---
title: Deterministic chat
description: A live comparison between exact local answers and free-model responses.
---

# A chat that knows when not to guess

The same prompt can take two deliberate paths: an exact local answer with no model call, or a direct free-model request. The switch is visible, the answer provenance is visible, and unknown input can still escalate.

<p className="deterministic-demo-launch">
  <a href="/demo/deterministic-chat">Open the live demo →</a>
</p>

Try the four prepared prompts first. Then type a question that is not in the suggestions, switch to AI mode, and compare the result.