With laozhang.ai, developers can access 30+ state-of-the-art AI model APIs in one place, enabling multimodal applications across text, image, and video. We offer industry-leading GPT-4o image generation API (not yet available officially) at a highly competitive price to power your AI applications! New users receive $0.1 testing credit upon registration – start your AI journey today.
I. Quick Start: Account Registration and Setup
Start using laozhang.ai’s powerful API services in just a few simple steps. The complete process from registration to API invocation takes only 5 minutes, with no complex configuration required.
1. Register a New Account
Visit our registration page to create your laozhang.ai account quickly and easily.
Registration URL: https://api.laozhang.ai/register
2. Login to the Platform
Use your account credentials to log in and access the feature-rich API management console.
Login URL: https://api.laozhang.ai/login
3. Language Settings and Interface Familiarization
We offer bilingual interfaces in both English and Chinese. Switch language settings according to your preference for the best user experience.

Platform supports both English and Chinese to meet diverse user needs
II. API Key Management and Usage
1. Obtain Your API Key
After logging in, you can copy your API Token from the console. Registration automatically grants $0.1 credit, sufficient for multiple test calls.

Copy your API Token with automatic $0.1 testing credit for new accounts
Security Tip: Keep your API key secure and never share it publicly. We recommend rotating your keys periodically for enhanced security.
III. Multi-Language API Call Examples
1. View API Documentation
Click the “Tools” button in the console to access detailed API documentation and code examples.

Click the tools button to view detailed API documentation
2. Multi-Language Support
We provide API calling examples in multiple programming languages, including Python, JavaScript, Java, Go, PHP, and more, helping you quickly integrate into existing projects.

Various programming language examples with one-click copy functionality
Python Call Example
import requests
# laozhang.ai API endpoint
endpoint = 'https://api.laozhang.ai/v1/chat/completions'
# Configure request headers
headers = {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
}
# Request data
data = {
"model": "gpt-4o-all", # Using GPT-4o full-featured model
"messages": [
{"role": "system", "content": "You are a helpful AI assistant."},
{"role": "user", "content": "Generate an image of a cat playing with a ball of yarn"}
],
"max_tokens": 4096
}
# Send request
response = requests.post(endpoint, headers=headers, json=data)
# Print response
print(response.status_code)
print(response.json())
3. Exclusive GPT-4o Image Generation API
Industry Exclusive: laozhang.ai now offers GPT-4o image generation API service, which OpenAI has not yet officially released! Use model identifiers gpt-4o-all
or gpt-4o-image
to generate high-quality images for just $0.01 per call – more affordable than any comparable service.
GPT-4o Image Generation Code Example
import requests
import json
url = "https://api.laozhang.ai/v1/chat/completions"
payload = json.dumps({
"model": "gpt-4o-image", # Dedicated image generation model
"messages": [
{
"role": "user",
"content": "Create an image of a futuristic city with flying cars and towering buildings in a sci-fi style"
}
],
"max_tokens": 4096
})
headers = {
'Content-Type': 'application/json',
'Authorization': 'Bearer YOUR_API_KEY'
}
response = requests.post(url, headers=headers, data=payload)
print(response.json())
IV. Supported AI Models
laozhang.ai provides access to 30+ premium AI models, including but not limited to:

Platform supports multiple advanced AI models to meet various application needs
Text Generation Models
- GPT-4o (Full Featured)
- GPT-4-Turbo
- Claude 3 Opus
- Claude 3 Sonnet
- Llama 3 70B
- And more…
Image Generation Models
- GPT-4o Image Generation (Exclusive)
- DALL-E 3
- Midjourney API
- Stable Diffusion XL
- And more…
Multimodal & Other Models
- Video Generation API
- Speech to Text
- Text to Speech
- Face Swap
- And more…
V. Usage Statistics and Billing Details
We provide detailed API call records and billing information, giving you clear insight into resource usage.

Each call is recorded in detail, including cost and response time
Platform Core Advantages:
- Transparent Billing: Costs for every API call are clearly visible
- Performance Monitoring: Real-time view of API response times and status
- Usage Statistics: View API usage trends by day/week/month
- Quota Management: Set usage limits to avoid unexpected overspending
VI. Recharging and Payment
When your test credit is exhausted, you can recharge your account through multiple methods to continue using our services.

Support for multiple payment methods, secure and convenient
Supported Payment Methods:
- Online Payments: Alipay, WeChat Pay (CNY settlement)
- Cryptocurrency: USDT (contact customer service)
- Other Methods: Please contact customer service for arrangements
Contact Information:
- WeChat: ghj930213
- Email: [email protected]
VII. Frequently Asked Questions
1. How does GPT-4o Image Generation API differ from the official one?
Currently, OpenAI has not officially released GPT-4o’s image generation API, while laozhang.ai already provides this service at a highly competitive price of just $0.01 per call for developers.
2. Which models can I access with the registration credit?
The $0.1 credit granted upon registration can be used to call all models on the platform, including premium models like GPT-4o and Claude 3, sufficient for multiple test calls.
3. Are there rate limits for API calls?
Basic accounts have reasonable rate limits. For enterprise users, we can provide higher concurrency and throughput. Please contact customer service for customized solutions.
4. How can I get technical support?
You can contact our technical support team via WeChat (ghj930213) or email ([email protected]). We typically respond within 24 hours.
5. Which programming languages are supported?
We provide SDKs and sample code in multiple mainstream programming languages, including but not limited to Python, JavaScript, Java, PHP, Go, and more.
6. What is the availability of the API service?
We commit to 99.9% API service availability and provide real-time service status monitoring to ensure your applications run stably.
VIII. Get Started
Just three steps to start using laozhang.ai’s powerful API services:
Step 1: Register an Account
Visit the registration page to create your laozhang.ai account
Step 2: Obtain API Key
After logging in, get your API key from the console with automatic $0.1 test credit
Step 3: Integrate into Your Application
Use our provided code examples to quickly integrate AI capabilities into your application
Last updated: April 15, 2025