Except for GPT, what free AI tools that you recently discovered and consistently helped you out?

Claude.ai, it's as good as GPT, especially for content writing or rewriting.

Our own AI product MailMaestro has significantly boosted my team's productivity. our tool leverages GPT technology and different LLMs that help you summarize threads and attachments, reply to emails and meeting requests in one click, and draft high quality emails in your preferred tone and language. We would love for you to check us on Outlook and Gmail

I've recently started using HELF AI, and it is great for medical professionals. It helps with research, clinical-based insights, breaking down of complex medical data, and many more. I actually recommend HELF to anybody in the medical field.