Licence

An AI system you rely on should be one you can read, check and change, and one no one can take away from you. So all of G6 is open source.

G6 is free and open source, under the Apache License, Version 2.0.

• Use it, change it and share it, for any purpose, including in commercial products.
• When you share it, include the licence and the NOTICE file, and say which files you changed.
• Patents: each contributor grants you a licence to any of their patents the code uses. It ends for anyone who sues claiming G6 infringes a patent.
• No warranty: G6 is provided "as is". You decide whether it is fit for your use.
• Nothing expires. There are no paid plans, licence keys or licence checks. Your files and everything G6 stores stay yours, in your own folders.

The LICENSE and NOTICE files in the code are the binding text; this page is a plain summary of them. Material from other projects keeps its own licence, listed in NOTICE.

Third-party skills

G6 ships 14 skills from superpowers, by Jesse Vincent, so a coding agent can follow a full software lifecycle with G6. They are unchanged, under the MIT License (Copyright (c) 2025 Jesse Vincent), whose text travels with them. g6 skills install --with-superpowers copies them into your agent's skills folder.

Optional extras

An extra you install from your copy of G6, such as pip install ".[image]", brings other projects' packages under their own licences. One kind differs: on Linux, the extras that need PyTorch install it with NVIDIA's CUDA libraries, so it can use your graphics card. They are the lora extra (training a small model on your own computer), the torch extra (training a small neural network on your rows), the colbert extra and the embeddings extra (ranking passages by meaning), and the nli extra (a local model that reads whether a passage supports a claim, for the source check). Those libraries come under NVIDIA's own licence, not an open-source one. G6 does not need them otherwise, and no other extra installs them.