# Architecture Model architecture information ## Fields | Field | Type | Required | Description | Example | | ---------------------------------------------------------- | ---------------------------------------------------------- | ---------------------------------------------------------- | ---------------------------------------------------------- | ---------------------------------------------------------- | | `tokenizer` | [Nullable[models.Tokenizer]](../models/tokenizer.md) | :heavy_check_mark: | N/A | GPT | | `instruct_type` | [Nullable[models.InstructType]](../models/instructtype.md) | :heavy_check_mark: | Instruction format type | | | `modality` | *Nullable[str]* | :heavy_check_mark: | Primary modality of the model | 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 | |