the tech stack is seemingly becoming. 

colab w/gemini (data science)
cursor w/claude (frontend & backend)
replit w/???? (backend / internal tooling)
fine-tuning model w/chatgpt

I'm sure i'm missing things.

Replit has Sonnet built into their tools and AI chat now

FID 1580 | dad. exec director @ SkillsEngine. product. design. art. code. philosophy. technology. economics. systems.

They definitely also have their own model(s) as options in there. Sonnet is an option only for paid accounts (last I checked)

Thank you did a lite search but didn’t find anything explicit. It almost seemed like they took llama and added to it in their own way. 

But I guess not.