Compare Codex CLI vs ChatGPT Plus vs Notion AI
| Feature | Codex CLI | ChatGPT Plus | Notion AI |
|---|---|---|---|
| Description | OpenAI's lightweight coding agent that runs in your terminal. Built for: Developers already using OpenAI who want a local coding agent. Format: CLI. License: Apache-2.0. Open source on GitHub (128,665 stars as of 2026-10-11). | Advanced AI assistant for writing, coding, and problem-solving | AI-powered workspace and knowledge management |
| Pricing | Free and open source; self-hosting, model or API costs may apply | $20/month | $10/month |
| Main category | Coding | Chat assistants | Research and notes |
| Website | Visit Codex CLI | Visit ChatGPT Plus | Visit Notion AI |
| Info last checked | October 12, 2026 | October 12, 2026 | October 12, 2026 |
Loading selector…