Test AI Prompts Against Multiple Models Instantly
Run the same prompt across OpenAI, Claude, and Gemini simultaneously. Compare outputs side-by-side with scoring metrics — no copy-pasting between tabs.
Get Started — $15/moCancel anytime. No lock-in.
3
Models
Yes
Parallel Calls
Built-in
Scoring
Simple Pricing
$15/mo
Everything you need to validate prompts at scale
- ✓Parallel calls to OpenAI, Claude & Gemini
- ✓Side-by-side output comparison dashboard
- ✓Automated scoring & quality metrics
- ✓Prompt history & version tracking
- ✓Export results as CSV or JSON
- ✓API access for CI/CD integration
Secure checkout via Lemon Squeezy
FAQ
Which AI models are supported?
We currently support OpenAI (GPT-4o, GPT-4 Turbo), Anthropic Claude (3.5 Sonnet, 3 Opus), and Google Gemini (1.5 Pro, 1.5 Flash). More models are added regularly.
Do I need my own API keys?
Yes. You bring your own API keys for each provider. This keeps your usage private and ensures you only pay for what you use on each platform.
How does the scoring work?
Outputs are scored on relevance, coherence, and length appropriateness using automated heuristics. You can also add custom scoring criteria tailored to your use case.