GLM Delegation

Overview

GLM ships no CLI of its own. Z.ai serves an Anthropic-compatible endpoint, so the stock claude binary reaches GLM by changing two environment variables and nothing else. This is the endpoint-swap archetype: the redirection is environment, never argv.

GLM-5.3 was released on 2026-08-14 and claims a large coding gain over GLM-5.2 from post-training alone.

When To Use

• delegation-core selected glm for the task
• A 1M-token context is wanted through glm-5.3[1m]
• A GLM Coding Plan subscription should absorb the work instead of the Anthropic quota