AI Prompt Testing

A/B Test AI Prompts with Cost Tracking

Compare prompt variations side-by-side with response quality metrics and token cost analysis. Stop guessing — start optimizing.

Start Optimizing — $25/mo
Multi-LLM
OpenAI, Anthropic & more
Cost Analytics
Per-token breakdown
Live A/B Tests
Real-time comparison

Simple Pricing

Pro
$25
/month
  • ✓ Unlimited prompt experiments
  • ✓ OpenAI, Anthropic, Mistral support
  • ✓ Token cost breakdown per run
  • ✓ Side-by-side response comparison
  • ✓ Export results as CSV
  • ✓ Priority support
Get Started

FAQ

Which LLM providers are supported?
We support OpenAI (GPT-4, GPT-3.5), Anthropic (Claude 3), and Mistral. More providers are added regularly.
How is token cost calculated?
We pull live pricing from each provider and calculate exact input/output token costs per experiment run, so you always see the true cost.
Can I cancel anytime?
Yes. Cancel anytime from your billing portal — no questions asked, no lock-in.