How to Use ChatGPT 5.5 & Codex (2026)

How to Use ChatGPT 5.5 & Codex (2026)

Everyone wants ChatGPT Plus, but not everyone wants to pay for it. Fair enough — $20 a month adds up fast, especially if you’re in Pakistan and getting paid in rupees while every AI subscription is priced in dollars.

The good news? You don’t actually need to pay to get serious AI power in 2026. A handful of tools now give away access that used to be locked behind a paywall just a year or two ago. I’ve been testing most of these myself for content research, coding help, and video scripting, so here’s what’s actually worth your time — no sketchy proxies, no fake logins, no “trust me bro” GitHub repos.

1. Claude’s Free Tier

Anthropic’s Claude has quietly become one of the best free AI tools out there. The free tier gives you access to a genuinely capable model, and it’s especially strong for writing, editing, and reasoning through longer problems. If you’re a blogger or YouTuber like me, this is one of the most underrated tools for outlining scripts or cleaning up drafts.

The catch is usage limits — you get a certain number of messages before it asks you to wait or upgrade. For most casual users, though, the free allowance is more than enough.

2. Gemini Free Access

Google folded its AI chatbot directly into your existing Google account, which means if you already use Gmail, you already have access. It’s tightly integrated with Google Docs, Sheets, and Search, which is handy if your workflow already lives inside Google’s ecosystem.

It’s not the most creative writer in the room, but for quick research, summarizing PDFs, or drafting emails, it gets the job done without opening your wallet.

3. Perplexity

Perplexity isn’t a straight ChatGPT clone — it’s more of a search engine with an AI brain attached. Every answer comes with cited sources, which makes it genuinely useful for fact-checking and research instead of just trusting whatever the model says. The free tier is generous enough for daily use.

If you write content that needs to be accurate (news, tech updates, trending topics), this is worth bookmarking.

4. Microsoft Copilot

Copilot runs on OpenAI’s models under the hood and is free to use through Microsoft’s own apps and website — no subscription required for the standard version. It’s built into Windows and Edge too, so if you’re already on a Windows machine, it’s sitting right there waiting to be used.

5. Free and Open-Source Coding Assistants

If what you actually want is Codex-style help for programming, you don’t need to fake your way into it. A few legitimate options:

  • GitHub Copilot Free Tier — GitHub now offers a genuinely free plan with a monthly limit of completions and chat requests, and it’s especially generous for students through the GitHub Student Developer Pack.
  • Codeium — a free AI coding assistant that works inside VS Code and other editors, with no credit card required.
  • Local open-source models via Ollama — if you have a decent laptop, you can run smaller open-source coding models entirely offline. It’s not as powerful as the big paid models, but it’s private, free forever, and doesn’t depend on any company’s server staying online.

ChatGPT 5.5 & Codex Trick

If you want the complete step-by-step guide to get ChatGPT 5.5 and ChatGPT Codex, I’ve shared a detailed document below. You can open it and follow all the instructions for the setup process.

I’ve also attached the ZIP file download link below, which contains the required files for the setup.

📄 Complete Guide:


📦 ZIP File Download:

Follow the guide carefully, and you’ll be able to set everything up easily.

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