Promptfoo vs Patronus AI
Agent-native side-by-side. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse. Prefer JTBD picks via /api/decide when choosing for a job.
| Dimension | Promptfoo | Patronus AI |
|---|---|---|
| Overall | 8.4 | 7.3 |
| Capability fit | 8.2 | 8.4 |
| Price / performance | 9.2 | 5.5 |
| Latency / reliability | 7.8 | 8.0 |
| Developer & agent DX | 8.8 | 7.2 |
| Privacy / data retention | 9.0 | 8.5 |
| Lock-in risk (higher = worse) | 2.5 | 5.5 |
| Maturity / track record | 8.0 | 7.5 |
| 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 teaming (10k probes/month)' and 'Run locally o… | As of 2026-09-14: Enterprise evaluation/safety platform (Lynx hallucination detector, Glider judge). Public list price thin — secondary reports cite ~$25/mo Base + per-1k evaluator calls; treat as sales-led until officia… |
| Tagline | Default OSS eval harness. Braintrust when you want hosted collaboration; Promptfoo when you want local/CI… | Layer on when regulated hallucination/safety gates matter more than general CI evals. Lakera for injection… |
Promptfoo
Default OSS eval harness. Braintrust when you want hosted collaboration; Promptfoo when you want local/CI control. Strengths: OSS + CI-native; Red teaming built-in; Multi-provider comparisons.
Strengths
- OSS + CI-native
- Red teaming built-in
- Multi-provider comparisons
Weaknesses
- Less polished product UI than Braintrust
- Enterprise features gated
- You bring judge costs
Patronus AI
Layer on when regulated hallucination/safety gates matter more than general CI evals. Lakera for injection firewall; Galileo/Braintrust for broader prod evals. Strengths: Safety/hallucination-first evaluators; Regulated-industry narrative; Red-teaming / scenario testing.
Strengths
- Safety/hallucination-first evaluators
- Regulated-industry narrative
- Red-teaming / scenario testing
Weaknesses
- Opaque public pricing
- Heavier than CI-first tools
- Not a full tracing suite alone
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