Pick Coval if
voice-agent teams who will pay $100 / mo for 100 simulation minutes.
Read the Coval pageCoval vs Promptfoo
Our take
Pick Coval if you're on a voice-agent team who will pay $100 / mo for 100 simulation minutes. Pick Promptfoo if you're on a app team who will run Community for $0 (MIT, self-host) and only buy Enterprise when they need SSO, a shared dashboard, and more than 10k probes. Skip Coval if you're people who only need a prompt eval YAML (Promptfoo).
Best for
Coval Measure the agent before customers hear it
Promptfoo Fail the build before a prompt ships
Free plan
Coval No free plan
Promptfoo No free plan
Lowest paid
Coval Enterprise $4
Promptfoo Not published by the vendor
Next step up
Coval Starter $100
Promptfoo
Coding agent
Coval Simulations
Promptfoo Eval matrix
Runs where
Coval
Promptfoo Hosted
Watch out
Coval No public $0 plan
Promptfoo Community red team is 10k probes/month
Last checked
Coval 2026-10-28 · coval.ai/pricing
Promptfoo 2026-10-27 · promptfoo.dev/pricing
Which one, then?
Pick Promptfoo if
app teams who will run Community for $0 (MIT, self-host) and only buy Enterprise when they need SSO, a shared dashboard, and more than 10k probes.
Read the Promptfoo page