UPDATE : As I finish typing this out, Anthropic has lunched pages with everything u need to make it much easier for u than before. So you can simply visit claude.com/import-memory (or you can search "switching to Claude without having to start over").

Everyone switching from ChatGPT to Claude, a note to you for not losing anything when you switch and that you should be clear about your needs right away, even though you'll be starting anew.
Here's how you can do it, step by step:
1. Export your ChatGPT history. Go to Settings > Data Controls > Export Data. Save file.

2. Sign up for the Claude account. Go to claude.ai.

3. Go to Settings > Profile. Write a few sentences about yourself and what kind of responses you prefer to receive. Claude remembers this and will recall it each time you have a conversation.

4. Recreate your GPTs as a Project. In the left sidebar, click New Project and paste in the instructions and upload any additional files.

5. Open your exported ChatGPT conversations from step one. Copy any important information from your ChatGPT conversations and paste it into a newly created Project for Claude so he will have all the context he needs to help you out.

Claude is an excellent writer and good at everything, and I see Claude using this as a chance to continue improving his strengths, as well as improve his weaknesses.
Make sure to cancel your ChatGPT subscription before starting with Claude; Good Luck.

For people who have already made the switch what's your feedback using Claude, any tips for new users would be appreciated.

Reminder of How to move from ChatGPT to Claude without losing anything