Qwen Open-Sources Qwen-Image-2.1: 7B Unified Generation & Editing with Native Transparent Image Support

Model Releases & Updates

Qwen Open-Sources Qwen-Image-2.1: 7B Unified Generation & Editing with Native Transparent Image Support

Qwen team open-sources Qwen-Image-2.1, unifying text-to-image and image editing in a single model. The visual generation component is only 7B parameters and natively supports generating and editing transparent images. The model supports up to 10 reference images, circle/scribble/independent mask for local editing, improves inference efficiency through hybrid-granularity attention architecture and KV cache reuse, while enhancing text rendering, portrait lighting, and product fidelity. It also covers panoramic images, infographics, and storyboards.

Source: Qwen：Blog Retrieval（API） | Qwen Official Blog

StepFun Releases Flagship Model Step 5 Preview, Weights to Open Source on October 15

StepFun releases flagship base model Step 5 Preview, using sparse MoE architecture with 600B total parameters and 27B activated, supporting 1M Token context and text+visual input. It scores 44 on the Artificial Analysis Intelligence Index, ranking among the top 3 global open-source models, with per-task cost at 1/8 of Claude Opus 5.

Source: 公众号：阶跃星辰（Step） | Original Link

Product Releases & Updates

Qwen-Image-2.1 Now Supports ComfyUI, Open-Source Weights Available

Qwen announces Qwen-Image-2.1 now supports ComfyUI with open weights. A single 7B checkpoint supports both image generation and editing, native 2K output, instruction-based editing with up to 10 reference images per run, and RGBA output with alpha channel.

Source: X：通义千问 / Qwen (@Alibaba_Qwen) | X Thread

Research Papers

Independent Investigation: ChatGPT's __obi Cross-Site Cookie Can Link Off-Site Browsing Behavior to ChatGPT Account

The author reproduced the OpenAI ad collector mechanism through traffic capture on their own phone: bzr.openai.com sets the __obi Cookie on the .openai.com domain, binding to a ChatGPT account (or stable anonymous entity). When advertiser sites loading the OpenAI pixel code, they pass __obi along with browsing and purchase data back to OpenAI.

Source: Hacker News Popular (buzzing.cc Chinese translation) | Original Article

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【Hacker News Top Posts】

Keywords: AI OR GPT OR LLM OR Claude OR OpenAI OR "machine learning" OR "large language model" OR AGI OR "generative AI" OR AI agent OR RAG OR diffusion OR transformer
Data Source: hnrss.org | Filtered from Hacker News

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xAI releases Grok 4.7, 471 points, 387 comments

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3. NASA's Mars Sample Return mission is dead

NASA's Mars Sample Return mission terminated, 276 points, 205 comments

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Apple support document: How to turn off and restrict Apple Intelligence on Mac, 233 points, 157 comments

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Originally published on WeChat Official Account 「比特财商」.