Sentinel sits between your app and OpenAI. Same code. Same prompts. 40-60% lower costs. Fewer hallucinations. AI that learns from every conversation. Automatically.
"What time is it?" → GPT-4o-mini ($0.0001). "Analyze this contract" → GPT-4o ($0.005). Automatic. Per query. 40-60% cost reduction.
Every response gets an empirical confidence score. Not the model's hallucinated self-assessment. Real accuracy based on historical performance.
Your AI learns from every interaction. Without retraining. "Empathy-first responses convert 40% better for price objections." Learned from real data.
Drift detected → diagnosed → fixed. Automatically. No engineer needed. Your AI monitors its own health and heals itself.
Prompt injections, jailbreaks, toxic inputs — blocked before they reach your AI. Built-in security layer.
Sentinel generates prompt variants. Tests them. Keeps what works. Your AI writes its own prompts. Better than any human.
I'm bipolar. My brain lies to me. During mania, I feel invincible — while my life falls apart. My own mind has no reliable self-awareness.
So I built NOVA — a system that monitors my voice daily and tells me when I'm drifting into an episode. 7-11 days before I notice it myself. My psychiatrist at the Max Planck Institute called it "mind-blowing."
Then I realized: every AI system has the exact same problem. It functions. But it doesn't know if it's still functioning well. It drifts. It hallucinates. It degrades. And it doesn't notice.
Sentinel is the algorithm that protects my brain — made universal. The self-awareness my biology denied me, now available to every AI on the planet.
— Tim von Sachs, Founder
Free for 1,000 calls. No credit card required. One line of code.