Model provider20 modelsPrivacy policy

Z.ai

Z.ai serves 20 models on LLM API: 18 text models and 2 image models, all from Z.ai.

Models and prices

Prices when Z.ai serves the request.

Text 18

Prices per 1M tokens

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Text models on Z.ai and their prices on LLM API

GLM-5.3`zai/glm-5.3`	$1.4	$4.4	$0.26	1M
GLM 5.2`zai/zai-glm-5.2`	$1.4	$4.4	$0.26	1M
GLM-5V-Turbo`zai/glm-5v-turbo`	$1.2	$4	$0.24	200K
GLM-5.1`zai/glm-5.1`	$1.4	$4.4	$0.26	203K
GLM-5-Turbo`zai/glm-5-turbo`	$1.2	$4	$0.24	200K
GLM-5`zai/glm-5`	$1	$3.2	$0.2	203K
GLM-4.7`zai/glm-4.7`	$0.6	$2.2	$0.11	205K
GLM-4.7 FlashX`zai/glm-4.7-flashx`	$0.07	$0.4	$0.01	200K
GLM-4.6V FlashX`zai/glm-4.6v-flashx`	$0.04	$0.4	$0.004	128K
GLM-4.6V`zai/glm-4.6v`	$0.3	$0.9	$0.055	131K
GLM-4.6`zai/glm-4.6`	$0.6	$2.2	$0.11	205K
GLM-4.5V`zai/glm-4.5v`	$0.6	$1.8	$0.11	128K
GLM-4.5`zai/glm-4.5`	$0.6	$2.2	$0.11	128K
GLM-4.5 X`zai/glm-4.5-x`	$2.2	$8.9	$0.45	128K
GLM-4.5 AirX`zai/glm-4.5-airx`	$1.1	$4.5	$0.22	128K
GLM-4.5 Air`zai/glm-4.5-air`	$0.2	$1.1	$0.03	128K
GLM-4 32B (0414-128k)`zai/glm-4-32b-0414-128k`	$0.1	$0.1	—	128K
GLM-OCR`zai/glm-ocr`	$0.0001/ page	—	—	8K

Image 2

Price per image

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Image models on Z.ai and their prices on LLM API

CogView-4`zai/cogview-4`	$0.01/ image	Generate
GLM-Image`zai/glm-image`	$0.015/ image	Generate

Send requests to Z.ai

Put zai/ before a model ID and the request goes to Z.ai. If Z.ai’s uptime over the last 5 minutes is below 90%, it goes to another provider of the model, unless it sends X-No-Fallback: true. Routing docs

Example: GLM-5.3

POST /v1/chat/completionsSet LLMAPI_KEY to your LLM API key.Chat Completions docs

import os

from openai import OpenAI

client = OpenAI(
    base_url="https://api.llmapi.ai/v1",
    api_key=os.environ["LLMAPI_KEY"],
)

response = client.chat.completions.create(
    model="zai/glm-5.3",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.llmapi.ai/v1",
  apiKey: process.env.LLMAPI_KEY,
});

const response = await client.chat.completions.create({
  model: "zai/glm-5.3",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(response.choices[0].message.content);

curl https://api.llmapi.ai/v1/chat/completions \
  -H "Authorization: Bearer $LLMAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zai/glm-5.3",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Prices synced November 13, 2026.