GLM 5.2

Z.ai · Released June 2026

GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...

It is part of Z.ai's GLM series, an open-weight line where the 5.x generation leads, Turbo servings cut latency and cost, and 5V adds vision.

Facts and pricing

Provider

Z.ai

Context window

1.0M tokens

Input price

10.6 credits / 1M tokens ($0.97 raw)

Output price

33.4 credits / 1M tokens ($3.04 raw)

Vision (image input)

No

Tool calling

Yes

Extended reasoning

No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.

Try GLM 5.2 now

What GLM 5.2 is best for

• Everyday chat and drafting on an open-weight model with transparent lineage
• Very long documents and codebases: a 1.0M-token window fits entire books or repositories in one conversation
• Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows

Example prompts

Prompts that suit a open weight model like GLM 5.2:

• Draft a project update from these rough notes
• Explain how HTTPS works to a curious teenager
• Turn this list of features into a changelog entry
• Brainstorm objections to this proposal and how to answer them

Z.ai family

All 16 Z.ai models

Compare GLM 5.2

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• GLM 5.2 vs GLM 5.1

Frequently asked questions

What is GLM 5.2?

GLM 5.2 is an AI model by Z.ai. GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level software engineering,...

How much does GLM 5.2 cost on Zeplik?

Input tokens cost 10.6 credits per million and output tokens 33.4 credits per million (1 credit = $0.10; the raw provider rates are $0.97 and $3.04 per million). New accounts start with free credits.

How long can a conversation with GLM 5.2 be?

GLM 5.2 has a 1.0M-token context window (1,048,576 tokens), which covers the conversation plus any documents you attach.

Does GLM 5.2 support images and tools?

GLM 5.2 is text-only and supports tool calling.

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