What is GPTLocalhost?
GPTLocalhost is a Microsoft Word add-in that connects Word to large language models running on your own computer or to cloud models you choose. It is designed around a local-first approach, so documents can be processed without sending content to outside services when a local LLM server is used.
The tool works with LLM servers you install yourself. The site lists tested options including AnythingLLM, LiteLLM, LM Studio, Ollama, llama.cpp, LocalAI, KoboldCpp, Xinference and OpenLLM, and notes that GPTLocalhost does not provide any LLM server itself. Within Word you can use AI for writing and editing tasks, with the paid plans adding features such as show diff, Markdown conversion and unlimited text length.
Key features
- Runs inside Microsoft Word as an add-in
- Works with local LLM servers such as Ollama and LM Studio
- 100% local and private processing on the free plan
- Show diff of AI edits (paid plans)
- Markdown conversion (paid plans)
- Email support and automatic upgrades (paid plans)
Who is it for
- Writers and editors working in Microsoft Word
- Users who need privacy and offline AI
- Teams and individuals who want to run their own LLMs
Pros and cons
- Local and private processing with no document content sent to the cloud
- Choice of LLM server and model
- Requires you to install and run a separate LLM server yourself
- Free plan has limits such as 20000 characters and no advanced features
GPTLocalhost pricing
| Plan | Price | Includes |
|---|---|---|
| Free | 0 | Basic features, 20000 characters max, no advanced features |
Prices copied from the vendor website, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
GPTLocalhost pricing details →
Is GPTLocalhost free?
Yes, there is a free plan. Free plan: 100% local and private, basic features, no credit card required; limited to 20000 characters max, no show diff, no Markdown conversion, no email support.
GPTLocalhost alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 QuillBot | not listed | ? | Writing & editing |
 Grammarly | 12 USD/mo | yes | Writing & editing |
 Sudowrite | 10 USD/mo | trial | Writing & editing |
 Wordtune | 4.89 USD/mo | yes | Writing & editing |
 LanguageTool | 49,90 PLN/mo | yes | Writing & editing |
 Phrasly | 2.00 USD | trial | Writing & editing |
All alternatives to GPTLocalhost →
FAQ
What is GPTLocalhost used for?
Local-first AI add-in that lets you use your favorite LLMs directly inside Microsoft Word, offline and privately.
Is GPTLocalhost free?
Yes, there is a free plan. Free plan: 100% local and private, basic features, no credit card required; limited to 20000 characters max, no show diff, no Markdown conversion, no email support.
How much does GPTLocalhost cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best GPTLocalhost alternatives?
Closest alternatives: QuillBot, Grammarly, Sudowrite, Wordtune, LanguageTool.
Data checked October 12, 2026 on the vendor website (gptlocalhost.com).