AI · alternatives · 2026

24 alternatives to GPT-100

GPT-4 API based 100 startups that making millions.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. GPT-100 launched in 2023; newer entries below may have overtaken it.

1. 1
   GPT-500▲95

   500+ new & unique side projects people built using GPT-4

   2023 · pr1ncesingh.gumroad.com · its alternatives →

2. 2
   iideaGPT▲81

   100+ new AI business ideas people built using ChatGPT

   2023 · pr1ncesingh.gumroad.com · its alternatives →

3. 3
   IdeaGPT▲100

   100+ new AI startups people built using GPT-4 free

   2023 · pr1ncesingh.gumroad.com · its alternatives →

4. 4
   1000+ GPT-4 Prompts▲514

   Use GPT-4 to save 100s of hours of manual work

   2023 · shushantlakhyani.gumroad.com · its alternatives →

5. 5
   100+ AI Startup Ideas▲271

   AI Startup Ideas you can build using ChatGPT, GPT3 & more

   2022 · aistartupideas.com · its alternatives →

6. 6
   Idea-GPT▲5

   100+ New GPT-4 Product that making millions. FREE

   2023 · pr1ncesingh.gumroad.com · its alternatives →

7. 7
   GPT-4.1 in the API▲375

   Announcing GPT-4.1, GPT-4.1 mini, & GPT-4.1 nano in the API

   2025 · openai.com · its alternatives →

8. 8
   All GPTs▲425

   200+ custom GPTs in one directory

   2023 · allgpts.co · its alternatives →

9. 9
   GPT-4▲1,160

   More accurate, less cringe, smoother & useful daily chats!

   2023 · openai.com · its alternatives →

10. 10IR
    I Remade the Fake Google Gemini Demo, Except Using GPT-4 and It's Real▲434

    2023 · sagittarius.greg.technology · its alternatives →

11. 11
    100+ GPTs▲42

    Unleash the power of AI with 100+ expertly engineered GPTs

    2024 · theveller.gumroad.com · its alternatives →

12. 12
    100+ Marketing GPT-4 Prompts Templates▲266

    Transform your work with GPT4 and save 100s of hours

    2023 · harshmakadia.gumroad.com · its alternatives →

13. 13
    GPT‑5.4 mini and nano▲267

    Fast and efficient models optimized for coding and subagents

    Mar 2026 · openai.com · its alternatives →

14. 14
    Secret-GPT▲83

    20 secret way to make money using GPT-4 + free

    2023 · pr1ncesingh.gumroad.com · its alternatives →

15. 15
    Product Prediction▲255

    I asked GPT-3 to guess what the top makers will build next

    2021 · its alternatives →

16. 16
    Everyday with GPT-4▲227

    Get the most out of AI daily

    2023 · overment.gumroad.com · its alternatives →

17. 17
    AI Studio▲87

    World's first ChatGPT4 powered video creator

    2023 · warriorplus.com · its alternatives →

18. 18
    300+ GPT-4 Use Cases▲163

    Discover the potential possibilities using GPT-4

    2023 · its alternatives →

19. 19
    ProGPTs▲105

    Promote and make money with your OpenAI GPTs.

    2023 · its alternatives →

20. 20
    Auto-GPT▲198

    An Autonomous GPT-4 Experiment

    2023 · github.com · its alternatives →

21. 21
    AI-Powered Mock API Generator▲86

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

22. 22
    Instant-GPT▲30

    World's fastest way to access GPT-4 on any websites

    2023 · sites.google.com · its alternatives →

23. 23
    AI Founder by Kickstart Side Hustle▲155

    ChatGPT & Midjourney guides, MEGA prompts, 800+ swipe files

    2023 · kickstartsidehustle.com · its alternatives →

24. 24
    Help.AI▲68

    Write "HELP" and access GPT-4 on any site + source code

    2023 · sites.google.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →