head to head · open source
pi vs Grok Build
pi has 106,586 GitHub stars, 13,437 forks, 202 open issues and last shipped yesterday. Grok Build has 26,820 stars, 5,048 forks, 0 open issues and last shipped yesterday. pi leads on adoption by 297% (106,586 vs 26,820 stars). pi is written in TypeScript under MIT; Grok Build is written in Rust under Apache-2.0. pi has attracted 13% as many forks as stars, Grok Build 19%. pi was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| pi | Grok Build | |
|---|---|---|
| GitHub stars | ★ 107K | ★ 27K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 13K | ⑂ 5.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pi if
- You weight community size — 107K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Grok Build if
- You want the Grok Build feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and Grok Build fits your workflow better
About pi
Pi is a modular agent toolkit written in TypeScript for building and running terminal based AI coding agents. It lives in the developer tooling ecosystem and provides composable packages for LLM integration, agent orchestration, and terminal UI rendering. The project centers on @earendil works/pi coding agent , an interactive CLI agent, supported by core runtime, AI abstraction, and TUI libraries.
About Grok Build
Grok Build is a terminal based AI coding agent developed by SpaceXAI, distributed as the grok CLI/TUI. It operates as a fullscreen, mouse interactive interface that integrates with the user’s codebase to perform code editing, command execution, web search, and long running task orchestration. The project lives in the Rust ecosystem and is licensed under Apache 2.0.
read the full Grok Build overview →
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Frequently asked questions
Is pi or Grok Build more popular?
pi has 106,586 GitHub stars and Grok Build has 26,820. pi has the larger community by that measure.
Are pi and Grok Build free?
Both are open source. pi is licensed under MIT and Grok Build under Apache-2.0. Neither carries a licence fee.
What is the difference between pi and Grok Build?
pi is written in TypeScript and Grok Build in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, pi or Grok Build?
Choose pi if you want the larger community (106,586 stars) or its MIT licence terms. Choose Grok Build if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.