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What you can do with Slotstream

Slotstream is a native Swift command-line tool and local server that runs the 125-billion-parameter Qwen3.8-Flash-Next model on Apple Silicon Macs with 16 to 64 GB of memory by streaming experts from the SSD.

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carloslfu/slotstream on GitHub

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What do you want to do?

4 use cases

  • Chat with a large model offline on your Mac

    Install Slotstream and get a first offline reply from a 125B model on a 16 to 64 GB Mac.

    View prompt
    In the carloslfu/slotstream repo, install the tool, run `slotstream doctor`, and then run `slotstream run --prompt "<your question>"`. Expected output: a text reply from the local model. Verify that the reply prints after the model download finishes and that no cloud service is contacted.

  • Code with Claude Code on a local model

    Start Claude Code connected to the Slotstream local model with one command.

    View prompt
    Using the carloslfu/slotstream repo, run `slotstream launch claude` in the project folder <project path>. Expected output: Claude Code starts connected to the local Slotstream model. Verify by asking it to summarize one file in <project path> and confirming a reply comes back without a network call to a hosted model.

  • Use Codex with a local model on your Mac

    Launch Codex against the Slotstream model so code tasks stay on your machine.

    View prompt
    In the carloslfu/slotstream repo, run `slotstream launch codex` from <project path>. Expected output: Codex opens connected to the local model. Verify by asking it for a one-line code explanation of <file name> and confirming it responds.

  • Connect your own app to a local model API

    Run the Slotstream server and point an Ollama or OpenAI client at it.

    View prompt
    In the carloslfu/slotstream repo, run `slotstream serve --prefix-cache-dir <folder>` and send one OpenAI-compatible chat request to the local address printed at startup. Expected output: a JSON chat response from the local model. Verify that the response contains generated text and that the server log shows the request.

How to use Slotstream

  1. Check you have what it needs: An Apple Silicon Mac with at least 16 GB of memory; macOS 14 or later; About 110 GB of free SSD space.
  2. Open carloslfu/slotstream on GitHub and read the README and license.
  3. Open Terminal and run curl -fsSL https://raw.githubusercontent.com/carloslfu/slotstream/main/install.sh | sh
  4. If slotstream isn't found, open a new terminal window.
  5. Run slotstream doctor to check memory and disk space without loading the model.
  6. Run slotstream run --prompt "Why is the sky blue?" and let the first run download the model.

These steps come from our top use case, Chat with a large model offline on your Mac, which also has a copy-paste agent prompt.

Slotstream alternatives · Best AI repos for Software and DevOps

About this repo

Requirements

  • An Apple Silicon Mac with at least 16 GB of memory
  • macOS 14 or later
  • About 110 GB of free SSD space
  • An internet connection for the one-time model download
  • Terminal access to run the install command
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Questions about Slotstream

What is Slotstream?

Slotstream is a native Swift command-line tool and local server that runs the 125-billion-parameter Qwen3.8-Flash-Next model on Apple Silicon Macs with 16 to 64 GB of memory by streaming experts from the SSD. It is an open-source project on GitHub: https://github.com/carloslfu/slotstream.

Who is Slotstream for?

Mac owners without a cloud AI account, and developers who want a private local model behind their coding agents or apps.

What can I do with Slotstream?

4 use cases so far, for example: Chat with a large model offline on your Mac; Code with Claude Code on a local model; Use Codex with a local model on your Mac. Each has steps and a copy-paste agent prompt.

What do I need to run Slotstream?

An Apple Silicon Mac with at least 16 GB of memory; macOS 14 or later; About 110 GB of free SSD space; An internet connection for the one-time model download.

What are alternatives to Slotstream?

Other hot AI repos in Software and DevOps: Harness2, iFixAi, Orca, Diagram Design, AI Memory.

Is Slotstream safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.