GLM 4.5 Air

GLM-4.5 and GLM-4.5-Air are our latest flagship models, purpose-built as foundational models for agent-oriented applications. Both leverage a Mixture-of-Experts (MoE) architecture. GLM-4.5 has a total parameter count of 355B with 32B active parameters per forward pass, while GLM-4.5-Air adopts a more streamlined design with 106B total parameters and 12B active parameters.

ReasoningToolsCache

Context 128K·Max out 96K

Quickstart

import { streamText } from 'ai';
import { createOpenAICompatible } from '@ai-sdk/openai-compatible';

const blackbox = createOpenAICompatible({
  name: 'blackbox',
  apiKey: process.env.BLACKBOX_API_KEY!,
  baseURL: 'https://api.blackbox.ai/v1',
});

const result = streamText({
  model: blackbox('blackboxai/zai/glm-4.5-air'),
  prompt: 'Why is the sky blue?',
});

for await (const chunk of result.textStream) {
  process.stdout.write(chunk);
}

Specs & pricing

Input $/M: 0.2
Output $/M: 1.10
Context window: 128K
Max output: 96K
Supported parameters: —

Related models

Model	Type	Context	Input $/M
GLM 4.5	Text	128K	0.6
GLM 4.5V	Text	66K	0.6
GLM 4.6	Text	200K	0.6
GLM-4.6V	Text	128K	0.3
GLM-4.6V-Flash	Text	128K	—