CodeLlama

Generate, complete, and explain code with CodeLlama on Clore.ai

Newer alternatives! For coding tasks, consider Qwen2.5-Coder (32B, state-of-the-art code gen) or DeepSeek-R1 (reasoning + coding). CodeLlama is still useful for lightweight deployments.

Generate, complete, and explain code with Meta's CodeLlama.

All examples can be run on GPU servers rented through CLORE.AI Marketplace.

Renting on CLORE.AI

1. Visit CLORE.AI Marketplace

2. Filter by GPU type, VRAM, and price

3. Choose On-Demand (fixed rate) or Spot (bid price)

4. Configure your order:

   • Select Docker image

   • Set ports (TCP for SSH, HTTP for web UIs)

   • Add environment variables if needed

   • Enter startup command

5. Select payment: CLORE, BTC, or USDT/USDC

6. Create order and wait for deployment

Access Your Server

• Find connection details in My Orders

• Web interfaces: Use the HTTP port URL

• SSH: ssh -p <port> root@<proxy-address>

Model Variants

Model	Size	VRAM	Best For
CodeLlama-7B	7B	8GB	Fast completion
CodeLlama-13B	13B	16GB	Balanced
CodeLlama-34B	34B	40GB	Best quality
CodeLlama-70B	70B	80GB+	Maximum quality

Variants

• Base: Code completion

• Instruct: Follow instructions

• Python: Python-specialized

Quick Deploy

Docker Image:

pytorch/pytorch:2.5.1-cuda12.4-cudnn9-runtime

Ports:

22/tcp
8000/http

Command:

pip install vllm && \
python -m vllm.entrypoints.openai.api_server \
    --model codellama/CodeLlama-7b-Instruct-hf \
    --port 8000

Accessing Your Service

After deployment, find your http_pub URL in My Orders:

1. Go to My Orders page

2. Click on your order

3. Find the http_pub URL (e.g., abc123.clorecloud.net)

Use https://YOUR_HTTP_PUB_URL instead of localhost in examples below.

Installation

Using Ollama

# Install Ollama
curl -fsSL https://ollama.com/install.sh | sh

# Run CodeLlama
ollama run codellama

# Run Python variant
ollama run codellama:python

Using Transformers

pip install transformers accelerate

Code Completion

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "codellama/CodeLlama-7b-hf"

tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.float16,
    device_map="auto"
)

# Code completion
code = """
def fibonacci(n):
    '''Calculate the nth fibonacci number'''
"""

inputs = tokenizer(code, return_tensors="pt").to("cuda")

outputs = model.generate(
    **inputs,
    max_new_tokens=200,
    temperature=0.2,
    do_sample=True
)

print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Instruct Model

For following coding instructions:

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "codellama/CodeLlama-7b-Instruct-hf"

tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.float16,
    device_map="auto"
)

prompt = """[INST] Write a Python function that:
1. Takes a list of numbers
2. Removes duplicates
3. Sorts in descending order
4. Returns top 5 elements
[/INST]"""

inputs = tokenizer(prompt, return_tensors="pt").to("cuda")

outputs = model.generate(
    **inputs,
    max_new_tokens=500,
    temperature=0.2
)

print(tokenizer.decode(outputs[0], skip_special_tokens=True))

Fill-in-the-Middle (FIM)

# CodeLlama supports FIM for code insertion
prefix = """def calculate_area(shape, dimensions):
    if shape == "circle":
        radius = dimensions[0]
"""

suffix = """
    elif shape == "rectangle":
        length, width = dimensions
        return length * width
    return None
"""

# Use special tokens for FIM
prompt = f"<PRE> {prefix} <SUF>{suffix} <MID>"

inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
outputs = model.generate(**inputs, max_new_tokens=100)

Python-Specialized Model

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "codellama/CodeLlama-7b-Python-hf"

tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.float16,
    device_map="auto"
)

# Python-specific completion
code = """
import pandas as pd
import numpy as np

def analyze_sales_data(df):
    '''Analyze sales data and return key metrics'''
"""

inputs = tokenizer(code, return_tensors="pt").to("cuda")
outputs = model.generate(**inputs, max_new_tokens=300)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

vLLM Server

python -m vllm.entrypoints.openai.api_server \
    --model codellama/CodeLlama-13b-Instruct-hf \
    --dtype float16 \
    --max-model-len 8192

API Usage

from openai import OpenAI

client = OpenAI(base_url="http://localhost:8000/v1", api_key="x")

response = client.chat.completions.create(
    model="codellama/CodeLlama-13b-Instruct-hf",
    messages=[
        {"role": "user", "content": "Write a FastAPI endpoint for user authentication"}
    ],
    temperature=0.2,
    max_tokens=1000
)

print(response.choices[0].message.content)

Code Explanation

code_to_explain = """
def quicksort(arr):
    if len(arr) <= 1:
        return arr
    pivot = arr[len(arr) // 2]
    left = [x for x in arr if x < pivot]
    middle = [x for x in arr if x == pivot]
    right = [x for x in arr if x > pivot]
    return quicksort(left) + middle + quicksort(right)
"""

prompt = f"[INST] Explain this code step by step:\n\n{code_to_explain}\n[/INST]"

Bug Fixing

buggy_code = """
def reverse_string(s):
    result = ""
    for i in range(len(s)):
        result += s[i]
    return result
"""

prompt = f"""[INST] Find and fix the bug in this code. The function should reverse a string:

{buggy_code}
[/INST]"""

Code Translation

python_code = """
def factorial(n):
    if n <= 1:
        return 1
    return n * factorial(n - 1)
"""

prompt = f"""[INST] Convert this Python code to JavaScript:

{python_code}
[/INST]"""

Gradio Interface

import gradio as gr
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "codellama/CodeLlama-7b-Instruct-hf"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.float16,
    device_map="auto"
)

def generate_code(instruction, temperature, max_tokens):
    prompt = f"[INST] {instruction} [/INST]"
    inputs = tokenizer(prompt, return_tensors="pt").to("cuda")

    outputs = model.generate(
        **inputs,
        max_new_tokens=max_tokens,
        temperature=temperature,
        do_sample=True
    )

    response = tokenizer.decode(outputs[0], skip_special_tokens=True)
    return response.split("[/INST]")[-1].strip()

demo = gr.Interface(
    fn=generate_code,
    inputs=[
        gr.Textbox(label="Instruction", lines=5, placeholder="Write a Python function that..."),
        gr.Slider(0.1, 1.0, value=0.2, label="Temperature"),
        gr.Slider(100, 2000, value=500, step=100, label="Max Tokens")
    ],
    outputs=gr.Code(language="python", label="Generated Code"),
    title="CodeLlama Code Generator"
)

demo.launch(server_name="0.0.0.0", server_port=7860)

Batch Processing

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

model_id = "codellama/CodeLlama-7b-Instruct-hf"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype=torch.float16,
    device_map="auto"
)

tasks = [
    "Write a function to validate email addresses",
    "Create a class for managing a shopping cart",
    "Write a function to parse JSON from a URL",
    "Create a decorator for timing function execution",
    "Write a function to generate random passwords"
]

for task in tasks:
    prompt = f"[INST] {task} [/INST]"
    inputs = tokenizer(prompt, return_tensors="pt").to("cuda")

    outputs = model.generate(
        **inputs,
        max_new_tokens=500,
        temperature=0.2
    )

    result = tokenizer.decode(outputs[0], skip_special_tokens=True)
    print(f"\n=== {task} ===")
    print(result.split("[/INST]")[-1].strip())

Use with Continue (VSCode)

Configure Continue extension:

{
  "models": [
    {
      "title": "CodeLlama",
      "provider": "ollama",
      "model": "codellama:7b-instruct"
    }
  ],
  "tabAutocompleteModel": {
    "title": "CodeLlama",
    "provider": "ollama",
    "model": "codellama:7b-code"
  }
}

Performance

Model	GPU	Tokens/sec
CodeLlama-7B	RTX 3090	~90
CodeLlama-7B	RTX 4090	~130
CodeLlama-13B	RTX 4090	~70
CodeLlama-34B	A100	~50

Troubleshooting

Poor Code Quality

• Lower temperature (0.1-0.3)

• Use Instruct variant

• Larger model if possible

Incomplete Output

• Increase max_new_tokens

• Check context length

Slow Generation

• Use vLLM

• Quantize model

• Use smaller variant

Cost Estimate

Typical CLORE.AI marketplace rates (as of 2024):

GPU	Hourly Rate	Daily Rate	4-Hour Session
RTX 3060	~$0.03	~$0.70	~$0.12
RTX 3090	~$0.06	~$1.50	~$0.25
RTX 4090	~$0.10	~$2.30	~$0.40
A100 40GB	~$0.17	~$4.00	~$0.70
A100 80GB	~$0.25	~$6.00	~$1.00

Prices vary by provider and demand. Check CLORE.AI Marketplace for current rates.

Save money:

• Use Spot market for flexible workloads (often 30-50% cheaper)

• Pay with CLORE tokens

• Compare prices across different providers

Next Steps

• Open Interpreter - Execute code

• vLLM Inference - Production serving

• Mistral/Mixtral - Alternative models