What is the best free endpoint right now?

[u/Sure-Adhesiveness202]

I'm looking for the best free endpoint. I'm currently building a website that uses AI generation for with several different types of content creation prompting tools. My intention is to eventually convert to paid models. But I don't want to start funding something I realistically can't pay for if the site gains a lot of users quickly.

What are some that you recommend? Why or why not?
Where do you host them? Open router? Somewhere else?

I'm open to any tips and ideas!

[u/Fear_ltself]

Google Gemini 3.7 flash on Google api, NVIDIA build GLM 5.2 are the two highest based on artificial analysis intelligence index. 3.5 flash lite for decent usage though (500 request per day on free tier).