# tinker.types.OptimStepResponse

## _class_ [**tinker.types.OptimStepResponse**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/_pydantic_types/optim_step_response.py#L6)( _[BaseModel](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/_models.py#L88)_)

**Fields:**

- [**metrics**](https://github.com/thinking-machines-lab/tinker/blob/main/src/tinker/types/_pydantic_types/optim_step_response.py#L7) ( _Optional[Dict[str, float]_) – Optimization step metrics as key-value pairs