# OpenSpiel Public Data and Pretrained Checkpoints (`gs://openspiel-data`)

This Cloud Storage bucket hosts public synthetic game datasets and pretrained
reinforcement learning baseline checkpoints accompanying
[OpenSpiel](https://github.com/google-deepmind/open_spiel).

Every object in this bucket can be read anonymously over HTTPS at
`https://storage.googleapis.com/openspiel-data/<path>` or via `gs://openspiel-data/<path>`
with no Cloud account or credentials required.

## Contents

* `checkpoints/scale/gin_rummy/v1/` — Pretrained Oklahoma Gin Rummy agent
  (`gin_rummy(oklahoma=true)`, step `30000`) trained from scratch with
  `open_spiel.python.scale` (`--config=gin_mmd_from_scratch`). See
  [`checkpoints/scale/gin_rummy/v1/README.md`](https://storage.googleapis.com/openspiel-data/checkpoints/scale/gin_rummy/v1/README.md)
  for the model card, configuration, integrity digests, and usage instructions.
* `abstracted-tiny-bridge/` — Precomputed tabular policy arrays (`.npy` / `.npz`)
  for abstracted Tiny Bridge baselines in OpenSpiel.
* `bridge/` — Legacy 2020 contract bridge trajectory dataset and companion
  configuration files; see
  [`bridge/README.txt`](https://storage.googleapis.com/openspiel-data/bridge/README.txt)
  for provenance and third-party software notes.

## License

Copyright 2026 DeepMind Technologies Limited.

Synthetic self-play datasets and pretrained RL checkpoints published by DeepMind
Technologies Limited in this bucket (including `checkpoints/` and
`abstracted-tiny-bridge/`) are licensed under the Creative Commons Attribution
4.0 International Public License ([`LICENSE`](https://storage.googleapis.com/openspiel-data/LICENSE),
[CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)).

* OpenSpiel source code in [`google-deepmind/open_spiel`](https://github.com/google-deepmind/open_spiel)
  is licensed separately under the Apache License, Version 2.0.
* Legacy files under `bridge/` carry their own documentation and third-party
  terms as described in [`bridge/README.txt`](https://storage.googleapis.com/openspiel-data/bridge/README.txt).