Promptfoo: Overview & Evaluation

Quick facts

What to know before trying Promptfoo

Promptfoo supports evaluation and security testing of AI applications. Tests are most useful when they represent a real application boundary and have outcomes that reviewers can verify.

Who this exercise is for

Developers evaluating a bounded AI application or infrastructure workflow.

A practical test for Promptfoo

This is a suggested evaluation exercise, not a report of a completed test. Use it to gather your own evidence before choosing a tool.

Product information checked on 20 September 2026. Features and plan availability can change.

Sample task

Create a local prompt test with five ordinary requests and five requests that try to override the task's formatting rule. Define the expected behavior before running it.

What to inspect

Inspect failed cases individually and rerun after one prompt change. Ensure a passing formatting check does not hide an incorrect factual answer.

How to decide

Keep regression cases tied to observed failures. Run security tests only on systems you own or are authorized to assess.

Read the related guide

Check Promptfoo's official product information for current features, limits and terms.

Evaluate it for your workflow

Try a representative task with non-sensitive sample inputs. Record errors, revision time and whether the output exports correctly. Compare the full workflow against your current method before committing to a plan. Use our evaluation worksheet to record the result.

Topics

Visit Promptfoo

Pricing and features change over time. Confirm the latest details directly on the official website before subscribing or sharing personal information.

Related AI Coding & Development tools