🤖 AI HOT Daily · Sep 21, 2026

Qwen open-sources Qwen-Image-2.1: 7B unified generation and editing with native transparent image support, now ComfyUI-ready; StepFun launches Step 5 Preview flagship, sparse MoE 600B total/27B active with 1M token context, open weights Oct 15, costs 1/8 of Claude Opus 5; independent investigation finds ChatGPT's __obi cross-site Cookie can link off-site browsing to ChatGPT accounts.

1. 1. Qwen Open-Sources Qwen-Image-2.1: 7B Unified Generation & Editing with Transparent Images

   Unifies text-to-image and image editing into one model with only 7B visual params. Native transparent image support. Up to 10 reference images, circle/doodle/mask local editing, improved text rendering, portrait lighting, and product fidelity.

2. 2. StepFun Launches Step 5 Preview Flagship, Open Weights Oct 15

   Sparse MoE with 600B total/27B active params, 1M token context, text and vision input. Scores 44 on AA Intelligence Index, top 3 open models globally. Single-task cost is 1/8 of Claude Opus 5.

3. 3. Qwen-Image-2.1 Now Supports ComfyUI, Weights Open for Download

   Single 7B checkpoint handles both generation and editing. Native 2K output, up to 10 reference images for instruction editing, supports RGBA output with alpha channel.

4. 4. ChatGPT __obi Cross-Site Cookie Links Off-Site Browsing to Accounts

   Independent investigation reproduces the mechanism: bzr.openai.com sets __obi Cookie on .openai.com domain tied to ChatGPT account; ad-serving sites loading OpenAI pixels send __obi with browsing and purchase data back to OpenAI.