How much does GLM 5.3 Prime cost?

GLM 5.3 Prime is billed pay-as-you-go at $3.08 per 1M input tokens and $9.68 per 1M output tokens. There is no subscription — you only pay for what you use.

What can GLM 5.3 Prime do?

GLM 5.3 Prime supports Tool calling.

Is GLM 5.3 Prime free to use?

GLM 5.3 Prime is a paid, pay-as-you-go model — no subscription, you are only charged for usage.

How do I use GLM 5.3 Prime via the API?

GLM 5.3 Prime is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID glm-5.3-prime with your Api.Airforce API key.

Who makes GLM 5.3 Prime?

GLM 5.3 Prime is Z.ai's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

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GLM 5.3 Prime

API model name: glm-5.3-prime

GLM 5.3 Prime is Z.ai's chat model, served on the Api.Airforce unified API. Capabilities include Tool calling. It is priced at $3.08 per million input tokens and $9.68 per million output tokens. That is below the provider's $2.80 official input rate. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

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Pricing

Input / 1M tokens

$3.08

Output / 1M tokens

$9.68

Cache read / 1M tokens

$0.62

Official input rate

$2.80

Official output rate

$8.80

Api.Airforce price vs. the provider's official rate.

Specifications

Provider: Z.ai
Type: chat model

Capabilities

Tool calling

What is GLM 5.3 Prime used for?

Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
Agents & automation — function calling and tool use for multi-step workflows.

GLM 5.3 Prime vs. similar models

Model	Intelligence	Context	Input / 1M	Output / 1M
GLM 5.3 Prime	—	—	$3.08	$9.68
GLM 4	—	—	$6.10	$7.72
GLM 4 Airx	—	—	$0.58	$0.62
GLM 4 Long	—	—	$0.08	$0.12

Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.

GLM 5.3 Prime — frequently asked questions

How much does GLM 5.3 Prime cost?: GLM 5.3 Prime is billed pay-as-you-go at $3.08 per 1M input tokens and $9.68 per 1M output tokens. There is no subscription — you only pay for what you use.
What can GLM 5.3 Prime do?: GLM 5.3 Prime supports Tool calling.
Is GLM 5.3 Prime free to use?: GLM 5.3 Prime is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use GLM 5.3 Prime via the API?: GLM 5.3 Prime is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID glm-5.3-prime with your Api.Airforce API key.
Who makes GLM 5.3 Prime?: GLM 5.3 Prime is Z.ai's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

All models·Quickstart·Chat API reference

Use GLM 5.3 Prime via the API

OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass glm-5.3-prime as the model.

cURL

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

Python

from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
    model="glm-5.3-prime",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
  model: "glm-5.3-prime",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);