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PerchDeck
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In the dock as “AI”

A small AI that runs on your own PC

A chat with a small AI model that runs on your PC, with no account and no subscription. Nothing you write leaves your PC.

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What it does

  • What runs
    Qwen3.5 2B (by Alibaba, Apache 2.0), 4-bit, with its vision part so it can look at pictures, running on your CPU through llama.cpp (MIT).
  • One-time download
    About 1.82 GB from Hugging Face, with progress, stop and resume, and a checksum check before use. Apart from the licence check, it is the only thing in PerchDeck that uses the internet. After that, the chat itself needs no connection.
  • Chat, with pictures
    Replies appear word by word as formatted text, with Copy on code blocks. Attach a PNG, JPG, WebP, GIF or BMP up to 25 MB, or paste a screenshot with Ctrl+V.
  • Your chats stay here
    Earlier chats are kept on this PC (turn it off in Settings). Pictures are never saved, only the text. You can delete one chat, all chats, or the model and all chats.

Good to know

Limits and defaults, stated plainly.

  • Speed measured on an Intel Core i7-4800MQ from 2013 with no graphics card: first word in about 1 second and about 10 tokens a second for text. A large screenshot with small text took about 2 minutes before the first word. Newer PCs should be faster; that is not measured.
  • It needs about 3 GB of free memory while it works (about 2.6–2.9 GB measured), and 8 GB or more is recommended. The model unloads itself after 10 minutes unused.
  • It is a 2-billion-parameter model. It makes mistakes and can be wrong with confidence: “AI can make mistakes. Check important information.” It is not comparable to large cloud models.
  • The “Think” switch (off by default) makes it reason step by step first. It is slower, and on a PC without a graphics card may not answer within minutes.
  • It only chats and reads pictures you attach. It does not act for you on files, to-dos or the web.

Questions

AI chat: questions

Works well with

Give your screen a notch.

Thirteen everyday tools, one hover away. A one-time purchase, with no account.

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