AI · alternatives · 2026

24 alternatives to GPT-3 Meter

Usage based billing for OpenAI application developers.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. GPT-3 Meter launched in 2023; newer entries below may have overtaken it.

1. 1
   OpenMeter▲459

   Usage metering for engineers

   2023 · its alternatives →

2. 2
   GPT-3 Demo▲250

   A showcase of 80+ GPT-3 resources, examples, and use cases

   2021 · its alternatives →

3. 3
   GPT‑5.4▲475

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

   Mar 2026 · openai.com · its alternatives →

4. 4
   GPT Computer Assistant▲655

   Create intelligence for your products

   2024 · gca.dev · its alternatives →

5. 5
   GPT Builder Tools by Top Road (YC W22)▲305

   Monetise your GPTs with in-chat payments in the OpenAI Store

   2024 · its alternatives →

6. 6
   GPT-3 Surveys by BlockSurvey▲164

   Generate questions for surveys in seconds

   2021 · its alternatives →

7. 7
   GPT-5.5 by OpenAI▲477

   OpenAI's smartest and most intuitive to use model yet

   Apr 2026 · openai.com · its alternatives →

8. 8
   OpenAI o3-mini▲510

   Pushing the frontier of cost-effective reasoning

   2025 · its alternatives →

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

   Tighter instruction adherence in speech agents

   Feb 2026 · developers.openai.com · its alternatives →

10. 10
    Gapt.ai▲116

    First alternative to GPT-3 API

    2021 · its alternatives →

11. 11
    All GPTs▲425

    200+ custom GPTs in one directory

    2023 · its alternatives →

12. 12
    GPT Auth▲402

    Authentication for GPTs on GPT store

    2024 · its alternatives →

13. 13
    PromptSpark by OpenPrompts▲78

    Create powerful GPT-3 prompts to power your AI app

    2023 · its alternatives →

14. 14
    gpt-realtime▲266

    For reliable, production-ready voice agents

    2025 · openai.com · its alternatives →

15. 15
    ChatGPT Pro▲412

    Scaled access to research-grade intelligence

    2024 · its alternatives →

16. 16
    Metering.ai▲302

    Automated metering and billing for usage based pricing

    2023 · its alternatives →

17. 17
    GPT-3 Anywhere▲71

    The power of ChatGPT on any website, at any time.

    2023 · its alternatives →

18. 18
    GPTs by OpenAI▲300

    Create your own ChatGPT

    2023 · its alternatives →

19. 19
    GPT Router▲211

    Avoid OpenAI downtimes - one API for 30+ LLMs

    2023 · its alternatives →

20. 20
    Reflect AI▲163

    Use GPT3 from your notes

    2023 · its alternatives →

21. 21
    AnyAPI▲160

    Add AI power to your product in minutes

    2023 · its alternatives →

22. 22
    WikiGPT3▲94

    Complete index To Chatgpt, GPT3 tools & OpenAI apps

    2023 · its alternatives →

23. 23
    GPT-3 Books▲141

    Book recommendations powered by OpenAI

    2020 · its alternatives →

24. 24
    GPT-500▲95

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

    2023 · 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 →