> For the complete documentation index, see [llms.txt](https://gptt.gitbook.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gptt.gitbook.io/en/ecology.md).

# ecology

- [AI Factory](https://gptt.gitbook.io/en/ecology/factory.md): The first social learning-based earning application on the GPTT.AI platform
- [Quiz To Earn (Include Answer)](https://gptt.gitbook.io/en/ecology/quiz.md): Answer questions for free every day, and if you pass the challenge, you will receive energy balls and AI training vouchers.
- [AI Friends](https://gptt.gitbook.io/en/ecology/ai-friends.md): AI Friend is an anthropomorphic voice chat application.