Huawei DevEco Code Free Guide: Unlimited GLM-5.1 for HarmonyOS

DevEco Code is Huawei’s open-source AI Agent tool for HarmonyOS/ArkTS development. It comes with a built-in GLM-5.1 free model and 5 HarmonyOS-specific Skills.

What is DevEco Code

DevEco Code is a standalone CLI tool for HarmonyOS development. It supports code generation, building, error fixing, and the full development lifecycle.

Key features:

• Built-in GLM-5.1 — Free model included, no API Key needed
• 5 HarmonyOS Skills — Pre-configured for ArkTS development
• Code generation — Generate code from natural language
• Build support — Automated build processes
• Error fixing — Automatic error detection and repair

Free Policy

GLM-5.1 built-in — The model is included with the tool, no separate API Key or subscription needed.

Free for HarmonyOS developers — If you’re developing for HarmonyOS, this is the go-to tool.

Limitations

• Standalone CLI — Cannot integrate with Cursor, Claude Code, Windsurf, or other third-party tools
• HarmonyOS focused — Best for ArkTS/HarmonyOS development, not general-purpose
• Limited ecosystem — Smaller community compared to mainstream tools

Who Should Use This

• HarmonyOS developers — Best tool for ArkTS development
• Want free GLM-5.1 — No API Key needed
• Building HarmonyOS apps — Pre-configured Skills for the platform

Summary

DevEco Code is Huawei’s free AI coding tool for HarmonyOS developers. Built-in GLM-5.1, no API Key needed. Best for ArkTS development.

Project: developer.huawei.com

Data current as of July 14, 2026.