Z.ai
Open weightsglm-4.5-air
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but wit
Aggregated modalities
Channel
Each channel is compared at its lowest input-price tier; output breaks ties. A dash means /api/pricing does not provide that rate. Selecting a channel updates the endpoints and call example below.
ChannelUSD per 1M tokensInputOutputCache readCache write
z-ai/glm-4.5-airInput
$0.20 USD per 1M tokens
Output
$1.10 USD per 1M tokens
Cache read
$0.03 USD per 1M tokens
Cache write
- USD per 1M tokens
Endpoints
POST
/v1/chat/completionsChat CompletionsCall it
Using z-ai/glm-4.5-air
1from openai import OpenAI23client = OpenAI(4 base_url="https://www.realrelay.ai/v1",5 api_key="sk-***",6)78response = client.chat.completions.create(9 model="z-ai/glm-4.5-air",10 messages=[{"role": "user", "content": "Hello"}],11)1213print(response.choices[0].message.content)1import OpenAI from "openai";23const client = new OpenAI({4 baseURL: "https://www.realrelay.ai/v1",5 apiKey: process.env.REALRELAY_API_KEY,6});78const response = await client.chat.completions.create({9 model: "z-ai/glm-4.5-air",10 messages: [{ role: "user", content: "Hello" }],11});1213console.log(response.choices[0].message.content);1curl https://www.realrelay.ai/v1/chat/completions \2 -H "Authorization: Bearer $REALRELAY_API_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "z-ai/glm-4.5-air",6 "messages": [{ "role": "user", "content": "Hello" }]7 }'Prices and availability as published on Oct 4, 2026.
Capabilities
ReasoningTool use
Input
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Output
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