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Project comparison
Promptfoo vs ponytail
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Promptfoo
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
Best matched with other agent tools.
23.5K
Stars
+2.3K
Weekly
90/100
Health
ponytail
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
Best matched with other agent tools.
154.0K
Stars
+2.3K
Weekly
84/100
Health
Quick Take
Adoption
ponytail has the larger GitHub footprint with 154.0K stars.
Momentum
Promptfoo is currently growing faster at +2.3K stars this week.
Maintenance
Promptfoo has the stronger automated maintenance signal at 90/100. This is not a security or fit verdict.
Side-by-side evidence
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Promptfoo | ponytail |
|---|---|---|
| Evidence status | Basic listing· 2026-10-04 09:17 UTC | Verified snapshot· 2026-10-04 09:19 UTC |
| GitHub stars | 23.5K | 154.0K |
| Weekly growth | +2.3K | +2.3K |
| Health score | Strong90/100 | Strong84/100 |
| Contributors | 320 | 62 |
| Commits per week | 74.7 | 15.8 |
| Open issues | 437 | 105 |
| Language | TypeScript | JavaScript |
| License | MIT | MIT |
| Last commit | 2026-07-22 17:02 UTC | 2026-10-03 05:12 UTC |
| Last release | 0.121.19 | v4.8.4 |
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