How far can you use the free version of ChatGPT/Claude/Gemini? A thorough comparison of the number limits and functional differences of the three major AI chats [March 2026 version]

I am increasingly being asked, "Isn't ChatGPT free to use?" It's certainly free to use. However, surprisingly little is known about how far it can be used.

In addition to ChatGPT, you can also use Anthropic's Claude and Google's Gemini for free. So,which one is the best value? How are the restrictions different?

In this article, we will thoroughly compare the three major AI chat free plans based on the latest information as of March 2026, based on the three axes of "number of times limit," "usable models," and "usable functions." If you're thinking, ``I don't want to pay for it, but I want to try using AI,'' please refer to it.

In the first place, how does "free version restriction" work?

What all three AI chats have in common is the mechanism that ``You can use the latest model for free, but there is a limit to the number of times you can use it.''

When the upper limit is reached, you will be automatically switched to a lightweight model with lower performance, or you will not be able to send messages for a certain period of time. In other words, the free version is enough to try it out for a while, but if you try to use it extensively, it's designed to hit a wall.

Moreover, in most cases, the number of times limit is not a fixed value such as ``x times a day,'' but changes dynamically depending on the congestion situation and the length of the message. "Yesterday I could use it 20 times, but today I was limited to 10 times..." is a common occurrence.

[Comparison table] ChatGPT/Claude/Gemini free plan limitations list

We compared the free plans of 3 services based on information as of March 2026.

Item	ChatGPT (Free)	Claude (Free)	Gemini (Free)
Available models	GPT-5.2 (latest)	Claude Sonnet 4.5	Gemini 3 Flash / 3 Pro (limited)
Number of times limit	About 10 times per 5 hours (GPT-5.2)	Dynamic limit (estimate: 20 to 40 times a day)	Public (varies depending on congestion)
Behavior after limitations	Automatically switch to GPT-5.2 mini	Reset after 5 hours	Switch to lightweight model
Web search	○	○	○ (Google search integration)
File upload	○	○ (within number of times limit)	○
Image generation	○ (approximately 3 images per day)	×	○ (approximately 20 images per day)
Voice dialogue	○ (Advanced Voice)	×	○ (Gemini Live)
Code execution	○	×	○
Custom AI	GPTs (use only)	× (Projects are Pro or higher)	Gems (creation and use OK)
Deep Research	×(Plus or above)	×	○(5 reports per month)

*Restrictions for each service are subject to change without notice. Please check each official website for the latest information.

ChatGPT free version: The latest model GPT-5.2 can be used, but the "5 hours 10 times" wall

The free version of ChatGPT can use the latest model GPT-5.2 as of March 2026. There was a time when only GPT-3.5 could be used, so this is quite generous.

However, GPT-5.2 can only be used for approximately 10 messages per 5 hours. When the limit is reached, it will automatically switch to the lightweight version "GPT-5.2 mini". Although the mini can adequately answer everyday questions, it is less accurate when it comes to complex reasoning or generating long sentences.

The free version has a surprisingly large number of functions, including web search, file upload, image generation (DALL-E, approximately 3 images per day), voice dialogue (Advanced Voice), and code execution (see OpenAI official pricing page). You can also use GPTs (custom AI) created by others.

In short, if you just want to ask something, the free version is sufficient. However, if you use it a lot at work, you will quickly hit the wall of 10 times in 5 hours.

Claude free version: Top-class answer quality but limited functionality

Claude, provided by Anthropic, has been evaluated for the quality of long text reading and writing. Claude Sonnet 4.5 is available in the free version.

The number of times limit is set to "dynamic", and no specific numerical value has been officially released. To summarize what users have reported, a good rule of thumb is about 40 times a day for short messages, and about 20-30 times a day for long messages or file attachments (see Claude Help Center). Once the limit is reached, you will have to wait until the next reset (approximately 5 hours later).

What is noteworthy about the free version of Claude is the Artifacts function. It's a feature that displays code and documentation next to your chat in real time, and it's free to use. You can also preview web pages and generate graphs on Artifacts.

On the other hand, Image generation, voice interaction, and code execution are not available in the free version. Projects (project management function) also requires a Pro plan or higher. In other words, it's accurate to think of it as a "free plan that specializes in text-based interactions."

The free version of Claude is most suitable for work that emphasizes text quality, such as revising text, drafting reports, and code reviews.

Gemini free version: Overwhelming range of functions. Unprecedented image generation of 20 images/day

Google's Gemini leads the other two by a wide margin in the feature richness of its free version.

The models that can be used in the free version are Gemini 3 Flash (high-speed model) and, with limitations, Gemini 3 Pro (high-performance model). Google does not disclose the specific numbers for the number of access limits, but Flash has a relatively leeway, and Pro has stricter limits set as "Basic access" (see Google official help).

The biggest strength of the free version of Gemini is that it can generate approximately 20 images a day. This is overwhelming compared to ChatGPT's 3 photos per day. In addition, you can use Voice dialogue (Gemini Live), Create and use Gems (custom AI), and Deep Research (5 monthly reports) for free.

Also, the integration with Google services is also strong. You can seamlessly perform tasks such as summarizing the contents of Gmail or creating a draft of a Google document using a single Google account.

Roughly speaking, Gemini is the best if you want to try out various features for free. However, in terms of the quality of text responses (especially the naturalness of the Japanese), there are times when it falls behind ChatGPT and Claude.

Which one should I use? Recommendations by type

Each of the three services has different areas of expertise. It is best to choose one that suits your usage.

“I just want to ask AI anything” → ChatGPT

It is safe for beginners as it is well known and has a lot of information. Both web searches and file uploads are free, so it's the best way to experience what AI is. However, there is a wall of 5 hours and 10 times, so be careful not to use it too much.

"I want to focus on the quality of writing" → Claude

Claude is ideal for tasks where text quality is important, such as correcting reports, drafting emails, and summarizing long texts. You can also preview the code with the Artifacts function, so you can use it to learn programming.

"I want to use it widely, including image generation and Google collaboration" → Gemini

Only Gemini can generate 20 images/day, voice dialogue, and deep research for free. Another appeal is how easy it is to start using it as soon as you have a Google account.

Trick: Use all three together

Actually, Since all three can be used for free, it is wisest to use them together. When I reach the ChatGPT limit, I switch to Claude, and if I need to generate images, I use Gemini. This way you can do a lot without paying.

FAQ

Do I need to register for the free version of ChatGPT/Claude/Gemini?

All three services require the creation of a free account. You can register for ChatGPT with your OpenAI account (email address or Google account), Claude with your Anthropic account, and Gemini with your Google account. No credit card registration required.

When will the free version limit be reset?

ChatGPT uses a 5-hour rolling window method (5 hours after the first message), Claude also resets in about 5 hours, and Gemini is undisclosed but is said to be reset every few hours to a day. Please note that neither of these is a date change (0:00) reset.

Can I use the free version for work?

It can be used for simple research or drafting sentences. However, there is a limit on the number of times you can use it, so if you use it frequently for work, we recommend considering a paid plan. Also, be careful when entering confidential information. For ChatGPT and Gemini, input data from the free versions may be used for training (Claude has made it clear that input data will not be used for training).

Can I switch to a paid plan midway?

Yes, you can upgrade from the free plan to the paid plan at any time for all three services. ChatGPT Plus costs $20 per month (approximately 3,000 yen), Claude Pro costs $20 per month, and Gemini Advanced (Google AI Plus) costs 2,900 yen per month (as of March 2026).

Can the free version be used as a smartphone app?

ChatGPT and Gemini have apps for both iOS and Android, and free versions are also available. Claude has also been offering iOS and Android apps since 2024, and you can use the free version. If you log in with the same account as the browser version, your conversation history will also be synchronized.