Link parkin’: Open WebUI, a well done, open source, frontend to LLM APIs. From the Open WebUI docs:
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI interface designed to operate entirely offline. It supports various LLM runners, including Ollama and OpenAI-compatible APIs.
Interestingly the project has an academic looking paper on building a platform for LLM evaluation and auditing attached.