ไทยYour ideas. Your AI. Your space.
Describe what you imagine. Watch your room take shape in Sepja.
Sepja + ChatGPT
Sepja is now available in the ChatGPT plugin directory. Connect your account and start designing with a conversation.
No ZIP download or manual server setup needed.
From a conversation to a room
- Open Sepja in ChatGPT and choose Connect.
- Sign in to Sepja, or create an account. Continue with Google is the quickest way. If you use email, verify your address to continue.
- Approve the connection, then return to ChatGPT and ask Sepja to create or find a room.
- Open the room link to explore it in 3D. Keep it open to see your next changes.
Try a first idea
Create a 6 by 5 metre living room with a sage sofa and an oak table.
Then try moving the sofa, changing the floor or adding a window. Your room and its edit history are saved in Sepja.
Have a photo or sketch? Add it to the room’s References panel in Sepja and ask your AI to use it.
Already have a space?
Ask ChatGPT to find your Sepja rooms. You can continue an existing design and ask about changes you made on the canvas.
Manage connected apps · Explore the gallery
Using Claude or another assistant?
Sepja also connects to compatible assistants through MCP. Use the connection guide for your assistant. Read the connection guide