GPT4All is Nomic AI's free, open-source app for running LLMs locally and offline. See features, LocalDocs, pricing, and top alternatives.
GPT4All is a free, open-source desktop application from Nomic AI that lets anyone run large language models entirely offline and privately on their own computer, with no GPU, cloud account, or API key required.
Launched in March 2023 by Nomic AI (founded 2022, headquartered in New York), GPT4All quickly became one of the most widely adopted local-LLM tools, reporting over 250,000 monthly active users and roughly 65,000 GitHub stars.
GPT4All pairs a llama.cpp-based local inference engine with a native chat UI, supporting quantized open-weight models like Llama and Mistral, plus an OpenAI-API-compatible local server for existing tools and scripts.
Its standout feature, LocalDocs, indexes a user's own files into on-device embeddings so the model can reference and cite private documents in chat, entirely offline and without any data leaving the device.
GPT4All is completely free with no subscription, usage caps, or paid tier, since the application and the open-weight models it downloads are freely licensed under MIT and similar open licenses.
The only cost to users is their own computer hardware and disk space for storing downloaded models; Nomic AI monetizes separately through its Atlas data-visualization product rather than through GPT4All itself.
GPT4All is a free, open-source desktop application from Nomic AI that lets you download and run large language models locally on your own computer, fully offline.
Yes, GPT4All is completely free with no subscription or usage limits, since it and the models it runs are openly licensed.
No internet connection is needed once models are downloaded, and GPT4All can run on a CPU alone, though a GPU can speed up inference where available.
LocalDocs is a retrieval-augmented-generation feature that indexes your own local files into on-device embeddings so the model can reference and cite them during chat, without any data leaving your device.
GPT4All is built and maintained by Nomic AI, a company founded in 2022 and headquartered in New York that also builds the Nomic Atlas data-visualization platform.
GPT4All itself is released under the MIT license, though the licensing of individual downloadable models varies, so commercial use should be checked against each specific model's license.