Openrouter and some of the models hosted are free.

Google colab but depends on how long google will let you use it for free (you can also pay monthly)

I had done something similar and set up a little chat bot with whisper, stable diffusion, llava and speech to text (me know if you want me to send you a link) but I hadn’t seen before what you did with the google-colab-output eval js cell. Is that basically a way to create a tunnel without having to use trycloudflare or similar? If so that’s awesome!