The Problem with Custom GPTs
OpenAI's Custom GPTs are great, but you don't own the data, and it costs $20/month. Open source alternatives provide the same functionality for free.
AnythingLLM Workspaces
AnythingLLM lets you create 'Workspaces'. Each workspace can have its own system prompt, its own set of PDF documents (RAG), and its own local model. It is the perfect Custom GPT replacement.
Open-WebUI
Open-WebUI (formerly Ollama WebUI) provides a ChatGPT-like interface where you can easily create and share custom agent personas that connect to your local Ollama models.