> ## Documentation Index
> Fetch the complete documentation index at: https://docs.synthefy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Installation

> Pick the right Synthefy package for what you want to do.

Synthefy ships two packages. Pick by what you want to do:

| I want to…                                     | Install                     | Import                                    |
| ---------------------------------------------- | --------------------------- | ----------------------------------------- |
| Run **Nori** locally (open-source, GPU or CPU) | `pip install synthefy-nori` | `from synthefy_nori import NoriRegressor` |
| Call **hosted Nori** (no GPU)                  | `pip install synthefy`      | `from synthefy import SynthefyNoriClient` |
| **Time-series forecasting**                    | `pip install synthefy`      | `from synthefy import SynthefyAPIClient`  |

* **`synthefy-nori`** is the open-source tabular model. It downloads pretrained weights from Hugging Face and runs locally with a scikit-learn–style API. **Start here for tabular regression.**
* **`synthefy`** is the client for the hosted platform — hosted Nori *and* time-series forecasting.

<Note>
  Both give you Nori. Use `synthefy-nori` to run the model yourself; use `synthefy` to call it (or the forecasting API) over the network.
</Note>

## Optional extras

Install only what a task needs — these are add-ons to `synthefy-nori`:

| Command                                         | Adds               | For                        |
| ----------------------------------------------- | ------------------ | -------------------------- |
| `pip install "synthefy-nori[interpretability]"` | shapiq             | SHAP / feature attribution |
| `pip install "synthefy-nori[eval]"`             | matplotlib, openml | reproducing the benchmarks |
| `pip install "synthefy-nori[train]"`            | wandb, xgboost     | training from scratch      |

## Develop from source

```bash theme={null}
git clone https://github.com/Synthefy/synthefy-nori
cd synthefy-nori
uv sync --extra dev
```

<Card title="Next: Nori Quickstart" icon="rocket" href="/nori/quickstart">
  Fit and predict in five lines.
</Card>