ARES
5.6#21 in llm evaluation toolsAPILinuxSelf-hosted
VisitARES vs Promptfoo
What both publish
| Fact | ARES | Promptfoo |
|---|---|---|
| Installation | The README gives `pip install ares-ai` as the installation command. | Installation is available through npm, npx, Homebrew, and a project dependency; npm and npx require Node.js 22.22.0 or newer. |
| License | The GitHub repository identifies its license as Apache-2.0. | The open-source project is distributed under the MIT license. |
ARES plans
No prices published.
Promptfoo plans
- CommunityFree
- EnterprisePriced on request
- On-PremisePriced on request
Pick ARES if…
It suits teams evaluating RAG quality, custom retrieval systems, or competing RAG configurations. It is appropriate for users able to provide evaluation datasets and self-host the required compute.
Pick Promptfoo if…
Promptfoo suits developers and enterprise teams evaluating prompts, model outputs, and AI application risks. Its local and self-hosted options may appeal to teams that want to run the Community plan on their own infrastructure.