Promptfoo vs Weights & Biases Weave
| Tagline | Test and red-team LLM apps | Track and evaluate LLM applications |
|---|---|---|
| Category | AI Agents | AI Agents |
| Pricing | Open Source | Freemium |
| Upvotes | 0 | 0 |
| Comments | 0 | 0 |
| Page views | 0 | 0 |
| Click-through to site | 0.0% | 0.0% |
| Readiness Score | 90/100 | 90/100 |
| Launched | Oct 5, 2026 | Oct 5, 2026 |
| Maker | — | — |
What is Promptfoo?
Promptfoo runs evaluations and security tests against prompts, models and agents.
What is Weights & Biases Weave?
Weave by Weights & Biases traces, evaluates and debugs LLM apps and agents.
Not sold on either? See alternatives to Promptfoo or alternatives to Weights & Biases Weave.
Verdict
These two are evenly matched on the measurable metrics above. Choose Promptfoo if you want test and red-team LLM apps; choose Weights & Biases Weave if you want track and evaluate LLM applications.
Is Promptfoo better than Weights & Biases Weave?
They perform similarly on community data; pick based on features and pricing.
Which is cheaper, Promptfoo or Weights & Biases Weave?
Promptfoo is Open Source; Weights & Biases Weave is Freemium. Check each website for current plans.