The short answer
Both handle practice admin well. A prompt written for one works in the other. Try both free for a week. Keep the one whose writing you like. The tool matters less than the prompt.
Writing quality: where they differ
Claude tends to write in a warmer, more natural voice on the first try. ChatGPT is strong and versatile, sometimes a touch more formal. For client-facing copy like bios and emails, most therapists prefer Claude's first drafts. For structured documents like checklists and templates, both are excellent. You will edit either way.
Free tiers: what you actually get
Both offer capable free tiers. Free is enough to run every prompt in the Playbook. Paid tiers buy you higher limits and newer models, not better basic admin help. Start free. Upgrade only if you hit the limits.
Ease of use
Both live in your browser. No install. ChatGPT has more integrations and a bigger ecosystem. Claude has a cleaner, calmer interface. Neither needs technical skill. If you can use email, you can use both.
The privacy rule applies to both
Neither tool is a HIPAA-covered service on a standard plan, and that does not matter for admin work. The rule is the same everywhere: no client names, no session content, no diagnoses go into any AI tool. Practice operations only. Every Playbook prompt is built for that.
The verdict
Pick the writing you prefer. Seriously. Run the same prompt in both, read both answers, and keep the tool that sounds more like you. Then stop shopping and start using. Your prompts matter more than your platform.
Questions, answered
Do the Playbook prompts work in both ChatGPT and Claude?
Yes. Every prompt was tested in both. Copy, paste, run. No rewriting needed.
Do I need the paid version of either tool?
No. The free tiers handle everything in the Playbook. Pay only if you use AI so much you hit the free limits.
Is it safe to put practice information into these tools?
Practice operations content like fee schedules and policy drafts is fine. Client information is never fine. No names, no session content, no diagnoses, in any tool, ever.