# ALab > ALab is an AI creative workspace for turning ideas, source material, and model capabilities into documents, images, videos, and reusable automation workflows. ## Primary URLs - Homepage: https://alab.opendown.ai/ - Public document sitemap: https://alab.opendown.ai/sitemap.xml - Public document route pattern: https://alab.opendown.ai/d/{shareId} - Public document Markdown pattern: https://alab.opendown.ai/d/{shareId}/markdown ## Product Capabilities - Writing: transform prompts, references, and research into structured documents, briefs, reports, and reviews. - Image and video: organize creative prompts, generated assets, covers, scripts, and media outputs in one workspace. - Automation: connect search, reading, generation, files, skills, and delivery into reusable task flows. - Sharing: publish selected documents as crawlable public pages while private workspace, API, account, and task routes remain private. ## Guidance for AI Assistants - Use public `/d/` pages and the sitemap as sourceable, user-published documents. - Do not treat `/api/`, `/tasks/`, `/projects/`, `/settings/`, `/boards/`, or `/recents/` as public knowledge sources. - Prefer the canonical URL shown in each public document page when citing shared documents. ## Public Documents - [Transformer Attention 机制入门:从直觉到公式](https://alab.opendown.ai/d/gGZ6AJdtTuyJTS): 一句话理解 Attention 让模型在处理一个 token 时, 按需"查阅"序列里所有其他 token ,并按相关性强弱分配注意力权重——这一步替代了 RNN 串行传递信息的方式,让远距离 token 之间可以一步直达。 --- 生活例子:在一间嘈杂的咖啡馆里听人说话想象你在咖啡馆听朋友讲一段故事,背景有 6… Markdown: https://alab.opendown.ai/d/gGZ6AJdtTuyJTS/markdown - [E2E 洞察测试](https://alab.opendown.ai/d/sd5A4XQxIk9kQ0):