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Pick up to three. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse.
| Dimension | Promptfoo | Ragas |
|---|---|---|
| Overall | 8.4 | 8.3 |
| Capability fit | 8.2 | 8.0 |
| Price / performance | 9.2 | 9.5 |
| Latency / reliability | 7.8 | 7.5 |
| Developer & agent DX | 8.8 | 8.2 |
| Privacy / data retention | 9.0 | 9.2 |
| Lock-in risk (higher = worse) | 2.5 | 2.0 |
| Maturity / track record | 8.0 | 7.8 |
| Pricing | As of 2026-10-24 (promptfoo.dev/pricing, fetched 2026-10-24): Community 'Free Forever' ('Our open-source tool, perfect for individual developers and small teams.') with 'Red teamin… | As of 2026-09-14: Free open-source RAG evaluation library; cost is judge-LLM tokens only (~$0.50–$2 per 100 queries with cheap judges). No hosted SaaS required. Deep LangChain/Llam… |