Emoji Studio, my project for HF Build Small Hackathon (Social Post)

Ever wished there was an emoji for something hyper-specific that doesn't exist? Now imagine your chatbot could actually use it. That's Emoji Studio, my Build Small Hackathon project.

Just ask in chat "make me a happy hippo emoji" and it generates a brand-new sticker for you (FLUX.1-schnell + background removal via Rembg). You then tell it what the emoji means and when to use it, and it gets added to your personal collection.

From there, two things happen: you can drop it into messages yourself via a picker, and the chatbot (Qwen3-8B) learns it too, it'll naturally weave your custom emoji into replies when the context matches, all via in-context learning.

The fun part is the emergent "shared language" that builds up over a conversation. The tradeoff: every emoji adds to the system prompt, so it doesn't scale infinitely, but for a hackathon weekend it turned out as a fun proof that you can teach a model a vocabulary it's never seen, just by describing it well.

Built entirely on the HF Inference API, hosted as a Hugging Face Space. 🤗

Video Demo

Try it out