# tinker_cookbook.weights.build_lora_adapter

### [**tinker_cookbook.weights.build_lora_adapter**](https://github.com/thinking-machines-lab/tinker-cookbook/blob/nightly/tinker_cookbook/weights/__init__.py#L39)(*base_model*, *adapter_path*, *output_path*)

Convert a Tinker LoRA adapter to standard LoRA format.

**Parameters:**

- **base_model** (*str*) – HuggingFace model name or local path. Needed to resolve model-specific weight naming conventions.
- **adapter_path** (*str*) – Local path to the Tinker adapter directory (must contain `adapter_model.safetensors` and `adapter_config.json`).
- **output_path** (*str*) – Directory where the standard LoRA adapter will be saved.