Codex vs Kimi Code: Side-by-Side Comparison 2026

Codex vs Kimi Code comparison 2026. Side-by-side features, pricing & capabilities.

Codex is an AI agent and a CLI-based coding agent from OpenAI — asynchronous autonomous coding agent. Kimi Code is a CLI-based coding agent from Moonshot AI — ai coding agent with deep context understanding.

Codex🏆 Approved

OpenAI's autonomous coding agent. Available via web, desktop app (macOS), CLI (macOS/Linux/Windows), and VS Code extension.

  • ✓ Code completions
  • ✓ AI chat
  • ✓ Agentic mode
  • ✓ Multi-file editing
  • ✓ Terminal commands

Free / $8/mo · 6 plans

Kimi Code

Autonomous AI coding agent by Moonshot AI. Available as a CLI tool and VS Code extension (technical preview). Built on the Kimi K2.5 model with long-context capabilities.

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

Free / $19/mo · 4 plans

Feature Codex Kimi Code
Category Agent / CLICLI
Starting Price Free Free
Model Family GPT / CodexKimi
Open Source Yes (CLI)Yes (CLI is open source)

Pricing verified Feb 25, 2026. Codex pricing | Kimi Code pricing

Share

Key Differences

  • Category: Codex is an AI agent and a CLI-based coding agent; Kimi Code is a CLI-based coding agent.
  • Starting price: Codex starts at $8/mo; Kimi Code starts at $19/mo.
  • Model family: Codex uses GPT / Codex; Kimi Code uses Kimi.
  • Open source: Codex: Yes (CLI). Kimi Code: Yes (CLI is open source).
  • Bring your own key: Codex supports BYOK; Kimi Code does not.
  • Platforms: Codex runs on Linux, Web, Windows (experimental), macOS; Kimi Code runs on Linux, Windows, macOS.
  • Provider: Codex is built by OpenAI; Kimi Code is built by Moonshot AI.

Which Should You Choose?

Choose Codex if you want asynchronous coding tasks you can fire off and review when ready. Choose Kimi Code if you want AI-powered coding with strong context understanding. Read our full reviews to see which fits your workflow.

Share