How to Use ChatGPT 4 For Free
Want to experience the power of GPT-4 without paying for ChatGPT Plus? You’re not alone. Many are curious about how to use ChatGPT 4 for free — and the good news? You absolutely can.
In this guide, we’ll show you how to get ChatGPT 4 access for free across different platforms like Bing Chat, Perplexity AI, and even browser extensions like Merlin. No subscriptions, no tricks — just free access to GPT-4 online.

Let’s dive in 👇
1. Can You Really Use ChatGPT 4 for Free?
Yes, you can! Thanks to several platforms integrating GPT-4, you can chat with this powerful AI model without a Plus subscription. While OpenAI’s own ChatGPT app locks GPT-4 behind a paywall, these alternative services give you access at zero cost.
2. How to Use ChatGPT 4o for Free on OpenAI?
OpenAI recently introduced ChatGPT-4o (the “o” stands for “omni”) — a faster, more capable, and free version of GPT-4.
Here’s how to access it:
- Visit chat.openai.com
- Sign in with your OpenAI account
- You’ll be using GPT-4o by default (free tier included!)
- It even supports text, image, and audio inputs — all for free
Note: You don’t need ChatGPT Plus for GPT-4o. But during peak hours, access may be limited.
3. How to Use ChatGPT 4 for Free on Bing Chat?
Microsoft’s Bing Chat is one of the easiest ways to use GPT-4 for free.
Here’s what you need:
- Open bing.com/chat
- Sign in with a Microsoft account
- Start chatting — it runs on GPT-4, with web access built-in
👉 Bonus: Bing Chat has three conversation modes — Creative, Balanced, and Precise. You can switch between them depending on your task.
Pro Tip: Use Microsoft Edge for the best experience. Bing AI works seamlessly inside the browser.
4. How to Use ChatGPT 4 on Perplexity AI?
Perplexity AI is a rising star that gives direct answers with sources, all powered by GPT-4.
To use it:
- Head to perplexity.ai
- No sign-up needed (optional login for more features)
- Type your question and get accurate, cited answers
- It uses GPT-4 (Pro) for deeper queries
Note: Some advanced features (like GPT-4 Turbo) may require a free trial or login, but the base GPT-4 access is free.
5. How to Use ChatGPT 4 for Free with Merlin?
Want GPT-4 responses while browsing any site?
Try Merlin, a Chrome extension that brings GPT-4 into your workflow — no matter where you are online.
- Add Merlin
- Sign in (free account)
- Highlight any text or click the extension icon
- Merlin will analyze and reply using GPT-4 for free
Use it to summarize articles, write emails, or brainstorm content — right inside your browser.
6. Is There a Catch to These Free GPT-4 Options?
Not really — but here’s what you should know:
- OpenAI (GPT-4o): Free but may be throttled during high demand
- Bing Chat: Requires a Microsoft account; best in Edge browser
- Perplexity AI: Free with GPT-4, but advanced tools may need login
- Merlin: Has usage limits on the free plan
So while these aren’t 100% unlimited, they’re more than enough for most users looking for ChatGPT 4 free online access.
7. FAQs About Using GPT-4 for Free
Is GPT-4 better than GPT-3.5?
Yes! GPT-4 is smarter, more accurate, and better at handling complex tasks.
Do I need to pay for ChatGPT 4?
Not necessarily. You can use GPT-4 for free on platforms like Bing Chat or ChatGPT-4o.
Is GPT-4 free on ChatGPT mobile apps?
Yes — GPT-4o is free by default in the ChatGPT mobile app (iOS and Android).
Final Thoughts: Should You Pay for ChatGPT Plus?
If you’re a heavy user or need advanced features like memory, custom GPTs, or priority access, ChatGPT Plus may be worth the $20/month. But for most users? These free alternatives are more than enough to get started.
What’s Your Take on ChatGPT 4 Free Access?
Have you tried any of these methods? Which one worked best for you?
Drop your experience in the comments below 👇 — and share this guide with a friend who’s still stuck on GPT-3.5!
Also Read: How to Use ChatGPT with Siri on iPhone