Reimagining Product Testing with AI
Test before you launch. Save millions. Move faster.
Our Mission
We're transforming A/B testing from "launch and measure" to "simulate and predict". Using AI virtual customers, we help product teams prevent failed experiments before spending real resources.
Every product decision can be data-driven before launch—saving time, money, and opportunity cost.
What We Do
Virtual Customer Simulation
Test your UI, pricing, copy, and flows with AI-powered virtual customers before launch.
91% Accuracy
Hours, Not Weeks
Get instant feedback on experiments. No waiting for statistical significance or live traffic.
100x Faster
Prevent Costly Failures
Block 70–80% of failed experiments before launch, saving engineering time and opportunity cost.
$1M+ Saved Daily
Powered by Cutting-Edge AI
Our technology combines multiple AI advances to create the most accurate virtual testing platform
🤖 Long-term RL Decision Agents
Our virtual customers use reinforcement learning to simulate realistic decision chains—searching, comparing, hesitating, and converting just like real users. This goes far beyond simple prompts or LLMs.
👥 Multimodal Virtual Customers
Our personas understand UI layouts, text content, pricing structures, and user flows. Each has unique demographics, preferences, and behavioral patterns based on real user data.
🔄 Calibration Flywheel
We continuously improve accuracy by feeding back real A/B test results. The system learns from every outcome, building reusable failure patterns and industry benchmarks.
🛠️ Alignment Compiler (SAL)
Our proprietary compiler turns unreliable prompt engineering into version-controlled, regression-tested engineering assets—ensuring stable, reproducible predictions.
Proven at Scale
Trusted by leading global e-commerce platforms to guide million-dollar product decisions
Prediction Accuracy
Correctly predicts which variant will win in real A/B tests
Saved Per Day
By blocking failed experiments and preventing wasted development time
Fewer PM/Marketers
Reduced headcount needs while increasing experiment velocity
"FacetLab predicted 90% of our experiment outcomes correctly, saving us over $1M per day by preventing failed tests before launch."
— Leading E-commerce Platform
Our Vision
We're building the future of product testing—where teams can confidently ship features knowing they'll succeed, not just hoping they will.
Our long-term vision includes:
- Replace slow, expensive live A/B testing with instant AI simulation
- Build industry-standard virtual user libraries that can be reused across companies
- Enable fearless experimentation where every product team can test 10x more ideas at 1/100th the cost
- Prepare for the agent economy where AI assistants help users make purchasing decisions
We're Hiring
Join us in reimagining how products are built and tested
💻 Software Development Engineers
Build the platform that powers pre-launch testing for thousands of product teams
- Full-stack development (React, Next.js, Node.js)
- Distributed systems and APIs
- Product-minded engineering
🤖 Machine Learning Engineers
Work on cutting-edge RL agents, multimodal models, and calibration systems
- Reinforcement learning and decision agents
- Large language models and multimodal AI
- Production ML systems
Email your resume to qyzkai@gmail.com
Ready to Test Smarter?
Start with 6 free experiments. No credit card required.