AI Prompt Testing

A/B Test AI Prompts for Better Outputs

Create prompt templates with variables, run split tests across AI APIs, and identify winning variants using quality metrics and statistical significance.

Start Testing Prompts — $29/mo

Cancel anytime. No credit card lock-in.

Multi-variant Tests

Run A/B/n tests across unlimited prompt variants simultaneously.

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Quality Metrics

Score outputs by relevance, coherence, and task completion automatically.

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Statistical Significance

Know when a winner is real — not just noise — with built-in stats.

Simple Pricing

Pro

$29

/month

  • Unlimited prompt templates
  • A/B/n split testing
  • OpenAI & Anthropic integration
  • Quality scoring dashboard
  • Statistical significance reports
  • CSV export
Get Started

FAQ

Which AI providers are supported?

OpenAI (GPT-4o, GPT-4, GPT-3.5) and Anthropic (Claude 3.5, Claude 3) are supported out of the box. You bring your own API keys.

How is statistical significance calculated?

We use a two-proportion z-test on your chosen quality metric so you can confidently declare a winner at 95% confidence.

Can I cancel anytime?

Yes. Cancel from your billing portal at any time — no questions asked, no lock-in period.