GPTLocalhost

GPTLocalhost connects Microsoft Word to language models running on your own computer, so you can draft, rewrite, translate and analyze documents without sending text to a cloud service. It suits people who handle confidential documents and prefer local, private AI.

Instead of shipping its own model, it plugs into local runners you may already use, including Ollama, LM Studio, AnythingLLM, llama.cpp, LocalAI, KoboldCpp, Msty, Xinference, Transformer Lab and Microsoft Foundry Local. LiteLLM can be used when you do want a cloud model.

Demos show cross-document generation and dialogue, switching models mid-session, contract analysis with IBM Granite, Markdown conversion and Apple Intelligence inside Word. Devices can be registered to work fully offline, and a separate intranet product called LocPilot serves teams.