AI · alternatives · 2026

24 alternatives to The Guide of GPT-4o

This is the guide of GPT-4o product

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. The Guide of GPT-4o launched in 2024; newer entries below may have overtaken it.

1. 1
   GPT-4▲1,160

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

   2023 · openai.com · its alternatives →

2. 2
   OpenAI GPT-4o Audio Models▲379

   Build Powerful Voice Agents

   2025 · openai.com · its alternatives →

3. 3
   gpt-realtime-1.5 by OpenAI▲300

   Tighter instruction adherence in speech agents

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

4. 4
   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 →

5. 5
   GPT Image API▲487

   Bring GPT-4o quality images to your apps

   2025 · developers.openai.com · its alternatives →

6. 6IR
   I Remade the Fake Google Gemini Demo, Except Using GPT-4 and It's Real▲434

   2023 · sagittarius.greg.technology · its alternatives →

7. 7
   OpenAI o3 and o4-mini▲142

   Advanced Visual Reasoning & Agentic Tool Use

   2025 · openai.com · its alternatives →

8. 8
   OpenAI Open Models▲480

   gpt-oss-120b and gpt-oss-20b open-weight language models

   2025 · openai.com · its alternatives →

9. 9
   Open source framework OpenAI uses for Advanced Voice▲266

   Hey HN, we've been working with OpenAI for the past few months on the new Realtime API. The goal is to give everyone access to the same stack that underpins Advanced Voice in the ChatGPT app. Under the hood it works like this: - A user's speech is captured by a LiveKit client SDK in the ChatGPT app - Their speech is streamed using WebRTC to OpenAI’s voice agent - The agent relays the speech prompt over websocket to GPT-4o - GPT-4o runs inference and streams speech packets (over websocket) back to the agent - The agent relays generated speech using WebRTC back to the user’s device The…

   2024 · github.com · its alternatives →

10. 10
    Buffup.AI▲466

    The AI assistant that knows what you need by GPT-4o

    2024 · buffup.ai · its alternatives →

11. 11
    All GPTs▲425

    200+ custom GPTs in one directory

    2023 · allgpts.co · its alternatives →

12. 12
    Bito AI▲184

    Use ChatGPT and OpenAI in your IDE/CLI to save 2 hours a day

    2023 · bito.ai · its alternatives →

13. 13
    Auto-GPT▲198

    An Autonomous GPT-4 Experiment

    2023 · github.com · its alternatives →

14. 14
    GPT‑5.4 mini and nano▲267

    Fast and efficient models optimized for coding and subagents

    Mar 2026 · openai.com · its alternatives →

15. 15
    GPT-4o News▲5

    All Info About GPT-4o in One Place!

    2024 · its alternatives →

16. 16
    Scoopika▲127

    Build gpt-4o level AI assistants for your app

    2024 · scoopika.com · its alternatives →

17. 17
    GPT-3 Demo▲250

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

    2021 · gpt3demo.com · its alternatives →

18. 18
    OpenAI 4o Image Generation▲249

    OpenAI most advanced image generator yet

    2025 · openai.com · its alternatives →

19. 19
    GPT-4 Demo▲84

    A showcase of GPT-4 resources, examples & use cases

    2023 · gpt4demo.com · its alternatives →

20. 20
    ChatGPT4o▲59

    Free Chat GPT 4o (GPT-4o)

    2024 · its alternatives →

21. 21
    Everyday with GPT-4▲227

    Get the most out of AI daily

    2023 · overment.gumroad.com · its alternatives →

22. 22
    Reflect AI▲163

    Use GPT3 from your notes

    2023 · reflect.app · its alternatives →

23. 23
    GPT-4.1▲8

    GPT 4.1: the complete guide | features, pricing & how to use

    2025 · its alternatives →

24. 24
    ChadView▲83

    Crack your online meeting with instant GPT-driven insights

    2023 · chadview.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 →