Pick ChainForge if
prompt researchers who will run ChainForge locally at $0 — not Promptfoo first unless they want a YAML CI red-team harness.
Read the ChainForge pageChainForge vs DeepEval
Our take
Pick ChainForge if you're prompt researchers who will run ChainForge locally at $0 — not Promptfoo first unless they want a YAML CI red-team harness. Pick DeepEval if you're on a python team who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud.
Best for
ChainForge Compare prompts as a graph at $0
DeepEval Unit-test the agent at $0
Free plan
ChainForge $0 · web play or local chainforge serve. You pay model APIs
DeepEval $0 · local pytest + inspect TUI. You pay judge-model tokens
Lowest paid
ChainForge Not published by the vendor
DeepEval Team $2/mo
Next step up
ChainForge
DeepEval Confident AI Starter from $200/mo
Runs where
ChainForge Hosted
DeepEval Hosted
Watch out
ChainForge $0 is the app, not OpenAI/Anthropic tokens
DeepEval $0 is the library, not judge tokens
Last checked
ChainForge 2026-10-27 · chainforge.ai
DeepEval 2026-10-27 · confident-ai.com/pricing
Which one, then?
Pick DeepEval if
python teams who will run DeepEval locally at $0 and only open Confident AI Free / Starter $200 when they want a shared cloud.
Read the DeepEval page