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Enterprise Technical Service Pricing

Service Positioning

LaoZhang API provides enterprise-grade AI technical API integration services for enterprises and developers:
  • Service Nature: Information technology service / API integration service
  • Target Customers: Enterprise users, development teams, technical departments
  • Billing Method: Token/per-call billing, pay-as-you-go, no monthly fees

Transparent Pricing

Most model prices are transparent and public, consumption fully trackable

Complete Models, Fast Updates

Whenever manufacturers release new models, LaoZhang API is always quick to update
The featured models on this page were updated on July 23, 2026. LaoZhang API gateway pricing, upstream provider pricing, and third-party subscriptions are separate billing contracts. Confirm exact model IDs, token groups, billing modes, and live prices on the console pricing page.

Enterprise Services

Account Credit Options

Account credit and charges are shown in the console. For production use or enterprise procurement, confirm account terms with support.

Cost Estimation Reference

Current Model Selection Reference

Choose a model first, then estimate cost with representative requests:
  • High-volume classification and extraction: gemini-3.5-flash-lite, gpt-5.6-luna
  • General multimodal and agent work: gemini-3.6-flash, gpt-5.6-terra
  • Coding and complex tasks: claude-sonnet-5, gpt-5.6
  • Image generation: gpt-image-2, gemini-3.1-flash-image
This page no longer uses historical fixed estimates such as “1,000 calls cost about X.” Production budgets should use a small-volume test, actual token or per-call usage from logs, and current console pricing.

Usage Monitoring & Management

Console Features

Real-time Dashboard
  • Daily, weekly, monthly statistics
  • Model usage distribution
  • Detailed cost queries
  • Quota warning settings
View at: api2.laozhang.ai/log

Billing Modes

LaoZhang API supports two billing modes. When a model supports both modes simultaneously:
Per-call billing takes priority over token-based billingIf a model supports both per-call and token-based billing, the system defaults to per-call billing.

API Key Settings Impact

Token-based Only

If token is set to “token-based only”, even if the model supports per-call billing, it will use token-based billing

Default Settings

Tokens support all billing modes by default, system auto-selects (per-call priority)

Per-call Billing Scenarios

The following types of models typically use per-call billing:
Applicable Models:
  • GPT-Image-2 family
  • Nano Banana family
  • flux-kontext-pro
Billing Unit: Per image, per call, or usage-based depending on the route
View complete model price list: LaoZhang API Pricing

Token Billing Explanation

What are Tokens?

Understanding Tokens Quickly

Tokens are AI’s “vocabulary units”, the basic unit for billing.Simple Memory:
  • 1 Chinese character ≈ 2 tokens
  • 1 English word ≈ 1 token
  • 500 Chinese characters ≈ 1000 tokens
Real Examples:
  • “Hello World” = 2 tokens
  • A typical article (2000 words) ≈ 3000 tokens

Usage Examples Without Fixed Prices

These numbers only illustrate the calculation method. Actual token counts depend on model tokenization, context, tool calls, and output length. Apply the target model’s current input, output, cached-token, or per-call price.

Prompts and Completions

In each API call, costs consist of two parts:
1

Prompt - Input Tokens

All content you send to the model, including:
  • System prompts
  • User questions
  • Context information
  • Chat history (if any)
2

Completion - Output Tokens

Content generated by the model, including:
  • Text responses
  • Code generation
  • Structured data
Input, output, cached-token, and per-call prices may vary by model, token group, and route. Do not use an upstream provider’s public price to predict a LaoZhang API bill; use the console and call logs.

Current Models and Pricing Entry Point

July 2026 Model Selection

Compare quality, latency, and actual charges on representative requests before selecting a production default.

Cost Estimation Method

1

Small Sample Testing

Test with a small number of samples (5-10)
2

Check Consumption Logs

View detailed token consumption for each call in console
3

Calculate Average

Calculate average token count per call
4

Estimate Total Cost

(Average input tokens × input price + average output tokens × output price) × expected calls; add per-call, per-image, or per-second charges where applicable

Practical Recommendations

  1. Test with lower-cost models first to verify feasibility
  2. Analyze actual consumption through backend logs
  3. Choose appropriate models based on task complexity
  4. Optimize prompts to reduce unnecessary token consumption

Real-time Price Query

Model Price List

View real-time prices for all models
  • Token-based billing prices
  • Per-call billing prices
  • Discount comparisons

Cost Calculator (In Development)

Quickly estimate usage costs
  • Enter estimated usage
  • Select models to use
  • Auto-calculate costs

FAQ

Log in to LaoZhang API Console, you can view real-time prices for all models on the model list page.
Account credit updates after processor and console confirmation.
Yes, we support issuing official invoices. Please submit an invoice application in the console.
Enterprise procurement terms are handled through customer service. Please contact support for a custom quote.

Enterprise Services & Invoicing

Service Nature

  • Service Type: Information technology service / Technical service
  • Invoice Category: Information technology service fee or Data collection fee
  • Target Customers: Enterprise users, development teams, technical departments

Invoice Process

After customer account credit activation or enterprise payment confirmation, commercial invoices may be issued based on the actual payment amount. Invoice issuer and billing details are subject to YingTu Technology Pte. Ltd. and the confirmed service contract.
1

Submit Invoice Information

Submit commercial invoice information through the console or the official support channelSubmit Invoice Application →
2

Invoice Type

  • Commercial invoice or service receipt available for eligible enterprise accounts
  • Invoice category: API Technical Integration Service or Information Technology Service
  • Service statement can be provided when required for enterprise procurement
3

Delivery Time

Delivery timing is subject to account status, contract terms, and support confirmation; electronic invoice or receipt is sent by email.
This service is provided by YingTu Technology Pte. Ltd., a Singapore company, as an API technical integration service. Commercial invoices or receipts are issued according to the confirmed enterprise account arrangement.

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