(new-model)=

# Adding a New Model

This section provides more information on how to integrate a [HuggingFace Transformers](https://github.com/huggingface/transformers) model into vLLM.

```{toctree}
:caption: Contents
:maxdepth: 1

basic
registration
multimodal
```

```{note}
The complexity of adding a new model depends heavily on the model's architecture.
The process is considerably straightforward if the model shares a similar architecture with an existing model in vLLM.
However, for models that include new operators (e.g., a new attention mechanism), the process can be a bit more complex.
```

```{tip}
If you are encountering issues while integrating your model into vLLM, feel free to open a [GitHub issue](https://github.com/vllm-project/vllm/issues)
or ask on our [developer slack](https://slack.vllm.ai).
We will be happy to help you out!
```
