Alternatives

Products that do what GPT-6 Astra does

OpenAI's most capable model for end-to-end work

1. 1
   GPT-4▲1,161

   LLM that exhibits human-level performance

   2023 · openai.com

2. 2
   GPT-5▲127

   OpenAI’s most advanced model

   2025

3. 3
   GPT-5.5 by OpenAI▲477

   OpenAI's smartest and most intuitive to use model yet

   Apr 2026 · openai.com

4. 4
   GPT‑5.4▲475

   OpenAI's most efficient model: less tokens, more clarity

   Mar 2026

5. 5
   OpenAI Universe▲329

   Platform for measuring and training AI agents

   2016

6. 6AG
   A GUI for OpenAI's GPT-2 774M model▲11

   2019 · storyai.botsociety.io

7. 7
   GPT-5.6▲340

   A new standard for intelligence and efficiency

   Jul 2026 · openai.com

8. 8AP
   A Python tool for text-based AI training and generation using GPT-2▲174

   2020 · github.com

9. 9
   gpt-realtime-1.5 by OpenAI▲304

   Tighter instruction adherence in speech agents

   Feb 2026

10. 10
    OpenAI Gym▲147

    Open source interface to reinforcement learning tasks

    2016

11. 11BA
    Beehive – An open source IFTTT powered by Go's templating engine▲247

    2017 · github.com

12. 12PA
    Panini AI – A platform to serve ML/DL models at low latency▲29

    2019 · panini.ai

13. 13BO
    Beating OpenAI's structured outputs on cost, accuracy and speed▲8

    2024 · boundaryml.com

14. 14PT
    Python tool to easily retrain OpenAI's GPT-2 text-gen model on new text▲6

    2019 · github.com

15. 15SN
    Surf.new – An open-source alternative to OpenAI Operator▲9

    2025 · surf.new

16. 16IG
    Interactively generate text using the public OpenAI GPT-2 model▲9

    2019 · gpt2.apps.allenai.org

17. 17GF
    Grunden – Frontier AI inference hosted in Sweden, OpenAI-compatible▲7

    May 2026 · grunden.ai

18. 18SN
    Surf.new – An open-source alternative to OpenAI Operator▲7

    2025 · github.com

19. 19MW
    Machine Wisdom – Generated Inspiration from Deep Learning (GPT-2)▲21

    2020 · machineswisdom.com

20. 20OC
    OpenAI Codex for Free with GitHub Models▲7

    2025 · gist.github.com

21. 21CC
    CodeSpin - Code generation framework and tools using OpenAI APIs▲7

    2023 · github.com

22. 22AF
    Alternative framework for OpenAI document agent for all models▲6

    2024 · app.intellinode.ai

23. 23CA
    Cloudbank-An OpenAI universe Alternative▲9

    2018 · github.com

24. 24GH
    GPT Home, A Home Assistant Built on the Raspberry Pi via the OpenAI API▲7

    2024 · github.com

Ranked by how close each launch is in meaning, then by votes. Refine with a description →