ChatGPT vs Claude vs Gemini: Which AI Should You Choose to Create a Game?

Want to create a mobile game with AI but stuck at the very first step, choosing between ChatGPT, Claude and Gemini? So you try all three, read a few comparisons, and an hour later you still haven't written a single prompt.

The truth is, for a small web game, all three are more than good enough. The model matters far less than how you use it and what you do with the game once it's finished.

ChatGPT, Claude or Gemini

There is a difference between the three, but it mostly shows on bigger projects, with thousands of lines of code spread across dozens of files. A mini web game is a different story. Pick the AI you already use every day, take care over your prompt, run it two or three times, and you'll have something playable.

The real complication starts afterwards. At the end, you have an HTML file on your computer, but nobody can play it yet. More on that below.

Comparing the three AIs for creating a game

	ChatGPT	Claude	Gemini
Reputation	The best known and most versatile	Often ranked first for code	Fast, large context, built into Google
For an HTML game	Quickly produces a version that works	Comfortable editing the same file many times	Handy if you start from a sketch or an image
Free version	Yes	Yes (limited)	Yes
Paid plan	~$20/month	~$20/month	~$20/month

Each one has its own personality:

• ChatGPT. The most versatile of the three. Describe your idea and you'll usually get a playable version within seconds, whatever the concept. Its ecosystem (code execution, voice, extensions) is the richest, although for an HTML game you won't use much of it.
• Claude. Many developers rank it first for clean code. It's also better when you go back to the same file ten times without wanting to break everything. On a game that fits in a single file, the advantage stays small.
• Gemini. The fastest, with a huge context window and direct access from Google tools. It does well when you show it a drawing or a screenshot of what you have in mind. On very complex projects it's sometimes a notch below, which won't happen with a simple browser game.

Which AI should you choose for your HTML5 game?

The ranking of these models changes with every new release, which means every six to twelve months. Looking for "the best one" once and for all gets you nowhere. It's better to start from your own situation:

• Already paying for one of them? Keep it. You know how it answers, so you'll move faster.
• Working in Google Workspace? Go with Gemini.
• Planning long editing sessions on the same file? Pick Claude.
• Just want it to work, right now? ChatGPT.

If you're hesitating because you don't code at all, the choice of model becomes secondary. Our comparison of the best software to create a game without coding puts AI alongside the other options.

The simplest approach is still to test. The three free versions are plenty for a mini game: run the same idea on two of them and compare. Fifteen minutes of trying will teach you more than dozens of comparison articles.

The prompt matters more than the model

Whatever the model, your prompt is what makes the difference between a grey rectangle and a fun game. Rule number one: ask for a single HTML file with no external resources. The game will then run in any web browser, and it's also the format Hoora expects for publishing.

Create an HTML game for me in a single standalone file (HTML, CSS and JavaScript all in the same document, no external resources, no libraries to download). Portrait 9:16 format, playable with mouse and touch. The game starts immediately on load, with no start screen. Concept: [your idea in one sentence]. Add a score at the top, a game over screen with the final score and a "Play Again" button. Polish the animation and visual feedback.

After that, three habits apply to every AI:

• Iterate instead of regenerating everything. Say exactly what's wrong ("the character jumps too high") and ask again.
• Ask for visual feedback. Particles, a slight screen shake, small animations on contact. That's often what separates a prototype from a game people want to replay.
• Test on mobile. Most players will be on a phone, and that's where control issues show up. Our guide to testing an html5 game on mobile walks you through it.

For prompts tailored to each type of game, the full library is in our article on the best prompts to create an html5 game.

Where to publish your game once it's made?

ChatGPT, Claude or Gemini, the end result is the same: an .html file in your Downloads folder. As long as it stays there, nobody plays it. That's exactly what Hoora is for: turning that file into a game playable online, which anyone can launch without installing anything.

Go to the website and click the purple "Import" button in the left-hand menu.

1. Drop in your HTML file, and a playable preview appears right away.
2. Add a title and a description.
3. Publish.

It's free, and the only limit is a maximum file size of 100 KB.

Your game then lands in the feed, among the creations of other community members, and it's linked to your profile. Views, likes, shares, comments: the stats are displayed publicly and update in real time. This swipe-based discovery format is what led Gizmodo to describe Hoora as a would-be TikTok of mobile gaming. Players browse it from the app, available on Android and iOS.

A traditional host gives you an address, and then you have to go and find players yourself. If you want to compare the two approaches, see our guide to hosting an html5 game for free.

Frequently asked questions about choosing an AI to create a game

• What's the best AI for creating a game? For a simple web game, all three work. Claude is often considered cleaner on code, but for a single-file game the gap stays narrow.
• Do you need to pay? No. The free versions are enough for a mini game. A subscription only becomes useful if you generate a lot.
• Can you use several AIs for the same game? Yes, and it's a good trick. Generate a first version with one, then ask another to fix a bug or improve a detail.
• What about Mistral, Copilot or the others? Any general-purpose model that can produce a standalone HTML file will do the job.
• What format should you ask for? A single .html file containing HTML, CSS and JavaScript, with no external resources, and under 100 KB for the import.
• How do you attract players once the game is published? The feed does part of the work. To go further, our article on how to promote and publish your video game gives concrete ideas. And if you're starting from scratch, the complete method to create a game with ai covers everything from the beginning.

Open the AI you already know, get a first HTML file out within fifteen minutes, and save your energy for what comes next: putting it in the hands of real players.