How to use GLM-5.3-FlashX with your Z.AI API key on TypingMind

Learn how to access and use GLM-5.3-FlashX with your Z.AI API key through TypingMind. Get started with this AI model in minutes.

High-speed GLM-5.3-Flash serving option for coding and agent workflows

Z.AI is the international platform of Zhipu AI, the team behind the GLM model family. Its API gives pay-per-token access to GLM models for chat, reasoning, coding, and vision through an OpenAI-compatible endpoint, including free Flash models for lighter tasks.

See the official Z.AI documentation for more details.

GLM-5.3-FlashX Overview

Model NameGLM-5.3-FlashX
ProviderZ.AI
Model IDglm-5.3-flashx
Model LogoGet the logo URL
Release DateSep 18, 2026
Last UpdatedSep 18, 2026
Context Window1,000,000 tokens
Max Output131,072 tokens
Pricing /1M tokens$0.37 input
$1.25 output
$0.075 cache read
Input Modalitiestext, image, video, pdf
Output Modalitiestext
Capabilities
File UploadReasoningTool CallingStructured OutputTemperature ControlOpen Weights

Complete Setup Guide

I

Get Your Z.AI API Key

First, you'll need to obtain an API key from Z.AI. This key allows you to access their AI models directly and pay only for what you use.

  1. Visit Z.AI's API console
  2. Sign up or log in to your account
  3. Navigate to the API keys section
  4. Generate a new API key (copy it immediately as some providers only show it once)
  5. Save your API key in a secure password manager or encrypted note
Z.AI API keys page

Sometimes, this provider will require you to add a payment method to your account before you can use your API key to chat with AI. So, to avoid any hiccups, make sure you've got a payment method set up and ready to go!

Important: Keep your API key secure and never share it publicly. Store it safely as you'll need it to connect with TypingMind.

II

Configure TypingMind with Z.AI API Key

Option 1: Use the built-in Z.AI provider (recommended)

The quickest way. TypingMind already has Z.AI set up, so you only need to add your API key.

  1. Open TypingMind and click "Models" in the left sidebar.
  2. Search for Z.AI.
  3. Click the settings (gear) button next to Z.AI.
  4. Paste your API key and save.
Built-in providers with settings buttons on the TypingMind Models page

Option 2: Add the model manually

If you can't find the provider or model ID in the official list, you can add the model manually:

  1. Open the Models page

    Open TypingMind, click "Models" in the left sidebar, then click "Add custom model" in the top right corner.

    TypingMind Models page with the Add custom model button
  2. Enter the model details

    Keep "Create Manually" selected and fill in the model details:

    Name: GLM-5.3-FlashX via Z.AI (or your preferred name)
    Model ID: glm-5.3-flashx for example (check Z.AI model list)
    Context Length: Enter the model's context window (e.g., 1000000 for glm-5.3-flashx)
    Add Custom Model dialog in TypingMind filled in for glm-5.3-flashx
  3. Set up authentication

    In the "Authentication" tab, set the connection details:

    API Type: OpenAI Chat Completions API
    Endpoint URL: https://api.z.ai/api/paas/v4/chat/completions
    Authentication Type: API Key via HTTP Header
    Header Key: Authorization
    Header Value: Bearer <ZAI_API_KEY>
    Z.AI authentication settings in TypingMind
  4. Add pricing (optional)

    Open the "Pricing" tab and enter the model's input, output, and cache prices per 1M tokens so TypingMind can estimate your usage costs.

    Pricing settings in TypingMind for glm-5.3-flashx
  5. Check the capabilities

    In the "Capabilities" tab, keep "Auto check capabilities on save" on so TypingMind detects supported features like plugins, image input, and thinking, or enable them manually.

    Custom model capabilities settings in TypingMind
  6. Test and save

    Click "Test & Save" to verify the connection and add the model.

III

Start chatting with GLM-5.3-FlashX

Now you can start chatting with GLM-5.3-FlashX through TypingMind:

  • Select GLM-5.3-FlashX from the model dropdown menu
  • Start typing your message in the chat input
  • Enjoy faster responses and better features than the official interface
  • Switch between different AI models as needed
Chat with GLM-5.3-FlashX from Z.AI on TypingMind

💡 Pro tips for better results:

TypingMindZ.AI

Why TypingMind + Z.AI?

Chat with GLM-5.3-FlashX and 200+ other models in one workspace, using your own Z.AI API key.

Best-in-class UI

TypingMind's interface is far superior to standard chat UIs.

Model flexibility

Switch between GLM-5.3-FlashX and 200+ models instantly.

Cost control

Pay only for what you use through Z.AI.

One-time purchase

Buy TypingMind once, use forever with any Z.AI model.

Data privacy

Your conversations are stored locally by default, not on external servers.

Plugins, MCP, Skills & AI agents

Extend GLM-5.3-FlashX with web search, image generation, and custom AI agents.

Try TypingMind for free

Frequently Asked Questions

Do I need a subscription to use GLM-5.3-FlashX?

No. With your own Z.AI API key, you pay only for what you use, with no monthly subscription. TypingMind is also a one-time purchase, not a subscription.

How much does it cost to use GLM-5.3-FlashX?

GLM-5.3-FlashX costs $0.37/1M input tokens and $1.25/1M output tokens via Z.AI. A typical conversation costs around $0.01-0.10, depending on length.

Can I use other models besides GLM-5.3-FlashX?

Yes. Any model your Z.AI API key can access works in TypingMind, and you can switch between it and models from other providers in the same chat.

Is my data private when using GLM-5.3-FlashX with TypingMind?

TypingMind stores your conversations locally (in your browser on the web version, on your device in the desktop app). Your messages are sent to Z.AI with your API key, so check Z.AI's data policy for how it handles API requests.

More models from Z.AI