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Licensing

relarena is licensed under the Apache License, Version 2.0. LICENSE is the license; NOTICE is the attribution that travels with it. Those two files are authoritative — this page only says where things live.

Scope

Apache-2.0 covers the RelArena code in this repository. The separate tabpfn-rel package distributes its model code under its own Apache-2.0 LICENSE and NOTICE.

Two things it does not cover:

  • Vendored third-party code. The RelBench, RelGNN, and RelGT model building blocks are MIT and stay MIT. NOTICE lists them; the upstream license texts are in packages/relarena/src/relarena/models/VENDORED-LICENSES.
  • Datasets. None are distributed with this package. relbench fetches them at runtime, and they remain subject to their own upstream terms.

Dependency licenses

tabpfn is not Apache-2.0 — it ships the Prior Labs License, which adds an attribution requirement. It is confined to the rdblearn and tabpfn-rel-* extras, so a plain install does not acquire it. Read the license itself for what it obliges; the README summarizes it for anyone installing those extras.

workflows/audit_licenses.py --check fails if a dependency that reaches users is copyleft, non-commercial, or declares a license it does not recognize. It runs in CI on every change to pyproject.toml or uv.lock, and --output writes the full per-package report, which CI keeps as a build artifact rather than committing.