OpenAI 发布了GPT-4.1 提示工程指南 以前许多典型的最佳实践和提示依旧适用于 GPT-4.1 由于GPT-4.1 更严格、更字面地遵循指令，会非常严格地按照字面指令去执行任务。 这使得它对明确、清晰的提示尤其敏感。也就是说，只要你发现 GPT-4.1 的表现与预期不符，通常只需增加一句简洁明确的说明，就能迅速把模型引导到正确的行为上。 过去的模型（如 GPT-4） 会更自由地揣测或推断用户指令和系统提示背后的真实意图，即使提示不够精确，也可能猜出用户的意图并完成任务。 所以开发者需要对原有的提示方式进行一定调整（迁移）才能使用。 官方给出了详细的针对 GPT-4.1 的提示工程（Prompting）最佳实践，从基础原则到高级策略，帮助开发者高效构建提示以提升模型表现。

OpenAI 正式发布 GPT-4.1 系列：百万 Token 长文本、更强编码、价格更优！ OpenAI 隆重推出专为开发者打造的全新模型系列——GPT-4.1！该系列包含三个强大的新成员：旗舰级的 GPT-4.1、高速的 GPT-4.1 Mini，以及有史以来最小、最快、最经济的 GPT-4.1 Nano。这些模型在编码能力、复杂指令遵循、长文本处理（首次支持高达一百万 Token 上下文，且无额外费用）以及多模态理解方面均实现了显著提升，性能全面超越 GPT-4o，并在关键指标上比肩甚至超越 GPT-4.5。视频中，OpenAI 团队成员详细介绍了这些模型的性能优势、基准测试结果，并通过精彩的实时演示（如现场编写功能完善的前端应用、处理超长日志文件）展现了它们的实际能力。同时，他们还分享了更优惠的定价策略，并宣布了 GPT-4.5 的后续计划。快来了解这些为开发者量身定制、现已在 API 中可用的新一代 AI 模型吧！

OpenLora is the designated deployment engine for specialized models in the OpenLedger ecosystem. By leveraging just-in-time adapter switching, OpenLora enables the efficient serving of thousands of fine-tuned LoRA adapters on a single GPU, drastically reducing deployment costs. Unlike generic models, OpenLora-powered specialized models require fewer input tokens and produce more optimized, precise outputs - minimizing both input and output token size while delivering task-specific performance at scale. Faster, Smarter, and Specialized.

OpenLedger Epoch 2 testnet nodes are now live! Epoch 1 node runners will receive priority access for node running, followed by new signups. Initially, data contribution will be available for whitelisted users only, with broader access (including epoch 1 node runners) coming later. At the moment, only the Chrome Extension nodes are live, with PC nodes coming soon. Register https://t.co/AYY21Ho9x0 Download Chrome Extension and keep running to earn points: https://t.co/7VqSHZ8t83

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OpenLedger Testnet Epoch 2 is officially LIVE! @OpenledgerHQ Whitelisted members, access to these models is rolling out now in batches. The Data Intelligence Layer for node runners is also launching soon! Register here: https://t.co/qRjThoSH1B https://t.co/c3eOWAAZgf

🇺🇸EX-OPENAI INSIDERS BACK ELON: “NONPROFIT” FLIP IS A SELLOUT MOVE A dozen former OpenAI employees are backing Elon's lawsuit to keep the company's nonprofit status, blasting OpenAI for chasing a $40B payday. They say the nonprofit structure wasn’t just a mission statement - it was the reason they joined. Now, it's being tossed to please investors. OpenAI claims “the mission is still intact.” Sure - as long as “mission” now means enriching venture capitalists. Source: Reuters

We opened the vault and spilled some secrets with Comics & Crypto! 🗝️ Grails, glitches, giveaways… and where physical collecting is headed next If you missed it live, the replay’s waiting… graded slabs don’t spoil 😎 📺 👇

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The Open eXtensible Rack System site has just gone live, and the first ever prototype is now completely assembled and functional. Come along to the next livestream to see it in action: https://t.co/FcMSUIVO0P https://t.co/eFznjrt5If