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Side-by-side comparison · AI Assistants & LLMs

ChatGPT vs Google AI Studio vs Grok

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

ChatGPT

4.3

From $8/mo

Google AI Studio

3.9

From $19.99/mo

Grok

3.7

From $8/mo

Comparing 3 tools, the maximum.

At a glance

Best overallEasiest to use

Pick it if: Anyone who wants one general-purpose assistant that handles most everyday jobs.

Pick it if: Founders, marketers and developers who want to test Google's models or build a quick app without paying.

Grok3.7

Pick it if: People who follow news, trends or public sentiment closely and want an assistant hooked into X.

Overview

AttributeChatGPTGoogle AI StudioGrok
In one lineOpenAI's all-rounder: chat, images, voice, web search and agents in one app.Google's free workspace for testing Gemini models and building apps from a description.Elon Musk's AI assistant, plugged into what people are posting on X right now.
Pricing modelFreemiumFreemiumFreemium
Starting price$8/mo$19.99/mo$8/mo
Free plan Yes Yes Yes
Works with Claude Code No Yes No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeChatGPTGoogle AI StudioGrok
Overall rating4.3Winner3.93.7
Ease of useHow quickly someone non-technical gets value from it.
4.5
3.0
4.0
FeaturesHow completely it covers the job it's built for, and how well the pieces fit together.
5.0
4.5
4.0
Output qualityHow good the results are before you fix them.
4.0
4.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
4.0
3.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.5
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeChatGPTGoogle AI StudioGrok
Access & platform
Free plan Yes Yes Yes
Mobile app Yes No Yes
Desktop app Yes No No
Browser extension Yes No No
API access Yes Yes Yes
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images Yes Yes Yes
Makes video No Yes Yes
Writes code Yes Yes Yes
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes No No
Works in many languages Yes Yes Yes
Capabilities score15/ 1711/ 1713/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeChatGPTGoogle AI StudioGrok
Plans

Free

Free

Trying it out and everyday questions.

FreeOur pick

Free

Testing models and building small prototypes.

Free

Free

Trying it and occasional questions.

Go

$8/mo

Casual users who hit the free limits.

Google AI Pro

$19.99/mo

Regular users who also want the Gemini app upgrade.

Plus

$8/mo

X users who want a bit of Grok on the side.

PlusOur pick

$20/mo

Anyone using it most days for work.

Google AI Ultra

From $99.99/mo

Heavy builders who want the highest limits.

PremiumOur pick

$30/mo

Anyone who uses Grok most days.

Pro

From $100/mo

Heavy users and people living in Codex.

Paid API

Pay as you go, $10 prepay to start

Apps in production and anyone with sensitive data.

Super

$100/mo

Heavy users who want priority at busy times.

Business

See website

Teams from 2 people up.

Ultra

$200/mo

Power users running agents all day.

Teams

From $30/user/mo

Businesses that want pooled usage and admin controls.

Which plan to pickThe free plan is now good enough to use properly, so stay on it until the image, voice or research limits annoy you. Plus is the sensible upgrade. Only look at Pro if you run Codex or deep research all day, and read the current tier details first: Pro 200 now comes with a smaller allowance than it did before 29 September.Start free. If you're putting anything sensitive in or building something people will use, switch to a paid API key so your prompts aren't used for training. Google AI Pro only makes sense if you'd use the Gemini app upgrade too.If you already pay for X Premium, you now get Grok in the same subscription, so start there. Premium at $30 is the real Grok plan. The $100 and $200 tiers are only worth it if you're generating video or running agents constantly.

Key features

AttributeChatGPTGoogle AI StudioGrok
Standout features
  • Image generation and editing
  • Voice mode
  • Deep research
  • ChatGPT Work
  • Plugins and connectors
  • Codex and Sites
  • Playground
  • Build mode
  • Image, speech and video models
  • API keys
  • Long context
  • Export to Antigravity
  • Live X search
  • Imagine
  • Voice mode
  • Grok Bot
  • Grok Build and Cursor
  • Built into X

Pros and cons

AttributeChatGPTGoogle AI StudioGrok
Pros
  • The widest set of built-in tools of any assistant
  • Free plan includes unlimited text chat with GPT-6 Luna
  • Image generation and voice mode are the best in the category
  • Huge ecosystem of plugins, connectors and guides
  • One subscription covers the Codex coding agent too
  • Free access to Google's Flash models with full control over settings
  • Build mode turns a description into a working, publishable app
  • Handles very long documents, audio and video
  • The quickest way to get a Gemini API key
  • Live access to X posts that no other assistant has
  • Fast image and video generation
  • Personality and a willingness to give an opinion
  • One subscription now covers Grok, X Premium and coding tools
  • Capable voice mode
Cons
  • Writing sounds generic unless you work hard on the prompt
  • Plans and limits change often, and Pro now runs to $500 a month
  • Free and Go plans may show ads
  • It's confident when it's wrong, so check facts before you publish
  • Custom GPTs are being retired, so anything built on them needs moving to plugins
  • Free-tier prompts may be used to improve Google's products and reviewed by people
  • Daily limits are unpublished and users report them being cut, including for paying Pro subscribers
  • Confusing for non-developers, and it overlaps with the Gemini app and Antigravity
  • Gemini 4 Argon and Veo video need a paid plan or API billing
  • The site can be buggy and slow on long chats
  • Its chatty, opinionated tone needs editing for client-facing work
  • High-usage tiers are expensive and plan names keep changing
  • Strong opinions and a bias toward X as a source can skew answers
  • Fewer business integrations than ChatGPT or Gemini
  • Repeated controversies around content and moderation

Who each one is for

AttributeChatGPTGoogle AI StudioGrok
Best for
  • Everyday questions and brainstorming
  • Making and editing images in the chat
  • Voice conversations on your phone
  • Quick research with web search
  • Prototyping an app or internal tool by describing it
  • Testing new Gemini models before they reach the app
  • Getting a Gemini API key
  • Long documents and video transcription
  • Tracking what's trending right now
  • Gauging how people are reacting to news
  • Casual, chatty answers
  • Image and short video generation
You'll find it used by
  • Marketers
  • Small business owners
  • Students
  • Developers
  • Developers
  • Founders
  • Technical marketers
  • AI hobbyists
  • Social media managers
  • Journalists
  • Traders
  • X power users

Questions people ask

Which is better, ChatGPT, Google AI Studio or Grok?

ChatGPT scores highest overall in our ratings (ChatGPT 4.3/5, Google AI Studio 3.9/5 and Grok 3.7/5). ChatGPT is best for everyday questions and brainstorming and making and editing images in the chat. Google AI Studio is best for prototyping an app or internal tool by describing it and testing new Gemini models before they reach the app. Grok is best for tracking what's trending right now and gauging how people are reacting to news.

Which is cheaper, ChatGPT, Google AI Studio or Grok?

ChatGPT: There's a free plan, and paid plans start at $8/mo. Google AI Studio: There's a free plan, and paid plans start at $19.99/mo. Grok: There's a free plan, and paid plans start at $8/mo.

Which is easier to use, ChatGPT, Google AI Studio or Grok?

ChatGPT rates highest for ease of use in our scores. Anyone who wants one general-purpose assistant that handles most everyday jobs.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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