Licences
Med-Mind runs on an open-weights model. This page is where its licence and notice live, as that licence requires.
Med-Mind Companion S1
The on-device model the app downloads is a redistribution of Qwen3-0.6B, published by the Qwen team at Alibaba Cloud, in the 4-bit dynamically quantised LiteRT-LM build produced by the litert-community project. The weights are unmodified; only the filename differs.
| Field | Value |
|---|---|
| Upstream model | Qwen/Qwen3-0.6B |
| Build | litert-community/Qwen3-0.6B
(Qwen3-0.6B_dynamic_wi4b32_afp32.litertlm) |
| Copyright | Copyright 2025 Alibaba Cloud |
| Licence | Apache License, Version 2.0 — full text, notice |
| Size | 344,437,808 bytes |
| SHA-256 | e3e290109da4388d65a17510a0c66af91c8039f52d2c465868dbc43c09a776cf |
The Apache License, Version 2.0 permits redistribution under a different name provided the licence and this notice accompany the distribution. That is why the model is called Med-Mind Companion S1 and why this page exists.
Verifying your download
The app checks this hash itself before it will load the model, and deletes the file rather than using it if the hash does not match. You can check the same thing:
curl -sL https://medmind.cstsolution.com/models/medmind-companion-s1/medmind-companion-s1.litertlm \ | shasum -a 256
On-device model on newer iPhones
Where the phone supports it, Med-Mind uses the model built into iOS through Apple's Foundation Models framework instead, and downloads nothing. That model is Apple's and is covered by your agreement with Apple.
Models we deliberately did not ship
Both of these are good models. Neither was chosen, for licensing reasons rather than quality ones, and it is worth being open about why.
| Model | Why not |
|---|---|
| Gemma 3 1B | The Gemma Terms of Use require every distribution to carry a “Built with Gemma” notice and to pass the full agreement to each recipient. Usable, but it puts Google's name on the core of the product. |
| Llama 3.2 1B | The Llama Community License requires any derivative model's name to begin with “Llama”, so it could not be called Med-Mind Companion at all. |