# Fireworks

> **Class** in `langchain_fireworks`

📖 [View in docs](https://reference.langchain.com/python/langchain-fireworks/llms/Fireworks)

LLM models from `Fireworks`.

To use, you'll need an [API key](https://fireworks.ai). This can be passed in as
init param `fireworks_api_key` or set as environment variable
`FIREWORKS_API_KEY`.

[Fireworks AI API reference](https://readme.fireworks.ai/)

## Signature

```python
Fireworks()
```

## Description

**Example:**

```python
response = fireworks.generate(["Tell me a joke."])
```

## Extends

- `LLM`

## Properties

- `base_url`
- `fireworks_api_key`
- `model`
- `temperature`
- `top_p`
- `model_kwargs`
- `top_k`
- `max_tokens`
- `repetition_penalty`
- `logprobs`
- `timeout`
- `model_config`
- `default_params`

## Methods

- [`build_extra()`](https://reference.langchain.com/python/langchain-fireworks/llms/Fireworks/build_extra)
- [`get_user_agent()`](https://reference.langchain.com/python/langchain-fireworks/llms/Fireworks/get_user_agent)

---

[View source on GitHub](https://github.com/langchain-ai/langchain/blob/c59e83a1ffba63d709ea4847445845edd82085dc/libs/partners/fireworks/langchain_fireworks/llms.py#L24)