GLM 5.1

LLM

Z.AI

GLM 5.1 is designed for agentic engineering and coding. It handles complex, long-horizon problems by breaking them down, running experiments, and iterating over many rounds, improving results the longer it runs.

Context tokens

128,000

Output tokens

8,192

Docs

Model documentation

Released

Apr 7, 2026

Schema

Supports thinking mode.

Schema documentation

Capabilities

Tool use

Structured output

Multilingual

Supported languages

Supported tools

Seclai Web Tools
Fetch web pages and search the web from within agent prompt calls. Includes seclai_web_fetch for retrieving page content in markdown, HTML, or plain text, and seclai_web_search for finding relevant pages with content snippets.

Pricing

Type	Credits	Units
Input	18.62	Credits per 1k tokens
Output	58.52	Credits per 1k tokens
Cache hit	3.46	Credits per 1k tokens

Variants