Urgent.News

What's breaking now, across thousands of outlets.

Sunday, 20 September 2026 Reading Room

AI

ChatGPT now knows what you do on other websites via ad collector

Article URL: https://www.buchodi.com/chatgpt-now-knows-what-you-do-on-other-websites-via-ad-collector/ Comments URL: https://news.ycombinator.com/item?id=49776729 Points: 169 # Comments: 85

buchodi.com ·

OpenAI's ad collector, accessible at bzr.openai.com, establishes a cookie named __obi specifically for users while they are on ChatGPT and linked to their ChatGPT account. This cookie is intercepted by ordinary websites visited by the user when they visit those sites. Any company that places ads on ChatGPT incorporates OpenAI's code onto its website, just as retailers already do with Meta and Google tracking code.

When this code is loaded, it sends the __obi cookie along with information about the webpage being viewed, such as products being searched, articles being read, and purchasing habits. Consequently, OpenAI can link users' activities on these websites to their ChatGPT accounts.

Written by urgent.news from Hacker News Best's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.

This story

This is one outlet's version. Read the fullest account.

Read the original at buchodi.com →

More in AI

Building an evidence-first multi-agent system: 720 paired missions, rollback, and strict claim boundaries

I am an independent R&D developer building SSI V5 , an experimental multi-agent architecture focused on evidence, provenance, consolidation, and rollback. The implementation itself is proprietary.

  • SSI V5 multi-agent system focuses on evidence, provenance, consolidation, and rollback capabilities
  • Six agents (ISKRA1-ISKRA6) used in experiments with 720 paired missions
  • System passes training sequence (S1-S10) and completes drone, humanoid tasks with 100% success

·dev.to

I Tried to Build a Bengali Voice Dialer for Android. Here Is What Actually Happened and How I Finally got it right.

A personal project to make phone calls easier for an elderly, non English-speaking parent that works entirely offline, and the long road through Whisper models, sherpa-onnx, frame-size crashes, and…

  • Elderly, non-English-speaking mother inspired personal project
  • Turbo variant of large-v3 Whisper model most successful on Mac
  • Bengali-specific model in sherpa-onnx release assets improved accuracy

·dev.to

More from Sunday 20 September →