Doubao Seed Code: ByteDance's AI Code Generation Model - Complete API Guide

Looking for a powerful AI code generation model that rivals GPT-4 and Claude at a fraction of the cost? Doubao Seed Code is ByteDance's latest AI model specifically designed for code generation, debugging, and software development tasks.

In this guide, you'll learn:

• What is Doubao Seed Code and its capabilities
• How to access the API via Crazyrouter
• Complete code examples in Python, Node.js, and cURL
• Pricing comparison with other AI models
• Best practices for code generation

What is Doubao Seed Code?#

Doubao Seed Code (doubao-seed-code-preview-251028) is a specialized AI model developed by ByteDance, the company behind TikTok. It's part of the Doubao (豆包) AI family and is specifically optimized for:

• Code Generation: Write functions, classes, and complete programs
• Code Explanation: Understand and document existing code
• Debugging: Find and fix bugs in your code
• Code Review: Get suggestions for improvements
• Multi-language Support: Python, JavaScript, TypeScript, Go, Java, C++, and more

Key Features#

How to Access Doubao Seed Code API#

Option 1: Via Crazyrouter (Recommended)#

Crazyrouter provides unified API access to Doubao Seed Code with OpenAI-compatible endpoints, making integration seamless.

Prerequisites#

1. Sign up at Crazyrouter
2. Get your API key from the dashboard
3. Python 3.8+ or Node.js 16+

Quick Start with Python#

from openai import OpenAI

client = OpenAI(
    api_key="your-crazyrouter-api-key",
    base_url="https://crazyrouter.com/v1"
)

response = client.chat.completions.create(
    model="doubao-seed-code-preview-251028",
    messages=[
        {
            "role": "user",
            "content": "Write a Python function to check if a number is prime. Include type hints and docstring."
        }
    ],
    max_tokens=1000,
    temperature=0.7
)

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

Quick Start with Node.js#

import OpenAI from 'openai';

const client = new OpenAI({
    apiKey: 'your-crazyrouter-api-key',
    baseURL: 'https://crazyrouter.com/v1'
});

async function generateCode() {
    const response = await client.chat.completions.create({
        model: 'doubao-seed-code-preview-251028',
        messages: [
            {
                role: 'user',
                content: 'Write a TypeScript function to validate email addresses using regex.'
            }
        ],
        max_tokens: 1000
    });

    console.log(response.choices[0].message.content);
}

generateCode();

Quick Start with cURL#

curl -X POST https://crazyrouter.com/v1/chat/completions \
  -H "Authorization: Bearer your-crazyrouter-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao-seed-code-preview-251028",
    "messages": [
      {
        "role": "user",
        "content": "Write a Python function to sort a list using quicksort algorithm."
      }
    ],
    "max_tokens": 1000
  }'

Example Output#

When you ask Doubao Seed Code to generate a prime number checker, it produces:

def is_prime(n: int) -> bool:
    """
    Check if an integer is a prime number.

    A prime number is a natural number greater than 1 that has no
    positive divisors other than 1 and itself.

    Args:
        n (int): The integer to check.

    Returns:
        bool: True if n is prime, False otherwise.

    Examples:
        >>> is_prime(2)
        True
        >>> is_prime(4)
        False
        >>> is_prime(17)
        True
    """
    if n <= 1:
        return False
    if n == 2:
        return True
    if n % 2 == 0:
        return False

    max_divisor = int(n ** 0.5) + 1
    for d in range(3, max_divisor, 2):
        if n % d == 0:
            return False
    return True

The model not only generates correct code but also includes:

• Type hints (n: int -> bool)
• Comprehensive docstring with examples
• Optimized algorithm (checking only up to square root)
• Edge case handling

Pricing Comparison#

Pricing Disclaimer: Prices shown are for demonstration and may change. Actual billing is based on real-time prices at request time. Visit Crazyrouter Pricing for current rates.

Cost Savings Example:

For a typical development session with 100K input tokens and 50K output tokens:

That's up to 8x cheaper than GPT-4o for similar code generation quality!

Other Doubao Models Available#

Crazyrouter provides access to the complete Doubao model family:

Best Practices#

1. Be Specific with Requirements#

# Good prompt
"""
Write a Python function that:
1. Takes a list of integers as input
2. Returns the top K largest elements
3. Uses a heap for O(n log k) complexity
4. Includes type hints and docstring
"""

# Less effective prompt
"Write a function to find largest elements"

2. Provide Context#

# Include relevant context
messages = [
    {
        "role": "system",
        "content": "You are a Python expert. Follow PEP 8 style guide and include comprehensive error handling."
    },
    {
        "role": "user",
        "content": "Write a function to parse JSON from a file safely."
    }
]

3. Use Temperature Wisely#

• temperature=0.2 for precise, deterministic code
• temperature=0.7 for creative solutions
• temperature=1.0 for brainstorming alternatives

Frequently Asked Questions#

Is Doubao Seed Code free to use?#

Doubao Seed Code is a paid API service, but Crazyrouter offers very competitive pricing starting at $0.30 per 1M input tokens. New users can sign up and test the API with minimal cost.

What programming languages does it support?#

Doubao Seed Code supports 20+ programming languages including Python, JavaScript, TypeScript, Java, C++, Go, Rust, PHP, Ruby, Swift, Kotlin, and more.

How does it compare to GitHub Copilot?#

Doubao Seed Code is an API-based model that you can integrate into any application, while GitHub Copilot is an IDE plugin. Doubao Seed Code offers more flexibility for custom integrations and is significantly cheaper for high-volume usage.

Can I use it for commercial projects?#

Yes, you can use Doubao Seed Code for commercial projects. The generated code belongs to you.

Getting Started#

1. Sign up at Crazyrouter
2. Get your API key from the dashboard
3. Install the OpenAI SDK: pip install openai or npm install openai
4. Start coding with the examples above

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• Claude Code Pricing Guide
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• Kimi K2 Thinking Model Guide

For questions, contact support@crazyrouter.com