llamafile – LLM local

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Llamafile, an innovative project developed by Mozilla and Justine Tunney, represents a significant advancement in the use of Large Language Models (LLMs) on local computers. This technology allows for the operation of advanced language models, similar to ChatGPT, directly on one’s own computer.

A llamafile is a comprehensive file that contains both the model weights of an LLM and the necessary code to operate this model. In some cases, it includes a complete local server with a web user interface for interaction. This integration significantly simplifies the use of LLMs, as it eliminates the otherwise necessary separate handling of model and operating code.

The first release of llamafile, which has been made publicly accessible, invites the open-source community to participate in this project. Llamafile converts large language model weights into executable files. For example, a 4 GB file containing LLM weights in the common GGUF format can be transformed into a binary file that runs on six different operating systems without installation.

This development greatly facilitates the distribution and execution of LLMs. Furthermore, Llamafile ensures that a specific set of weights remains usable and provides consistent and reproducible performance, even as models and their weight formats evolve over time.

Llamafile is the result of merging two projects: llama.cpp, a leading open-source framework for LLM chatbots, and Cosmopolitan Libc, a project that enables C programs to be compiled and run on a wide range of platforms and architectures. The development of Llamafile required solving several complex problems, such as integrating GPU support and dlopen() into Cosmopolitan. More details can be read in the project’s README.

Llamafile was developed by Justine Tunney, the creator of Cosmopolitan, and is part of Mozilla’s innovation group. Tunney, who recently collaborated with Mozilla under the MIECO program, had her work on version 3.0 of Cosmopolitan funded by Mozilla. Through Llamafile, she directly contributes to Mozilla’s projects.

Llamafile is licensed under Apache 2.0, and contributions from the community are explicitly welcomed. Changes to llama.cpp made during the development of Llamafile are licensed under the MIT license to facilitate any potential future integration into the main development branch.

More information about llamafile can be found at:




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