codellama

Code Llama 是一个用于生成和讨论代码的模型，构建在 Llama 2 之上。它旨在为开发人员提高工作流程的速度和效率，并使人们更容易学习如何编码。它可以生成关于代码的代码和自然语言。Code Llama 支持当今使用的许多最流行的编程语言，包括 Python、C++、Java、PHP、Typescript (Javascript)、C#、Bash 等。

参数数量

参数数量
70 亿	查看	`ollama run codellama:7b`
130 亿	查看	`ollama run codellama:13b`
340 亿	查看	`ollama run codellama:34b`
700 亿	查看	`ollama run codellama:70b`

用法

CLI

ollama run codellama "Write me a function that outputs the fibonacci sequence"

API

curl -X POST https://127.0.0.1:11434/api/generate -d '{
  "model": "codellama",
  "prompt": "Write me a function that outputs the fibonacci sequence"
}'

变体


`instruct`	微调以在自然语言中生成有用且安全的答案
`python`	Code Llama 的一个专门变体，在 1000 亿个 Python 代码标记上进行了进一步微调
`code`	用于代码补全的基础模型

示例提示

提出问题

ollama run codellama:7b-instruct 'You are an expert programmer that writes simple, concise code and explanations. Write a python function to generate the nth fibonacci number.'

中间填充 (FIM) 或插入

ollama run codellama:7b-code '<PRE> def compute_gcd(x, y): <SUF>return result <MID>'

中间填充 (FIM) 是代码补全模型支持的一种特殊提示格式，可以完成两个已写入的代码块之间的代码。Code Llama 期望插入代码的特定格式

<PRE> {prefix} <SUF>{suffix} <MID>

<PRE>、<SUF> 和 <MID> 是引导模型的特殊标记。

代码审查

ollama run codellama '
Where is the bug in this code?

def fib(n):
    if n <= 0:
        return n
    else:
        return fib(n-1) + fib(n-2)
'

编写测试

ollama run codellama "write a unit test for this function: $(cat example.py)"

代码补全

ollama run codellama:7b-code '# A simple python function to remove whitespace from a string:'

更多信息

Code Llama is a model for generating and discussing code, built on top of [Llama 2](https://ollama.ai/library/llama2). It's designed to make workflows faster and efficient for developers and make it easier for people to learn how to code. It can generate both code and natural language about code. Code Llama supports many of the most popular programming languages used today, including Python, C++, Java, PHP, Typescript (Javascript), C#, Bash and more.

## Parameter counts

| Parameter Count |                                |                            |
| --------------- | ------------------------------ | -------------------------- |
| 7 billion       | [View](/library/codellama:7b)  | `ollama run codellama:7b`  |
| 13 billion      | [View](/library/codellama:13b) | `ollama run codellama:13b` |
| 34 billion      | [View](/library/codellama:34b) | `ollama run codellama:34b` |
| 70 billion      | [View](/library/codellama:70b) | `ollama run codellama:70b` |

## Usage

### CLI

```
ollama run codellama "Write me a function that outputs the fibonacci sequence"
```

### API

```
curl -X POST https://127.0.0.1:11434/api/generate -d '{
  "model": "codellama",
  "prompt": "Write me a function that outputs the fibonacci sequence"
}'
```

## Variations

|            |                                                                                        |
| ---------- | -------------------------------------------------------------------------------------- |
| `instruct` | Fine-tuned to generate helpful and safe answers in natural language                    |
| `python`   | A specialized variation of Code Llama further fine-tuned on 100B tokens of Python code |
| `code`     | Base model for code completion                                                         |

## Example prompts

### Ask questions

```
ollama run codellama:7b-instruct 'You are an expert programmer that writes simple, concise code and explanations. Write a python function to generate the nth fibonacci number.'
```

### Fill-in-the-middle (FIM) or infill

```
ollama run codellama:7b-code '<PRE> def compute_gcd(x, y): <SUF>return result <MID>'
```

Fill-in-the-middle (FIM) is a special prompt format supported by the code completion model can complete code between two already written code blocks. Code Llama expects a specific format for infilling code:

```
<PRE> {prefix} <SUF>{suffix} <MID>
```

`<PRE>`, `<SUF>` and `<MID>` are special tokens that guide the model.

### Code review

```
ollama run codellama '
Where is the bug in this code?

def fib(n):
    if n <= 0:
        return n
    else:
        return fib(n-1) + fib(n-2)
'
```

### Writing tests

```
ollama run codellama "write a unit test for this function: $(cat example.py)"
```

### Code completion

```
ollama run codellama:7b-code '# A simple python function to remove whitespace from a string:'
```

## More information

- [How to prompt Code Llama](https://ollama.ai/blog/how-to-prompt-code-llama)
- [Whitepaper](https://arxiv.org/abs/2308.12950)
- [CodeLlama GitHub](https://github.com/facebookresearch/codellama)
- [Hugging Face](https://hugging-face.cn/codellama)

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