Which is best: Claude, ChatGPT, Gemini or Grok?

None wins everything. Pick Claude for writing and coding, ChatGPT if you want to do it all, Gemini for image generation and Google integration, and Grok for real-time information from X.

If I can only pay for one, which should it be?

ChatGPT Plus (US$20 a month). It bundles the models, image generation, voice, deep research, and the Codex coding tool. If you write a lot of articles or code every day, Claude Pro is the better fit.

Which free plan can generate images?

The free plans of ChatGPT, Gemini and Grok can all generate images. Claude cannot. Free Gemini can also edit images and use Deep Research, and its Auto mode also uses the new Gemini 4 Hydrogen.

Which paid plan is cheapest?

Google AI Plus is the cheapest at US$4.99 a month, and it includes 400 GB of cloud storage. Grok Plus and ChatGPT Go (US price) are both US$8 a month.

Which is best for writing in Chinese?

Claude. Its Chinese tone is natural and it holds up under a long list of writing rules. Grok's long-form Chinese is weaker than ChatGPT's and occasionally drifts into Simplified characters.

Claude vs ChatGPT vs Gemini vs Grok: Which AI Should You Pay For? (2026)

Claude, ChatGPT, Gemini and Grok are the four AI tools people compare most in 2026. Their main paid plans mostly sit around US$20 a month, with cheaper entry plans below that. This article lays out the differences in one table, recommends a tool by use case, and ends with which one to pay for if you can only pick one.

Prices and plans are based on each provider’s official plan pages as of November 14, 2026. ChatGPT’s US dollar prices and Grok’s model names come from this site’s October fact checks.

Claude vs ChatGPT vs Gemini vs Grok comparison table

	Claude	ChatGPT	Gemini	Grok
Best at	Chinese writing, following rules, coding	Broadest feature set, brainstorming, voice chat	Image generation, Google Search, Gmail and Docs integration	Real-time X information, social sentiment
What the free plan does	Sonnet and Haiku models, web search, Artifacts (a live preview of the output beside the chat), memory, no ads	GPT-6 Luna model, with limited image generation, voice and deep research; the free plan shows ads in Taiwan	Flash-Lite model, image generation and editing, Deep Research	Daily chat, image generation and voice, with limited usage
Entry-level paid price	Pro US$20 (US$17 a month billed annually)	Go US$8 (US price), Plus US$20	AI Plus US$4.99, AI Pro US$19.99	Plus US$8, Premium US$30
Latest main models	Opus 5.5 (everyday), Fable 5.2 (hardest technical problems)	GPT-6.1 Sol, GPT-6 Astra (Plus and up)	Gemini 4 Hydrogen (also used in free Auto mode), Argon (Pro and up)	Grok 4.6 (chat), Grok 4.7 (API, Cursor, Grok Build)
Who it is for	People who write articles or code every day	Beginners who want to try everything	Heavy Gmail and Google Drive users	People who scroll X every day

How to choose by use case

Writing

Pick Claude. It holds up under a long list of style rules, and its Chinese tone is natural. ChatGPT brings more angles for brainstorming, so it works well for drafting an outline that you then hand to Claude to write. The detailed comparison is in Claude vs ChatGPT.

Coding

Pick Claude. The Pro plan includes Claude Code, and in this site’s comparisons it handles serious development better than ChatGPT and Grok. How Claude’s four models divide the work is covered in Claude Opus vs Sonnet. ChatGPT Plus also has a coding tool, Codex, so if you already use ChatGPT, start with Codex.

Research

For everyday lookups, pick Gemini, which is built on Google Search. To turn research into a report, use ChatGPT Plus’s deep research. For breaking news and what people are saying about it, pick Grok, which reads posts on X directly and summarizes the sentiment.

Images and video

For image generation, pick Gemini. Its image quality and style consistency across a set of images lead ChatGPT, and prompts in English work best. ChatGPT has a lower bar when you ask for images of real people. For video, ChatGPT’s plan page lists no video generation, Gemini offers AI video from AI Plus, and Grok from Premium. Claude cannot generate images. The full image comparison is in Gemini vs ChatGPT.

Google and X integration

If you live in Gmail and Google Docs, pick Gemini. From AI Plus, Gemini is built into Gmail, and AI Pro adds Google Docs and 5 TB of cloud storage. If you live on X, pick Grok. One Premium plan includes SuperGrok, the AI coding editor Cursor Pro, and X Premium+ benefits. For how Grok and ChatGPT split the work, see Grok vs ChatGPT.

Which one should you pay for if you can only pick one?

ChatGPT Plus (US$20 a month) is the recommendation. Three reasons:

The latest models and tools in one plan: GPT-6.1 Sol, image generation, voice and video chat, deep research and Codex are all in Plus.
No ads: in Taiwan, Free and Go show ads, and Plus and above do not.
Fewest weaknesses: it trails Claude in writing, Gemini in images and Grok in real-time information, but it can do every one of them.

Three kinds of users can choose a different one instead:

You write long articles or code every day: pay for Claude Pro (US$20) instead. Writing and serious development are Claude’s strengths.
You are a heavy Google user: pay for Google AI Pro (US$19.99) instead, and get Gemini 4 Argon, Gmail and Docs integration, and 5 TB of storage together.
You follow the news on X every day: pay for Grok Premium (US$30) instead, which also includes X Premium+ benefits.

Penchan’s Take

Each of the four has its home turf, and none wins everything. If you are new, use all four free plans for a month, notice which one your hand reaches for on each task, and pay for that one. If your budget covers only one subscription, start with ChatGPT Plus, then add Claude Pro once you do more text work. Claude plus ChatGPT is also the first pairing this site recommends on a tight budget.