The fundamental difference
ChatGPT Plus is a conversation tool. You ask, it answers. OpenClaw is an action tool. You ask, it does.
What ChatGPT Plus does well
What OpenClaw does that ChatGPT can't
The verdict
If you need a smart chat assistant, ChatGPT Plus at $20/mo is great. If you need an AI that actively manages parts of your work life, OpenClaw (via KanaHost) is the upgrade worth making.