Devin vs Z Code: Side-by-Side Comparison 2026

Devin vs Z Code comparison 2026. Side-by-side features, pricing & capabilities.

Devin is an AI agent from Cognition — fully autonomous ai software engineer. Z Code is an AI IDE from Z.ai (Zhipu AI) — ai-powered code editor from zhipu ai (z.ai).

Devin

Autonomous AI coding agent by Cognition. Handles full development tasks end-to-end. Cognition also owns Windsurf, integrating IDE and agent workflows.

  • ✓ AI chat
  • ✓ Agentic mode
  • ✓ Multi-file editing
  • ✓ Terminal commands
  • ✓ Test generation

$20/mo · 3 plans

Z Code

Desktop code editor from Z.ai (Zhipu AI) powered by GLM models. Integrates multiple AI agents within one interface with codebase understanding, automated code review, and support for external models. Also available as a VS Code extension.

  • ✓ GLM-5 flagship model (77.8% SWE-bench)
  • ✓ 200K token context window
  • ✓ OpenAI-compatible API
  • ✓ Free GLM-4.7-Flash model
  • ✓ Vision capabilities (Pro/Max)

$10/mo · 3 plans

Feature Devin Z Code
Category AgentAI IDE
Starting Price $20/mo $10/mo
Model Family ProprietaryGLM
Open Source NoModels are open-weight (MIT for GLM-4.6)

Pricing verified Mar 20, 2026. Devin pricing | Z Code pricing

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Key Differences

  • Category: Devin is an AI agent; Z Code is an AI IDE.
  • Starting price: Devin starts at $20/mo; Z Code starts at $10/mo.
  • Model family: Devin uses Proprietary; Z Code uses GLM.
  • Open source: Devin: No. Z Code: Models are open-weight (MIT for GLM-4.6).
  • Bring your own key: Z Code supports BYOK; Devin does not.
  • Platforms: Devin runs on Web; Z Code runs on Windows, macOS.
  • Provider: Devin is built by Cognition; Z Code is built by Z.ai (Zhipu AI).

Which Should You Choose?

Choose Devin if you want fully autonomous engineering tasks with minimal supervision. Choose Z Code if you want competitive coding AI starting at $10/mo with free model access. Read our full reviews to see which fits your workflow.

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