How much does GLM 4.5 cost?

GLM 4.5 is billed pay-as-you-go at $0.70 per 1M input tokens and $2.40 per 1M output tokens. There is no subscription — you only pay for what you use.

GLM 4.5 is Zai's chat model, accessible through the Api.Airforce API.

Is GLM 4.5 free to use?

GLM 4.5 is a paid, pay-as-you-go model — no subscription, you are only charged for usage.

How do I use GLM 4.5 via the API?

GLM 4.5 is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID glm-4.5 with your Api.Airforce API key.

GLM 4.5 is Zai's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

ZaiPaidOperational

GLM 4.5

API model name: glm-4.5

GLM 4.5 is Zai's chat model, served on the Api.Airforce unified API. It is priced at $0.70 per million input tokens and $2.40 per million output tokens. That is below the provider's $0.60 official input rate. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

Get an API key View pricing

Pricing

Input / 1M tokens

$0.70

Output / 1M tokens

$2.40

Official input rate

$0.60

Official output rate

$2.20

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

Specifications

Provider: Zai
Type: chat model

Benchmarks

Independent evaluations and measured speed from Artificial Analysis.

Intelligence Index

26.4/100

Coding Index

26.3/100

Math Index

73.7/100

MMLU-Pro84%

GPQA Diamond78%

Humanity's Last Exam12%

LiveCodeBench74%

AIME 202574%

MATH-50098%

Output speed49.7 tok/s

Time to first token1.02 s

Source: Benchmark data by Artificial Analysis (artificialanalysis.ai)

What is GLM 4.5 used for?

Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.

GLM 4.5 vs. similar models

Model	Intelligence	Context	Input / 1M	Output / 1M
GLM 4.5	26.4	—	$0.70	$2.40
GLM 4.6	32.5	—	$0.45	$1.65
GLM 4.7	42.1	—	$0.70	$2.40
GLM 4.7 Flash	30.1	131K	Free	Free

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

GLM 4.5 — frequently asked questions

How much does GLM 4.5 cost?: GLM 4.5 is billed pay-as-you-go at $0.70 per 1M input tokens and $2.40 per 1M output tokens. There is no subscription — you only pay for what you use.
What can GLM 4.5 do?: GLM 4.5 is Zai's chat model, accessible through the Api.Airforce API.
Is GLM 4.5 free to use?: GLM 4.5 is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use GLM 4.5 via the API?: GLM 4.5 is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID glm-4.5 with your Api.Airforce API key.
Who makes GLM 4.5?: GLM 4.5 is Zai's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

All models·Quickstart·Chat API reference

Use GLM 4.5 via the API

OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass glm-4.5 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-4.5",
    "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-4.5",
    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-4.5",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);