AI · alternatives · 2026

24 alternatives to Chat100.ai

Access ChatGPT 4o and Claude 3.5 Sonnet Free Online

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Chat100.ai launched in 2024; newer entries below may have overtaken it.

1. 1
   ChatGPT▲1,643

   Optimizing language models for dialogue

   2022 · chatgpt.com · its alternatives →

2. 2
   ChatGPT4o▲59

   Free Chat GPT 4o (GPT-4o)

   2024 · its alternatives →

3. 3
   ChatGPT for iOS▲416

   The official iOS app for ChatGPT

   2023 · its alternatives →

4. 4
   ChatGPT Plugins▲357

   Open AI announced ChatGPT Plugins to access real-world data

   2023 · its alternatives →

5. 5
   Chatgot▲214

   Chat freely, got every AI assistants here for you

   2023 · its alternatives →

6. 6
   GPT4oMini.app▲150

   Free ChatGPT4o-Mini client

   2024 · datascienceinlibraries.org · its alternatives →

7. 7
   Chatpad AI▲142

   Not just another ChatGPT user-interface

   2023 · its alternatives →

8. 8
   ChatbotGPT▲123

   Custom ChatGPT agents with your own data

   2023 · its alternatives →

9. 9
   Cuely▲140

   Pay-as-you-go chatGPT Plus with 5M free token credits

   2023 · its alternatives →

10. 10
    ChatGPT5.so: Free GPT‑5 Online▲12

    Free using ChatGPT5 Online With ChatGPT5.so

    2025 · its alternatives →

11. 11
    GPT4Free▲6

    ChatGPT without APIs, logins, or restrictions

    2024 · its alternatives →

12. 12
    PromptForge▲128

    One click AI prompts inside ChatGPT, Bard & Claude

    2023 · its alternatives →

13. 13
    ChatGPT for Twitter▲84

    Reveal AI Generated Tweets (and generate your own)!

    2023 · its alternatives →

14. 14
    The Ultimate ChatGPT Tools Directory▲96

    Find the best curated ChatGPT, chatbots, GPT4 apps & plugins

    2023 · its alternatives →

15. 15
    GPT AI Chat▲5

    ChatGPT Free Unlimited

    2024 · unlimitedai.org · its alternatives →

16. 16
    TextAIBot▲71

    Use ChatGPT over text message

    2023 · its alternatives →

17. 17
    GPT4o Chat▲9

    All-in-One AI Tool Online Free

    2024 · its alternatives →

18. 18
    Free OpenAI API Access with ChatGPT Account▲48

    Free AI with your ChatGPT account. Contribute to EvanZhouDev/openai-oauth development by creating an account on GitHub.

    Mar 2026 · github.com · its alternatives →

19. 19
    izzedo chat▲14

    Access the World's Leading AI Models in one place

    2025 · izzedo.chat · its alternatives →

20. 20
    100+ Free ChatGPT▲6

    Discover 100+ Free ChatGPT Prompts: Authenticity Guaranteed

    2023 · its alternatives →

21. 21
    ChatGPT Online - GPTOnline.ai▲1

    ChatGPT Online: Free AI Chatbot - GPTOnline.ai

    2023 · its alternatives →

22. 22
    Chat Free AI▲2

    ChatGPT free online — no login, unlimited AI chat

    Jul 2026 · chatfreeai.com · its alternatives →

23. 23
    ChatGPT - Online AI Chat Unlimited▲2

    chatgpt. chat gpt, openai, AI, chat, online, unlimited

    2023 · its alternatives →

24. 24
    AIWITH.CHAT▲7

    The ideal choice for your AI chat tool.

    Oct 2025 · aiwith.chat · 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 →