Using LetronnaThe mobile app
Models
Choosing the model a chat uses: hosted models, and models on the iPhone.
Tap the model's name at the top of a chat to open the Model menu.
The menu lists Letronna's hosted models with their prices, per 1M tokens in and out. Models that cost nothing say Free. A model with effort levels lets you choose its effort.
Finding a model
Search models finds one by name. You can sort and filter the list:
| Sort | Shows first |
|---|---|
| Suggested | the models Letronna suggests |
| Cheapest | the lowest price |
| Longest context | the most text a model can read at once |
| A–Z | by name |
| Filter | Keeps |
|---|---|
| Reasoning | models that think before they answer |
| Reads images | models that can read photos |
| 1M context | models that read 1M tokens or more |
Models on the iPhone
On an iPhone, the menu also has a group On this iPhone: Apple Intelligence, and the models you have downloaded. They answer with no internet. Manage opens the list of them. See Working offline.
Chats on your computer
A chat that runs on your computer uses your computer's models, not this menu. Its name shows where the model's name would. See Your computer.