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A data-grounded look at how these two coding & development tools stack up — to help you pick the right coding & development tool in 2026.
Quick verdict
There's barely a point between Galileo and Promptfoo on our Editor Score. Pick Galileo if you want 20+ pre-built evaluations for RAG, agents, and safety; choose Promptfoo for declarative YAML tests for prompts and models. On pricing, each has a free or freemium plan, so cost isn't the deciding factor here.
| Pricing | Freemium | Freemium |
| Free tier | ||
| Best for | 20+ pre-built evaluations for RAG, agents, and safety | declarative YAML tests for prompts and models |
Evaluation and observability for LLM apps and agents
Test and red-team prompts, agents, and RAG apps
Choose Galileo if…
Choose Promptfoo if…
It comes down to fit, not a single winner: Galileo leans into 20+ pre-built evaluations for RAG, agents, and safety, while Promptfoo is built for declarative YAML tests for prompts and models. Weigh features and pricing for your workflow. Both have a free or freemium tier, so spin up each and keep the one that clicks.
Neither is universally better — it depends on your budget and which features matter most. The side-by-side breakdown above shows where each one wins.
Galileo (freemium) is best for 20+ pre-built evaluations for RAG, agents, and safety, while Promptfoo (freemium) is best for declarative YAML tests for prompts and models. See the full feature and pricing comparison above.
Both have paid plans — pricing depends on your usage tier. Open each tool's review for current prices, and watch for free trials.
Galileo is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
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Last updated August 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.