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GLM 5.2

GLM 5.2 is Z.AI's flagship open-weight model with a 1M token context window, delivering strong performance across reasoning, coding, agentic workflows, and long-context tasks.

ReasoningTools
Context 1.0M·Max out 128K

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/z-ai/glm-5.2'),
  prompt: 'Why is the sky blue?',
});

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

Specs & pricing

Input $/M
0.93
Output $/M
3
Context window
1.0M
Max output
128K
Supported parameters
tool-usereasoningstreamingjson-mode

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