92 lines
3.1 KiB
Markdown
92 lines
3.1 KiB
Markdown
# Getting Started
|
|
|
|
## 🦙 Python Bindings for `llama.cpp`
|
|
|
|
[](https://abetlen.github.io/llama-cpp-python)
|
|
[](https://github.com/abetlen/llama-cpp-python/actions/workflows/test.yaml)
|
|
[](https://pypi.org/project/llama-cpp-python/)
|
|
[](https://pypi.org/project/llama-cpp-python/)
|
|
[](https://pypi.org/project/llama-cpp-python/)
|
|
[](https://pypi.org/project/llama-cpp-python/)
|
|
|
|
Simple Python bindings for **@ggerganov's** [`llama.cpp`](https://github.com/ggerganov/llama.cpp) library.
|
|
This package provides:
|
|
|
|
- Low-level access to C API via `ctypes` interface.
|
|
- High-level Python API for text completion
|
|
- OpenAI-like API
|
|
- LangChain compatibility
|
|
|
|
## Installation
|
|
|
|
Install from PyPI:
|
|
|
|
```bash
|
|
pip install llama-cpp-python
|
|
```
|
|
|
|
## High-level API
|
|
|
|
```python
|
|
>>> from llama_cpp import Llama
|
|
>>> llm = Llama(model_path="./models/7B/ggml-model.bin")
|
|
>>> output = llm("Q: Name the planets in the solar system? A: ", max_tokens=32, stop=["Q:", "\n"], echo=True)
|
|
>>> print(output)
|
|
{
|
|
"id": "cmpl-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
|
|
"object": "text_completion",
|
|
"created": 1679561337,
|
|
"model": "./models/7B/ggml-model.bin",
|
|
"choices": [
|
|
{
|
|
"text": "Q: Name the planets in the solar system? A: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.",
|
|
"index": 0,
|
|
"logprobs": None,
|
|
"finish_reason": "stop"
|
|
}
|
|
],
|
|
"usage": {
|
|
"prompt_tokens": 14,
|
|
"completion_tokens": 28,
|
|
"total_tokens": 42
|
|
}
|
|
}
|
|
```
|
|
|
|
## Web Server
|
|
|
|
`llama-cpp-python` offers a web server which aims to act as a drop-in replacement for the OpenAI API.
|
|
This allows you to use llama.cpp compatible models with any OpenAI compatible client (language libraries, services, etc).
|
|
|
|
To install the server package and get started:
|
|
|
|
```bash
|
|
pip install llama-cpp-python[server]
|
|
export MODEL=./models/7B/ggml-model.bin
|
|
python3 -m llama_cpp.server
|
|
```
|
|
|
|
Navigate to [http://localhost:8000/docs](http://localhost:8000/docs) to see the OpenAPI documentation.
|
|
|
|
## Low-level API
|
|
|
|
The low-level API is a direct `ctypes` binding to the C API provided by `llama.cpp`.
|
|
The entire API can be found in [llama_cpp/llama_cpp.py](https://github.com/abetlen/llama-cpp-python/blob/master/llama_cpp/llama_cpp.py) and should mirror [llama.h](https://github.com/ggerganov/llama.cpp/blob/master/llama.h).
|
|
|
|
|
|
## Development
|
|
|
|
This package is under active development and I welcome any contributions.
|
|
|
|
To get started, clone the repository and install the package in development mode:
|
|
|
|
```bash
|
|
git clone git@github.com:abetlen/llama-cpp-python.git
|
|
git submodule update --init --recursive
|
|
# Will need to be re-run any time vendor/llama.cpp is updated
|
|
python3 setup.py develop
|
|
```
|
|
|
|
## License
|
|
|
|
This project is licensed under the terms of the MIT license. |