⚠️ Disclaimer: This method is not foolproof, but still better than nothing 🤷‍♂️

Photo or drawing

https://app.illuminarty.ai/#/

https://isitai.com/ai-image-detector/

(reverse image search)

https://tineye.com/

https://yandex.com/images/

https://images.google.com/

Text from blogs or articles

https://gptzero.me/

https://copyleaks.com/ai-content-detector

More similar tools

Video from Youtube (audio content)

1 - Transcribe the audio using some online tools like : https://anthiago.com/transcript/

2 - Check the text with the tools from above 🔎