Z Code brings 5M free daily tokens to GLM-5.2 coding agent
Z AI launched Z Code, a Codex-style coding agent built for GLM models, offering a free tier with 5 million tokens per day using GLM-5.2.
Score breakdown
Z Code gives developers a free, high-capacity alternative to Codex — 5 million tokens per day — backed by GLM-5.2, currently the top-ranked open-weights model on the Artificial Analysis Intelligence Index, under a permissive MIT license.
- 01Z Code is a Codex-style coding agent from Z AI, built and fine-tuned specifically for GLM models.
- 02The free tier provides 5 million tokens per day using GLM-5.2.
- 03The interface closely mirrors OpenAI Codex, with tasks, skills marketplace, MCP servers, plugins, and usage tracking.
Z AI launched Z Code, a coding agent fine-tuned specifically for GLM models, positioning it as the GLM equivalent of OpenAI's Codex for GPT models. The tool offers a free tier granting 5 million tokens per day with GLM-5.2, and can also be accessed through a GLM coding plan or API key. The video by AICodeKing walks through the interface, which closely resembles Codex in both aesthetics and layout, featuring a sidebar with options for new tasks, search, and a skills marketplace where extensions can be installed in one click. Additional settings expose MCP servers, plugins, commands, and a usage/quota tracker accessible by hovering over an on-screen indicator.
A standout feature is remote connectivity — users can link Z Code to messaging platforms like WeChat and trigger agent tasks from anywhere.
In practice, Z Code can generate full projects from a prompt, open a live preview panel with an embedded browser, allow users to reference specific UI elements from the preview directly in the chat for targeted edits, and access DevTools including console logs. A standout feature is remote connectivity — users can link Z Code to messaging platforms like WeChat and trigger agent tasks from anywhere. On the benchmark side, GLM-5.2 is described as the highest-scoring open-weights model on the Artificial Analysis Intelligence Index, performing strongly across coding, reasoning, tool-use, and long-horizon agent tasks, and is released under an MIT license.
That said, the video notes several gaps: there is no built-in file explorer, no proper changelog view for tracking file changes, no worktree support, and no one-click Git initialization. The embedded browser also cannot be controlled by the agent itself, unlike Codex's browser integration. Despite these omissions, the video concludes that Z Code offers strong coding capability and generous free usage for day-to-day AI coding workflows.
Key facts
- 01Z Code is a Codex-style coding agent from Z AI, built and fine-tuned specifically for GLM models.
- 02The free tier provides 5 million tokens per day using GLM-5.2.
- 03The interface closely mirrors OpenAI Codex, with tasks, skills marketplace, MCP servers, plugins, and usage tracking.
- 04Z Code supports live preview, element inspection, DevTools access, and remote messaging platform connectivity (e.g., WeChat).
- 05Missing features include a file explorer, proper changelog view, worktree support, and one-click Git initialization.
- 06GLM-5.2 is described as the highest-scoring open-weights model on the Artificial Analysis Intelligence Index.
- 07GLM-5.2 is released under an MIT license.
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