GLM-4.5 Air API

zhipu/glm-4.5-air
GLM-4.5-Air excels at the intersection of hardware cost-efficiency and high-quality, long-context reasoning capabilities, positioning itself as a highly practical and versatile solution for demanding real-world applications.
Context
128K tokens
Input
$0.26 / 1M tokens
Output
$1.43 / 1M tokens
Released
Sep 9, 2025

How to use GLM-4.5 Air API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to zhipu/glm-4.5-air.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "zhipu/glm-4.5-air",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "zhipu/glm-4.5-air",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"zhipu/glm-4.5-air","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

GLM-4.5 Air API Pricing

TypePrice
Input
$0.26 / 1M tokens
Output
$1.43 / 1M tokens
Cached input
$0.039 / 1M tokens

GLM-4.5 Air Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
MMLU-Pro
81.4%
Multi-discipline knowledge + reasoning (harder MMLU)SourceJuly 8, 2026
Terminal-Bench
30%
Autonomous shell/terminal task completionSourceJuly 8, 2026
SWE-bench Verified
57.6%
Resolving verified real GitHub issuesSourceJuly 8, 2026
Intelligence
11.1
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Math
80.7
Composite score across standardised mathematics evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

GLM-4.5 Air vs other models

ModelInputOutputContextBest for
GLM-4.5 Air
This page
$0.26 / 1M tokens
$1.43 / 1M tokens
128K tokens
Reasoning + agents
$6.5 / 1M tokens
$39 / 1M tokens
1M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$1.95 / 1M tokens
$11.7 / 1M tokens
1M tokens
Reasoning + agents

Frequently asked questions

GLM-4.5 Air has a 128,000 tokens context window and can return up to 98,000 tokens.

GLM-4.5 Air takes text as input and returns text.

Use zhipu/glm-4.5-air as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

GLM-4.5 Air became available on September 9, 2025.

GLM-4.5 Air is priced at input $0.26 / 1M tokens, output $1.43 / 1M tokens, cached input $0.039 / 1M tokens.

Yes, GLM-4.5 Air can stream responses as they are generated.

GLM-4.5 Air was built by Zhipu AI.

Yes, it supports function calling, parallel tool calls, and structured output as part of its tool use capabilities.

Start building with GLM-4.5 Air

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