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Source channel @githubtrending · Post #14798 · Jun 6

#jupyter_notebook Unsloth is a tool that makes it much faster and easier to fine-tune large language models like Llama, Mistral, and Gemma, even on regular computers or single GPUs. It uses smart tricks to speed up training by 2 to 5 times and cuts memory use by up to 70%, so you can train models quickly without needing expensive hardware[1][3][4]. The benefit is that anyone—developers, researchers, or AI fans—can create custom AI models for different tasks, from chatting to vision, in less time and with less hassle, using ready-made notebooks and guides for popular models[3][5]. https://github.com/unslothai/notebooks

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@kejiqu · Post #3730 · 08/27/2025, 02:50 AM

全球首个 AI 勒索软件现身:滥用 OpenAI 开源模型,跨平台搜索、窃取、加密文件 ESET 报告发现名为 PromptLock 的勒索软件,该软件是全球首个利用 AI 生成恶意代码的案例。PromptLock 调用 gpt-oss:20b 模型,在受感染设备本地生成恶意 Lua 代码,用于跨 Windows、Linux 和 macOS 系统搜索、窃取并加密文件。该模型可在具备 16GB 显存的设备上本地运行,支持自由修改和使用。攻击者可以通过建立内部智能体或隧道,将受害网络连接到外部服务器运行的模型,以规避对本地显存的需求。专家认为 PromptLock 或是概念验证程序,但预示着威胁行为者利用本地或私有 AI 的早期信号。OpenAI 表示已采取措施降低模型被恶意利用的风险。IT之家 🏷#PromptLock#AI#勒索软件#gpt#oss#20b 📢频道👥群组📝投稿