Alternatives

Products that do what OpenAI Gym does

Open source interface to reinforcement learning tasks

1. 1
   OpenAI Universe▲329

   Platform for measuring and training AI agents

   2016

2. 2MG
   Multi-GPU Reinforcement Learning in Tensorflow for OpenAI Gym▲58

   2016 · github.com

3. 3AB
   A batched, concurrent wrapper for OpenAI gym library▲12

   Hello HN, new user here, so please let me know if I break some rules. Currently I've been working on training reinforcement learning agents, and OpenAI gym, while is great, runs only one agent at a time. Hence I decided to extend it. I built a wrapper around OpenAI gym, such that it now runs several environments concurrently. All while (mostly) having the same call signature as OpenAI gym. And it is published to PyPI for anyone interested. For more details, please visit: https://github.com/Chimpan-Z/agymc Feedback really appreciated! Have a good day everyone!

   2020

4. 4
   CheckiO▲102

   Open platform for AI competitions

   2014

5. 5IA
   InfiniteGPU, An open-source AI compute network,now supporting training▲5

   Jan 2026 · github.com

6. 6SN
   Surf.new – An open-source alternative to OpenAI Operator▲9

   2025 · surf.new

7. 7SN
   Surf.new – An open-source alternative to OpenAI Operator▲7

   2025 · github.com

8. 8AG
   A GUI for OpenAI's GPT-2 774M model▲11

   2019 · storyai.botsociety.io

9. 9OS
   Open Source Reinforcement Fine-Tuning for Your Agents▲5

   2025 · augento.ai

10. 10OC
    OpenAI Codex for Free with GitHub Models▲7

    2025 · gist.github.com

11. 11OS
    Open-Source Desktop AI Webscraper▲9

    2023 · github.com

12. 12BO
    Beating OpenAI's structured outputs on cost, accuracy and speed▲8

    2024 · boundaryml.com

13. 13BO
    Bashi – open-source and extensible AI assistant platform and app▲9

    2023 · github.com

14. 14AS
    AI-SDK-Cpp – Unified C++ SDK for OpenAI, Anthropic, and More▲5

    2025 · github.com

15. 15AO
    An Open Source Version of OpenAI Assistants API▲5

    2023 · twitter.com

16. 16CC
    CodeSpin - Code generation framework and tools using OpenAI APIs▲7

    2023 · github.com

17. 17TA
    TensorForce: A TensorFlow library for applied reinforcement learning▲7

    2017 · reinforce.io

18. 18FA
    Free AI tailored workout generator▲9

    2024 · workoutgenerator.fit

19. 19OS
    Open-Source AI Forms Using Generative UI▲5

    2024 · github.com

20. 20IA
    Illa.ai – Open-Source AI Agent and AI Native App Community▲6

    2023 · illa.ai

21. 21LG
    Lelu – gate OpenAI agent actions on confidence and prompt injection▲6

    Jun 2026 · github.com

22. 22SM
    Second Me – An Open-Source Alternative to Centralized AI▲7

    2025 · github.com

23. 23GF
    Grunden – Frontier AI inference hosted in Sweden, OpenAI-compatible▲7

    May 2026 · grunden.ai

24. 24TT
    Tic Tac Toe – Creating Unbeatable AI▲6

    2019 · towardsdatascience.com

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