ChatGPT Usage Limits Explained (Free, Go, Plus, Pro)

Here’s the short version: on every ChatGPT plan, everyday text chats are unlimited, subject to OpenAI’s abuse guardrails. The limits you actually run into sit on specific tools and models: file uploads, image creation, voice, deep research, the stronger reasoning modes, and the Codex and ChatGPT Work agents. Each one has its own cap and its own reset clock.

OpenAI publishes exact numbers for only a handful of these. This guide lists every number OpenAI states on its own pricing and help pages, checked in October 2026, says plainly where it doesn’t publish one, and shows you what to do when ChatGPT tells you you’ve hit a limit.

ChatGPT usage limits by plan at a glance

US prices. The words “Limited,” “More,” “Expanded,” and “Maximum” are OpenAI’s own, from its ChatGPT pricing page. Where OpenAI gives a number, the number is here.

*Subject to abuse guardrails. Pro comes in three tiers, Pro 100, Pro 200 and Pro 500, with more included usage at each step; only Pro 500 adds Ultrafast mode. OpenAI hasn’t published a voice figure for Pro 500. See OpenAI’s Pro tiers page and our ChatGPT pricing page, which is checked daily.

What “unlimited” means on ChatGPT

Every plan, including Free, gets unlimited everyday text chats. The asterisk matters. OpenAI says usage must be reasonable and follow its terms, which prohibit things like sharing your login, reselling access, or pulling data out automatically. If its guardrails flag unusual activity, ChatGPT can apply a temporary restriction, and it tells you when that happens.

“Unlimited” also covers only the everyday chat model. On Free and Go that’s Luna, OpenAI’s fastest and lowest-cost model. (OpenAI’s release notes and pricing page call it GPT-6 Luna, while some of its help pages still say GPT-5.6 Luna.) The moment you upload a file, create an image, start a voice chat, or run deep research, you’re drawing from a separate allowance.

Plus has one more wrinkle. OpenAI’s Plus help page says subscriptions may include usage limits such as message caps, especially during high demand, and that these can vary with system conditions. So even paid chat can tighten on a busy day.

The ChatGPT limits you’ll actually hit

File uploads, images, and data analysis

OpenAI’s Free tier FAQ says file uploads, image creation, voice, data analysis, and other tools each have their own limits, separate from chat. It doesn’t publish the numbers; the paid plans simply get more room, in the pricing page’s words. When you reach one, ChatGPT shows a notice, often with an upgrade button next to it.

Thinking (the stronger reasoning modes)

On Plus, the Thinking slider runs GPT-6 Sol at Medium or High. Extra High and the Pro reasoning options are Pro-only. OpenAI doesn’t list a fixed Thinking cap for Plus. Its model help page says that if you reach a Thinking limit, ChatGPT may continue with another available model, and it shows the reset time when it has one. Free and Go get a Think button instead, which uses Luna rather than Sol.

Voice

Voice is one of the few places with published numbers, set as daily limits. Go and Plus get 3 hours a day (Go on the smaller GPT-Live-1 mini model), Pro 100 gets 15 hours, and Pro 200 has no cap. OpenAI hasn’t published a figure for Pro 500. Free gets limited time on the mini model, and OpenAI says that limit may change.

Deep research

Deep research has its own task allowance in chat. Your remaining tasks show up in an in-product counter, and plans with a fixed monthly allowance reset every 30 days from the date of your first use. If you run deep research inside ChatGPT Work instead, it draws on your Work and Codex allowance, not the chat counter.

Codex and ChatGPT Work

The coding agent and the ChatGPT Work agent share one allowance. On Plus it can run on two clocks at once: a five-hour window and a weekly limit, and you need room in both. OpenAI says Pro plans currently have no five-hour limit. A new five-hour window starts with your first Work or Codex message after the previous one ends, and you can hit the cap well before five hours pass. OpenAI publishes estimates here, not fixed counts. We break those down in ChatGPT Plus vs Pro.

GPT-6 Pro (Pro plans only)

GPT-6 Pro has limits even on Pro, and OpenAI says plainly that a Pro subscription doesn’t include unlimited use of it. It no longer publishes the weekly numbers, but higher Pro tiers get higher limits. On Pro 100, GPT-6 Pro and GPT-5.6 Sol Pro share one weekly allowance, so switching between them doesn’t give you more. On Pro 200, when you run out of weekly GPT-6 Pro messages, ChatGPT switches to GPT-5.6 Thinking at Medium, and GPT-5.6 Sol Pro has its own daily allowance.

How ChatGPT limits reset

There’s no single reset time. Each limit runs on its own clock:

• Free-tier tools (uploads, images, data analysis): ChatGPT shows when they come back. Upgrading to Plus, Pro, or Business also resets them.
• Voice: a daily limit.
• Deep research in chat: 30 days from your first use, on plans with a fixed monthly allowance.
• Codex and Work: on Plus, a five-hour window, and weekly limits may also apply. Settings, then Usage, shows your reset times.
• GPT-6 Pro: weekly. GPT-5.6 Sol Pro on Pro 200 also has a daily allowance.

One thing that won’t work: asking support. OpenAI says its support team does not reset ChatGPT or Codex usage limits. Contact them only if access doesn’t come back after the stated reset time, or if you think your usage was counted wrong.

What to do when you hit a ChatGPT limit

1. Read the notice. It tells you which tool is capped and, usually, when it resets. A capped image tool doesn’t stop you from chatting.
2. Keep working in plain text. Everyday chat stays open on every plan, so do the outlining, thinking, and drafting there while the tool cools down.
3. Switch models. When a model’s allowance runs out, OpenAI’s advice is to use another available model or wait for the reset.
4. Shrink the job. For Codex and Work, OpenAI suggests tighter prompts, fewer source files, and a smaller model for routine tasks.
5. Buy credits instead of upgrading (Plus and Pro). Credits cover Codex, ChatGPT Work, and the Word, Excel, and PowerPoint extensions after your included usage runs out. They’re valid for 12 months from purchase.
6. Upgrade only if it keeps happening. One cap a month is a reason to wait. A cap that stops real work every week is a reason to pay. The full test is in Do You Actually Need to Pay for AI?

Stretch your capped tools with this prompt

Deep research runs and image generations are the scarce ones, so spend them only on requests that are ready. Plan in regular chat first, since it’s unlimited, then send the finished request to the capped tool. Paste this into a normal chat:

I have a limited number of [deep research runs / image generations] left, so I want my next one to count.

What I want: [describe the research question or the image]
Who it's for and how I'll use it: [audience and purpose]

Before I use the tool:
1. Ask me up to 3 questions about anything vague or missing.
2. Then rewrite my request as one final, specific prompt I can paste into [deep research / image creation]. Include the scope, the format, and anything to leave out.
3. List 2 things that could make the result miss, so I can fix them first.

Don't run the research or create the image yourself. Just help me write the request.

I have a limited number of [deep research runs / image generations] left, so I want my next one to count.

What I want: [describe the research question or the image]
Who it's for and how I'll use it: [audience and purpose]

Before I use the tool:
1. Ask me up to 3 questions about anything vague or missing.
2. Then rewrite my request as one final, specific prompt I can paste into [deep research / image creation]. Include the scope, the format, and anything to leave out.
3. List 2 things that could make the result miss, so I can fix them first.

Don't run the research or create the image yourself. Just help me write the request.

It costs nothing from the capped allowance and usually saves you a do-over. For more ways to get a sharper first answer, see our AI prompting guide.

ChatGPT limits vs Claude limits

The two work differently. ChatGPT never runs out of everyday chat; it caps tools and premium models one by one. Claude gives every plan a usage budget for a session that resets every five hours, and its paid plans add a weekly limit. On Claude, long chats, big files, and tools all draw from one shared budget, so a heavy session can pause everything until the reset.

If you use both, that difference shapes your habits: on ChatGPT, ration the tools; on Claude, ration long conversations. Our guide to Claude usage limits covers the Claude side, and ChatGPT vs Claude vs Gemini compares the assistants overall.

Try it now

Open ChatGPT and check Settings for a Usage page. If your plan shows one, note the reset times for anything you use heavily. Then, the next time a limit notice appears, write down which tool it was and what you were doing. After two weeks you’ll know whether you need a bigger plan or just a different habit. Still deciding between the cheaper plans? See ChatGPT Free vs Plus.

Related guides

• ChatGPT Free vs Plus: what you actually get
• Do you actually need to pay for AI?
• How to use ChatGPT
• ChatGPT vs Claude vs Gemini: Which AI Should You Use in 2026?
• Unlock ChatGPT: Your First Useful Chat in Minutes