GLM API · Ace Data Cloud

GLM API
Zhipu AI Full-Series LLMs

Integrate the complete Zhipu AI GLM model family via OpenAI-compatible format. From the flagship GLM-5.1 to the ultra-affordable GLM-4-Flash, covering reasoning, conversation, vision, and more.

📄 View Docs 💰 View Pricing

🤖 12 Models 🧠 Deep Reasoning 🔌 OpenAI Compatible 🌐 Chinese-English Bilingual

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Model Variants

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GLM-5

Latest Flagship

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Low Cost

Below Official Pricing

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∞

No Rate Limits

Why Use GLM Through Ace Data Cloud?

GLM is the full-series large language model family from Zhipu AI. GLM-5.1 supports deep reasoning (Thinking), GLM-4.5v supports multimodal vision understanding, and GLM-4-Flash offers ultra-low-cost high-speed inference — covering every scenario from flagship to economy.

Ace Data Cloud provides a complete GLM API proxy service using OpenAI-compatible format — no need to adapt to Zhipu's native API. Call GLM directly with the OpenAI SDK. No regional restrictions, available globally.

Core Capabilities of the GLM API

Unlock the full potential of Zhipu AI GLM through an OpenAI-compatible interface

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OpenAI-Compatible Format

Call GLM via /v1/chat/completions, fully compatible with the OpenAI SDK. Seamless switching with zero code changes.

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Deep Reasoning (Thinking)

GLM-5.1 features built-in deep reasoning. The model thinks through structured steps before answering, dramatically improving math, coding, and logic tasks.

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Chinese-English Bilingual

Exceptional native Chinese understanding with strong English performance. Perfect for Chinese NLP, cross-language translation, and multilingual applications.

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Multimodal Vision

GLM-4.5v supports image understanding for tasks like image captioning, OCR, chart analysis, and more — combining vision with language comprehension.

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Ultra-Low-Cost Flash Model

GLM-4-Flash delivers extreme value at just $0.0011/1M input tokens. Ideal for high-concurrency and large-batch processing scenarios.

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Streaming Output

Supports SSE streaming for real-time token-by-token output. Set stream: true to enable streaming responses.

Python

from openai import OpenAI
client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://api.acedata.cloud/v1"
)
response = client.chat.completions.create(
    model="glm-4.7",
    messages=[
        {"role": "user", "content": "Implement a quicksort algorithm in Python"}
    ],
    stream=True
)
for chunk in response:
    if chunk.choices[0].delta.content:
        print(chunk.choices[0].delta.content, end="")

Response

{
  "id": "chatcmpl-glm-20250718120000",
  "object": "chat.completion",
  "created": 1752825600,
  "model": "glm-4.7",
  "choices": [{
    "index": 0,
    "message": {
      "role": "assistant",
      "content": "def quicksort(arr):\n    if len(arr) <= 1:\n        return arr\n    pivot = arr[len(arr) // 2]\n    left = [x for x in arr if x < pivot]\n    middle = [x for x in arr if x == pivot]\n    right = [x for x in arr if x > pivot]\n    return quicksort(left) + middle + quicksort(right)"
    },
    "finish_reason": "stop"
  }],
  "usage": {
    "prompt_tokens": 12,
    "completion_tokens": 85,
    "total_tokens": 97
  }
}

Switch with One Line Using OpenAI SDK

Just change base_url and model to use GLM in your existing OpenAI projects — no code refactoring needed.

Get Your API Key

Set base_url

Point base_url to https://api.acedata.cloud/v1

Choose a GLM Model

Set model to a GLM model name like glm-4.7 or glm-5.1

What Can You Build with the GLM API?

From Chinese NLP to multimodal vision — developers are building these with GLM

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Chinese Chat Assistants

Build high-quality Chinese customer service, knowledge Q&A, and personal AI assistants with native Chinese understanding far beyond general models

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Code Generation & Review

GLM-5 series excels in coding benchmarks, supporting code generation, bug fixing, code review, and architecture suggestions

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Multimodal Vision

GLM-4.5v supports image understanding for OCR, chart analysis, image captioning, and other visual AI applications

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Deep Reasoning & Analysis

Math problem solving, logical reasoning, data analysis — GLM-5.1 Thinking mode provides step-by-step reasoning

Get Started in 3 Steps

From sign-up to your first GLM message in under 3 minutes

Sign Up & Get API Key

Create a free account on Ace Data Cloud and generate your Bearer Token from the console.

Call via OpenAI SDK

Set base_url to Ace Data Cloud and choose any GLM model to get started.

Integrate & Scale

Embed GLM into your app. OpenAI-compatible format makes multi-model switching effortless.

View Documentation →

Why Ace Data Cloud Over Zhipu's Direct API?

Comprehensive advantages in format compatibility, global availability, and unified interface

Comparison	Ace Data Cloud	Zhipu Direct
OpenAI-Compatible Format	✓	✗ Proprietary API format
Global Availability	✓ Works out of the box	✗ Limited in some regions
Streaming Output	✓	✓
Unified Multi-Model API	✓ GPT / Claude / Gemini / GLM	✗ GLM only
Pay-as-you-go	✓ Flexible top-up	✓
No Chinese Phone Required	✓	✗ Chinese phone number needed
Deep Reasoning Models	✓	✓

Choose the Right GLM Model

From flagship reasoning to ultra-low-cost Flash — GLM offers a rich model selection

Recommended

GLM-5.1

Deep Reasoning

Zhipu AI's most powerful flagship with built-in Thinking deep reasoning. The top choice for math, coding, and complex logic tasks.

✓ Visible reasoning process
✓ Top-tier math & coding
✓ Best for complex tasks
✓ Latest model architecture

GLM-4.7

Balanced

The best balance of performance and cost. Supports reasoning capabilities, suitable for most general conversation and coding scenarios.

✓ Excellent cost-performance
✓ Strong general conversation
✓ Reasoning capable
✓ Production-ready

GLM-4-Flash

Ultra Low Cost

Extremely affordable at just $0.001/1M input tokens. Perfect for high-concurrency classification, extraction, and batch processing.

✓ Input $0.001/1M tokens
✓ Ultra-fast response
✓ Great for batch tasks
✓ Classification / Extraction / Chat

glm-5.1 glm-5-turbo glm-5 glm-4.7 glm-4.6 glm-4.5v glm-4.5 glm-3-turbo

GLM API Pricing

Pay per token usage. No subscriptions, no hidden fees.

Bulk packages available for additional discounts

Pay-as-you-go

Token Billing

Low Cost per token

Billed by actual token usage, with separate pricing for input and output

✓ 12 GLM models on-demand
✓ GLM-4-Flash ultra-low pricing
✓ GLM-5.1 deep reasoning ready
✓ Separate input/output pricing
✓ Streaming output — free

View Pricing Details View API Docs

Enterprise

Custom

Tailored plans for high-volume teams

✓ Volume-based tiered discounts
✓ Priority support & account manager
✓ Custom rate limits
✓ SLA guarantees
✓ Private deployment options

Contact Sales

Frequently Asked Questions

Everything you need to know about using the GLM API

What is GLM and how does it differ from other models? ▾

GLM is the large language model family from Zhipu AI, developed by a research team from Tsinghua University. GLM excels at native Chinese understanding while performing strongly in English. GLM-5.1 is the current flagship with deep reasoning; GLM-4.5v supports multimodal vision; GLM-4-Flash offers ultra-low-cost high-speed inference.

Is the OpenAI SDK supported? ▾

Yes! Fully compatible with the OpenAI SDK (Python, Node.js, Go, etc.). Simply set base_url to https://api.acedata.cloud/v1 and set model to any GLM model name. Your existing OpenAI code can switch to GLM with virtually no changes.

How is GLM-5.1 deep reasoning different from regular models? ▾

GLM-5.1 features a built-in Thinking reasoning mode, similar to OpenAI's o1 series. The model first thinks through the solution steps before providing its final answer. This significantly outperforms standard models on math proofs, complex logic, and programming tasks. Thinking tokens are billed separately at a lower rate.

Is GLM-4-Flash really that affordable? ▾

Yes! GLM-4-Flash input costs approximately $0.001/million tokens, and output about $0.0007/million tokens, making it one of the most cost-effective LLMs available. It's perfect for high-concurrency classification, extraction, and simple conversation scenarios, dramatically reducing AI application costs.

How does pricing work? ▾

Billing is per-token, with separate pricing for input and output tokens. Different models have different rates — from the ultra-affordable GLM-4-Flash to the flagship GLM-5.1. No subscriptions, no monthly fees — pay only for what you use. Top up and start immediately; credits never expire.

Can I use GPT, Claude, Gemini, and GLM together? ▾

Absolutely! Ace Data Cloud provides GPT, Claude, Gemini, GLM, and more through a unified OpenAI-compatible interface. Just change the model parameter to switch between models — the API format stays the same, no need to maintain separate codebases. One API key accesses all models.

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