Promptfoo vs LangGraph
A side-by-side comparison to help you choose the right tool.
88
Promptfoo scores higher overall (88/100)
But the best choice depends on your specific needs. Compare below.
| Feature | Promptfoo | LangGraph |
|---|---|---|
| Our score | 88 | 87 |
| Pricing | Open-source core; free to run in your own workflows. | Open-source project with no core license fee. |
| Free plan | Yes | Yes |
| Best for | Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows | Teams building serious agent workflows, Developers who need state and branching control, Builders who outgrew simple chains |
| Platforms | mac, windows, linux, api | mac, windows, linux, api |
| API | Yes | Yes |
| Languages | en | en |
| Pros |
|
|
| Cons |
|
|
| Visit site | Visit site |
- Pricing
- Open-source core; free to run in your own workflows.
- Free plan
- Yes
- Best for
- Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows
- Platforms
- mac, windows, linux, api
- API
- Yes
- Languages
- en
- Pricing
- Open-source project with no core license fee.
- Free plan
- Yes
- Best for
- Teams building serious agent workflows, Developers who need state and branching control, Builders who outgrew simple chains
- Platforms
- mac, windows, linux, api
- API
- Yes
- Languages
- en
88Choose Promptfoo if:
- You are Teams serious about AI testing discipline
- You are Developers comparing prompts and providers
- You are Organizations building evals into release workflows
- You want to start free
87Choose LangGraph if:
- You are Teams building serious agent workflows
- You are Developers who need state and branching control
- You are Builders who outgrew simple chains
- You want to start free
FAQ
- What is the difference between Promptfoo and LangGraph?
- Promptfoo is an open-source testing and evaluation framework for prompts and models, designed to fit into ci/cd and comparison workflows. LangGraph is a graph-based framework for building stateful, multi-step agent workflows with more explicit control than plain prompt chaining.
- Which is cheaper, Promptfoo or LangGraph?
- Promptfoo: Open-source core; free to run in your own workflows.. LangGraph: Open-source project with no core license fee.. Promptfoo has a free plan. LangGraph has a free plan.
- Who is Promptfoo best for?
- Promptfoo is best for Teams serious about AI testing discipline, Developers comparing prompts and providers, Organizations building evals into release workflows.
- Who is LangGraph best for?
- LangGraph is best for Teams building serious agent workflows, Developers who need state and branching control, Builders who outgrew simple chains.