Open source activity
As of Nov 6, 2026
Google's open-source footprint across its AI-relevant orgs (TensorFlow, Google DeepMind, Google Research) is still led by TensorFlow itself — over 201,000 stars and still getting fresh commits a decade-plus into its life, even as most new research code elsewhere has moved to PyTorch-based stacks. Alongside that legacy flagship, DeepMind's most recently touched repos lean heavily toward robotics and physical simulation: MuJoCo Playground for sim-and-real robot demos, and a lower-profile "reaf-sim" simulation framework for real robot workflows.
The outlier is TORAX, a DeepMind-built tokamak fusion-reactor transport simulator written in JAX — a reminder that DeepMind's science-for-good research line extends well past language and vision models into physics simulation most AI labs never touch. Google Research's own recent repos (swirl-dynamics, a dynamical-systems modeling toolkit; nodesyn) are smaller and more niche by comparison, suggesting the more actively maintained work right now sits with DeepMind's robotics and science teams rather than Google Research's general ML group.
Most active repositories
| Repository | Description | Language | Stars | Last pushed |
|---|---|---|---|---|
| tensorflow/tensorflow | An Open Source Machine Learning Framework for Everyone | C++ | 201,353 | Nov 6, 2026 |
| google-deepmind/mujoco | Multi-Joint dynamics with Contact. A general purpose physics simulator. | C++ | 16,081 | Nov 6, 2026 |
| google-deepmind/mujoco_playground | An open-source library for sim and real robot demos on top of MuJoCo. | Python | 2,273 | Nov 6, 2026 |
| google-deepmind/reaf-sim | native MuJoCo environment authoring framework built for robotics | Python | 11 | Nov 6, 2026 |
| google-deepmind/formal-conjectures | A collection of formalized statements of conjectures in Lean. | Lean | 1,352 | Nov 6, 2026 |
| google-research/openfst | Finite-state Transducer (FST) Library. | C++ | 70 | Nov 6, 2026 |
| google-research/google-research | Google Research | Jupyter Notebook | 39,122 | Nov 6, 2026 |
| google-research/jax3d | — | Python | 763 | Nov 6, 2026 |
| google-deepmind/cryptids | Some Cryptids and Lean proofs | Lean | 72 | Nov 6, 2026 |
| google-research/perch | — | Python | 403 | Nov 6, 2026 |
| google-deepmind/torax | TORAX: Tokamak transport simulation in JAX | Python | 750 | Nov 6, 2026 |
| google-deepmind/mujoco_warp | GPU-optimized version of the MuJoCo physics simulator, designed for NVIDIA hardware. | Python | 1,607 | Nov 6, 2026 |
| google-research/kauldron | Modular, scalable library to train ML models | Python | 358 | Nov 6, 2026 |
| tensorflow/privacy | Library for training machine learning models with privacy for training data | Python | 2,038 | Nov 6, 2026 |
| google-research/swirl-dynamics | Swirl-Dynamics is a python repository that provides implementations of models, benchmarks and utilities for dynamical systems. | Jupyter Notebook | 96 | Nov 6, 2026 |
| google-research/connectomics | — | Python | 68 | Nov 6, 2026 |
| google-deepmind/treescope | An interactive HTML pretty-printer for machine learning research in IPython notebooks. | Python | 478 | Nov 6, 2026 |
| google-research/opengrm | Formal grammars and related representations | C++ | 16 | Nov 6, 2026 |
| google-deepmind/agentic_ecology | — | Python | 12 | Nov 5, 2026 |
| tensorflow/tflite-micro | Infrastructure to enable deployment of ML models to low-power resource-constrained embedded targets (including microcontrollers and digital signal processors). | C++ | 3,145 | Nov 5, 2026 |