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Not sure where to start? This week’s hottest software, models and stacks in three minutes.

AI Apps▾

AI software people use: from assistants like ChatGPT to tools for coding, video and workflows, picked by purpose.

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Software for AI: tools that let your agent (Claude Code, Codex, Cursor…) browse, read docs, run code and remember.

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// Software stack

Personal knowledge base

Capture notes, web pages and PDFs into a searchable second brain that AI can answer from.

3 pieces4 setup stepsscenario: Personal knowledge base: AI that answers from my files

What goes in it

  1. 1

    Obsidian AI notes & knowledge management Closed / commercial

    Notes app

    Local Markdown notes and personal knowledge base; plugins connect AI and agents.

    Or: siyuan · AFFiNE · Notion

  2. 2

    NotebookLM AI notes & knowledge management Closed / commercial

    AI Q&A layer

    Google's source-grounded notebook for Q&A, summaries and audio overviews.

    Or: claudian · obsidian-skills

  3. 3

    沉浸式翻译 AI writing & presentations Closed / commercial

    Web & document capture

    Bilingual side-by-side translation for web pages, PDFs and subtitles.

    Or: PDFMathTranslate · MarkItDown

How to set it up

  1. 01Pick a notes app and set a folder convention
  2. 02Install an AI plug-in or connect NotebookLM
  3. 03Import your key PDFs and web pages in bulk
  4. 04Write 3–5 reusable question templates

Similar stacks: what’s different

Data updated: AI software & hot ranks · Solutions & stack guides(UTC+8)