promptfoo vs Weave
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
promptfoo
Test, evaluate, and red-team LLM applications
VS
Weave
Toolkit for tracking and evaluating LLM applications
| Feature | promptfoo | Weave |
|---|---|---|
| Category | Self-Hosted AI | Self-Hosted AI |
| License | MIT | Apache-2.0 |
| Language | TypeScript | Python |
| Setup difficulty | Easy | Medium |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | bare-metal, binary, source | docker, source |
| GitHub stars | ★ 24,063 | ★ 1,113 |
| First released | 2023 | 2023 |
| Replaces | LangSmith | LangSmith |
Why pick each one
Choose promptfoo if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Mature project with 24.1k GitHub stars
- Written in TypeScript
Choose Weave if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Active community (1.1k GitHub stars)
- Written in Python
Frequently asked questions
Is promptfoo or Weave better?
promptfoo is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Weave if its specific feature set fits your needs better.
Are promptfoo and Weave free and open-source?
Yes. promptfoo is licensed under MIT and Weave under Apache-2.0. Both can be self-hosted at no software cost.
Can I run promptfoo and Weave with Docker?
promptfoo: check the project docs for container support. Weave: yes.