Free Version of ChatGPT: What's Included and What's Not

The free version of ChatGPT has quietly become a lot more capable than it used to be. As of May 2026, free users run GPT-5.5 Instant — the same everyday model Plus subscribers start with — instead of an older, weaker model. What's changed isn't whether ChatGPT is free, but what sits inside the free plan and what OpenAI now reserves for paying users. This guide breaks down exactly what the free version includes, its message limits, what's locked behind Plus and Pro, and how it stacks up against alternatives.

Since May 5, 2026, the free version of ChatGPT defaults to GPT-5.5 Instant, which replaced the older GPT-5.3 Instant for every tier, including free. OpenAI reports GPT-5.5 Instant produces roughly 52.5% fewer hallucinated claims than its predecessor on high-stakes medical, legal, and financial prompts, and it scores 88.7% on SWE-Bench for coding tasks. Once you exceed the free message cap, ChatGPT automatically falls back to a lighter GPT-5.5 Instant mini model until your limit resets.

For everyday writing and brainstorming, general questions, and simple coding help, the free version covers a genuine amount of ground. You get chat with GPT-5.5 Instant, limited image generation, limited web search for current information, and file uploads for document questions. Conversation history and basic memory carry over regardless of plan, so switching between free and paid later won't lose your past chats.

• GPT-5.5 Thinking and GPT-5.6 Sol. The reasoning-heavy models that handle complex, multi-step problems are Plus-and-above only.
• Deep Research. Multi-source web research with cited reports requires a paid plan; free users only get the model's training knowledge.
• Sora video generation. OpenAI's video generation tool is exclusive to Plus and higher tiers.
• Agent Mode and Codex. Multi-step autonomous browsing and coding agents are gated to paid subscribers.
• Ad-free chat. OpenAI began showing sponsored results to free-tier users in the US in 2026; Plus and above remove them.

The jump from Free to Plus is less about raw model quality — both now start on GPT-5.5 Instant — and more about ceiling: message limits, reasoning-model access, and the tools built around the model (Deep Research, Sora, Agent Mode, Codex).

If the free version of ChatGPT's message cap or locked-away features are the sticking point, Chat Smith is worth trying. It has its own free plan, and instead of tying you to a single provider's free-tier ceiling, it gives you one place to access several OpenAI models plus Claude, Gemini, Grok, and DeepSeek.

• More OpenAI models than free ChatGPT itself. Chat Smith gives you access to several GPT models, not just a single default — helpful if you want a faster, cheaper option for simple tasks or more headroom for harder ones.
• A free plan of its own. You can try Chat Smith at no cost before deciding whether it fits your workflow better than ChatGPT's free tier.
• One subscription, multiple providers. Compare GPT against Claude, Gemini, Grok, or DeepSeek on the same prompt instead of paying for separate accounts to do the same thing.

The free version of ChatGPT is genuinely more capable than it used to be, running the same GPT-5.5 Instant model paid users start with. The trade-offs are a tight message cap, no reasoning-heavy models, no Deep Research or Sora, and ads for US users. For occasional everyday use it's more than enough. For regular coding, research, or high-volume work, you'll hit the ceiling fast. That's when a free plan on Chat Smith, with several GPT models plus other providers in one place, is worth trying instead.

1. Is ChatGPT actually free to use?

Yes. ChatGPT has a permanent free plan on the web and in the iPhone and Android apps — no credit card required, just a free account. It's not a trial; the free tier has existed since ChatGPT launched.

2. What model does the free version of ChatGPT use?

As of May 2026, the free version runs GPT-5.5 Instant, capped at roughly 10 messages every 5 hours before falling back to a lighter GPT-5.5 Instant mini model.

3. What's the main reason to upgrade from the free version?

Message limits are the most common trigger — free users get roughly 10 messages per 5 hours versus around 160 per 3 hours on Plus. Beyond that, Plus unlocks the GPT-5.5 Thinking reasoning model, Deep Research, Sora, Agent Mode, Codex, and removes ads.