ZWISERFIT — tools on the user's side.

Somebody has to watch the door between your LLM and your Runtime. That's us.

Who we are

ZWISERFIT builds tools on the user's side. LAO is our first open-source product — not our last. Two lines: help you save money, and never bluff.

Our products

🥇 LAO — shipping now

Lineage Anchored Ontology. Per-task model selection, cache-aware token optimization, intent lock, experience-anchored answers. Open source, free, no telemetry.

Install LAO →

🔜 What comes next

We build one product at a time and only announce what is already real. Same three promises: on your side, honest about limits, yours to keep.

Why we built this

"I hit these holes myself, so you don't have to." — burned tokens, confident nonsense, silent pipeline breaks. LAO grew from those holes, not a whiteboard.

Who this is for

🔥 Heavy AI users

Tokens are a monthly line item? The percentage we cut matters.

🏢 Enterprises

LLM spend is a budget line? The absolute amount we save matters.

What we believe