> For the complete documentation index, see [llms.txt](https://axolotl.continuumlabs.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://axolotl.continuumlabs.pro/axolotl-configuration-files/model-configuration.md).

# Model Configuration

| Field Name                       | Description                                                                                                |
| -------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| `base_model`                     | Specifies the Hugging Face model or its path containing model files (`*.pt`, `*.safetensors`, or `*.bin`). |
| `base_model_ignore_patterns`     | Allows specifying an ignore pattern for model files in the repository.                                     |
| `base_model_config`              | Location of the configuration `.json` file if not included in the base model repository.                   |
| `model_revision`                 | Specifies a specific model revision from Hugging Face's hub.                                               |
| `tokenizer_config`               | Optional override for the tokenizer configuration, different from the base model.                          |
| `model_type`                     | Defines the type of model to load, e.g., `AutoModelForCausalLM`.                                           |
| `tokenizer_type`                 | Corresponding tokenizer type, e.g., `AutoTokenizer`.                                                       |
| `trust_remote_code`              | Allows trusting remote code for untrusted sources.                                                         |
| `tokenizer_use_fast`             | Indicates whether to use the `use_fast` option for tokenizer loading.                                      |
| `tokenizer_legacy`               | Specifies whether to use the legacy tokenizer setting.                                                     |
| `resize_token_embeddings_to_32x` | Resizes model embeddings to multiples of 32 when new tokens are added.                                     |
| `is_falcon_derived_model`        | Boolean flag indicating if the model is derived from Falcon.                                               |
| `is_llama_derived_model`         | Boolean flag indicating if the model is derived from Llama.                                                |
| `is_mistral_derived_model`       | Boolean flag indicating if the model is derived from Mistral.                                              |
| `model_config`                   | Optional overrides for the base model configuration, including RoPE Scaling settings.                      |


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