A side-by-side of two evals & testing for building AI agents — live GitHub data, languages, and what each is best at.
Short answer: promptfoo leads promptfoo vs Ragas by community traction (★ 24k vs ★ 15k). Pick promptfoo for prompt evals; pick Ragas for RAG evaluation.
✓ Live data verified
| promptfoo | Ragas | |
|---|---|---|
| GitHub stars | ★ 24k | ★ 15k |
| Language | TypeScript | Python |
| Category | Evals & testing | Evals & testing |
| Best for | prompt evals | RAG evaluation |
| Repository | promptfoo/promptfoo | explodinggradients/ragas |
promptfoo and Ragas are both credible choices. By community traction, promptfoo leads (★ 24k). Pick promptfoo for prompt evals; pick Ragas for RAG evaluation.
Both are credible evals & testing. By community traction promptfoo leads (★ 24k). Pick promptfoo for prompt evals; pick Ragas for RAG evaluation.
promptfoo is Test-driven prompt and agent development — evals, red-teaming, and side-by-side model comparison from the CLI.. Ragas is Evaluation toolkit for RAG pipelines — faithfulness, answer relevancy, and context metrics without ground truth..
promptfoo has more — ★ 24k vs ★ 15k (live counts).
Often yes — many teams combine evals & testing. Check each tool's docs for interop; they solve overlapping but not identical problems.
promptfoo is primarily TypeScript; Ragas is primarily Python.
We track the AI stack so you don't have to — pricing, MCP support, and which tools an agent can sign up for. Free.