mozilla-ai/llamafile

llamafile is a single-file executable tool that distributes and runs large language models locally across operating systems and CPU architectures without installation.

The tool solves the complexity of deploying open-source LLMs by combining llama.cpp with Cosmopolitan Libc into a unified framework. This approach packages everything needed to run a model into one executable file that works on most platforms with no setup required. The project also includes whisperfile, a companion single-file speech-to-text tool built on whisper.cpp that handles audio transcription and translation across the same range of platforms.

Developers should choose this tool if they want to distribute LLMs to end users without requiring installation steps or complex dependency management. It suits projects where portability and simplicity are priorities, particularly when targeting users across different operating systems. The tool works with GGUF format models and supports both bundled models and external weights. Users with powerful hardware or GPUs can select larger models for better accuracy, though Windows users should note that executables above 4GB require downloading the llamafile binary separately and running it with external model files.

The project underwent a significant rebuild starting from version 0.10.0 to align more closely with recent llama.cpp releases, enabling support for newer models and features while acknowledging that some previous functionality was not carried forward. The team maintains pre-built llamafiles with clear version labeling so users know which server version they are downloading. The project actively solicits user feedback through discussions and blog posts about what features matter most and where improvements would add value.