Sentience – Semantic Visual Grounding for AI Agents (WASM and ONNX)

Show HN: Sentience – Semantic Visual Grounding for AI Agents (WASM and ONNX)

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Hi HN, I’m the solo founder behind SentienceAPI. I’ve spent the last December building a browser automation runtime designed specifically for LLM agents.The Problem: Building reliable web agents is painful. You essentially have two bad choices:Raw DOM: Dumping document.body.innerHTML is cheap/fast but overwhelms the context window (100k+ tokens) and lacks spatial context (agents try to click hidden or off-screen elements).Vision Models (GPT-4o): Sending screenshots is robust but slow (3-10s latency) and expensive (~$0.01/step). Worse, they often hallucinate coordinates, missing buttons by 10 pixels. The Solution: Semantic Geometry Sentience is a "Visual Cortex" for agents. It sits between th

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Website: www.sentienceapi.com/docsGitHub