Promptfoo vs Google Stitch

A side-by-side comparison to help you choose the right tool.

Promptfoo scores higher overall (88/100)

But the best choice depends on your specific needs. Compare below.

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
Experimental/preview access; no clear standalone paid pricing published.
Free plan
Yes
Best for
Product teams rapidly exploring interface ideas, Designers who want fast prompt-to-UI iteration, Developers who want a head start before coding
Platforms
web
API
No
Languages
en

Choose 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
Read Promptfoo review →

Choose Google Stitch if:

  • You are Product teams rapidly exploring interface ideas
  • You are Designers who want fast prompt-to-UI iteration
  • You are Developers who want a head start before coding
  • You want to start free
Read Google Stitch review →

FAQ

What is the difference between Promptfoo and Google Stitch?
Promptfoo is an open-source testing and evaluation framework for prompts and models, designed to fit into ci/cd and comparison workflows. Google Stitch is google's ai-native design canvas for generating high-fidelity web and mobile ui concepts from natural language.
Which is cheaper, Promptfoo or Google Stitch?
Promptfoo: Open-source core; free to run in your own workflows.. Google Stitch: Experimental/preview access; no clear standalone paid pricing published.. Promptfoo has a free plan. Google Stitch 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 Google Stitch best for?
Google Stitch is best for Product teams rapidly exploring interface ideas, Designers who want fast prompt-to-UI iteration, Developers who want a head start before coding.