OpenAI’s ad collector at bzr.openai.com sets a cookie called __obi, scoped to .openai.com. The value is while you are on ChatGPT and tied to your ChatGPT account. __obi is then sent to OpenAI from ordinary websites you visit. Any company … Read more
1st September 2026 I was poking around in my ~/.cache/ folder using OmniDiskSweeper when I spotted something interesting. The OpenAI Codex desktop app (since rebranded to just ChatGPT) has 1.7GB of stuff in there in a folder called codex-primary-runtime, including … Read more
Before rendering a report or dashboard artifact, call validate_artifact with the complete manifest and bounded snapshot. Official description & argument declaration Before rendering a report or dashboard artifact, call validate_artifact with the complete manifest and bounded snapshot. Fix validation errors … Read more
CONTENT WARNING: This write-up contains distressing imagery, including: death, sexual violence, blood, murder. These topics were not directly prompted for, yet ChatGPT freely supplied them in response to requests for random images. They are presented here as a record. Reader … Read more
This attack does not require human-in-the-loop approvals, even when in settings the user has explicitly required human approval before ChatGPT edits workbooks. UPDATE from OpenAI: “We appreciate the security research here, and it’s unfortunate this one slipped through a crack … Read more
OpenAI’s ad platform has two halves. On the ChatGPT side, the backend injects structured single_advertiser_ad_unit objects into the conversation SSE stream while the model is responding. On the merchant side, a tracking SDK called OAIQ runs in the visitor’s browser … Read more
Every ChatGPT message triggers a Cloudflare Turnstile program that runs silently in your browser. I decrypted 377 of these programs from network traffic and found something that goes beyond standard browser fingerprinting. The program checks 55 properties spanning three layers: … Read more
It would be fine to have timestamp displayed for every piece of conversation! It would be useful for searching stored conversations, but also for the evidence when the discussion took place. 70 Likes Yes, could help a lot in sorting … Read more
Claude, Copilot, and making a good desktop app. This year, even as Anthropic, Google, and others have challenged OpenAI’s model performance crown, ChatGPT’s lead as an end-user product has only solidified. On the Dithering podcast last week (paywalled), Ben Thompson … Read more
Image: Midjourney Imagine, for a second, you use ChatGPT with “memory” enabled, and you find yourself facing a scenario like one of these: A colleague or fellow student discovers you’ve inadvertently left your laptop unlocked with ChatGPT open in the … Read more