# ModelArchitecture

Model architecture information


## Fields

| Field                                                                                                | Type                                                                                                 | Required                                                                                             | Description                                                                                          | Example                                                                                              |
| ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |
| `tokenizer`                                                                                          | [Optional[models.ModelGroup]](../models/modelgroup.md)                                               | :heavy_minus_sign:                                                                                   | Tokenizer type used by the model                                                                     | GPT                                                                                                  |
| `instruct_type`                                                                                      | [OptionalNullable[models.ModelArchitectureInstructType]](../models/modelarchitectureinstructtype.md) | :heavy_minus_sign:                                                                                   | Instruction format type                                                                              | chatml                                                                                               |
| `modality`                                                                                           | *Nullable[str]*                                                                                      | :heavy_check_mark:                                                                                   | Primary modality of the model                                                                        | text->text                                                                                           |
| `input_modalities`                                                                                   | List[[models.InputModality](../models/inputmodality.md)]                                             | :heavy_check_mark:                                                                                   | Supported input modalities                                                                           |                                                                                                      |
| `output_modalities`                                                                                  | List[[models.OutputModality](../models/outputmodality.md)]                                           | :heavy_check_mark:                                                                                   | Supported output modalities                                                                          |                                                                                                      |