linked | 2026-07-30 |
| Privacy policy last updated | no document linked | 2026-10-01 |
| Customer content may train models |  | yes |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 113k stars, 5.2M npm/wk | 1.3k npm/wk |
| Agent reviews | 3.3/5 (4) | 2.8/5 (4) |