I guess because they store all the required data for voice recognition and other "AI" stuff while other apps use privacy-invasive and low-security cloud services to provide such features.
I don't think that is the answer because other privacy respecting apps(Open source or offline) have a lower size.
Take for example Typewise keyboard the offline paid version, it comes at 44MB only despite them implementing their own AI stuff and implementing a completely new keyboard layout.
Different AI models take up different amount of space. The bulk of space for they keyboard is the model. If you wanted better voice recognition accuracy you COULD use a 10GB model.
Also i think the FUTO keyboard has multiple built in models
If it is artificial intelligence based and the data is stored locally then that data can be quite large. My keyboard is well over 100 megabytes just for the data, for the AI alone. I think it's fair to say that it is probably a good thing that it's large because it means that it's on your machine and it's not being processed anywhere else.
Copying my comment to same answer:
I don't think that is the answer because other privacy respecting apps(Open source and offline) have a lower size.
Take for example Typewise keyboard the offline paid version, it comes at 44MB only despite them implementing their own AI stuff and implementing a completely new keyboard layout.
My AI keyboard let's you choose how accurate the AI is. The more accurate, the larger the file. I'd say that's all it is. A more accurate model is larger.
So it's less than 100mb difference. You could go through both apps and see what files are taking up the extra space.
So small differences in the data model can result in massive size differences. Take a look at the different models advance for Piper/whisper for home assistant. There's orders of magnitude of size difference in very minute functionality differences.
The Grayjay app includes an entire development environment for plugins.
No idea why the keyboard app is "large". Could it be for support on obsolete Android devices where they've needed to re-implement missing APIs and features entirely themselves (like Firefox/Fennec and the Share menu)?
They could also be using completely different local AI tooling, or a custom trained model that has a higher space footprint compared to other similar apps. As always the true answer lies in the available code...
Edit: Grayjay's = The Grayjay
I don't know
But since they are open source should it not be possible to check where the heavy packages are located?
The only app in my opinion that has kind of reasonable size is their voice recognition, while it looks kind of ugly compared to Transcribro.
I think an icon of a microphone for a STT app is much much much better than that UX disaster Transcribo is. lol
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