`uv pip install langflow` installs bundle components automatically.

`uv pip install lfx` installs the core LFX executor _only_, with no provider bundles included.

If your flows use bundle components, install the required packages in the same virtual environment.

Some components require an additional [torch opt-in installation](./components-bundle-components#torch-opt-in).

_Long-tail bundles_ are third-party provider integrations like vector stores or model providers that ship together in the `lfx-bundles` package.

_Standalone bundles_ are graduated providers with their own release cadences, such as OpenAI, Anthropic, and Exa.

To install one long-tail provider:

```bash
uv pip install "lfx-bundles[<bundle>]"
```

To install every long-tail provider:

```bash
uv pip install "lfx[bundles]"
```

`lfx[bundles]` is equivalent to `lfx` plus `lfx-bundles[all]`.
It does **not** install graduated standalone packages such as `lfx-openai`.

To install a standalone provider package:

```bash
uv pip install lfx-<provider>
```

For example:

```bash
uv pip install lfx-openai
```

For the complete bundle-to-package mapping, see the [Bundle list](./extensions-bundle-list).

Bundle discovery happens at startup. Restart Langflow or your LFX server after installing.

To see the extensions that are currently loaded, run:

```bash
lfx extension list
```