CORS Chat

Assess

Tools

A browser-based web UI for testing OpenAI-compatible chat endpoints.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by product launches, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

4Simon Willison·8/15/2026product_launch
CORS Chat web UI for testing OpenAI-compatible endpoints
Simon Willison built CORS Chat, a web UI for exercising OpenAI Responses-compatible chat endpoints while testing models running locally and through hosted providers. It was used with LM Studio's CORS support and OpenRouter, and it can persist conversations in the browser, export them as JSON, and progressively render SVG images as they stream in.