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ChatGPT vs Claude vs Gemini compares the assistants from OpenAI, Anthropic and Google. Their standard plans all cost about $20 a month. As a result, the differences lie elsewhere: independent scores, accuracy records, the cheapest way in, and the apps each one works inside.
Our reviews score ChatGPT 3.6, Claude 3.6 and Gemini 3.4. In addition, this page links to our head-to-head comparisons of each pair.
ChatGPT vs Claude vs Gemini: The Short Answer
Choose Claude for writing and the strongest independent scores. For example, its Opus 5.5 placed fourth on Arena’s text board of September 30, against 11th for Gemini’s best released model and 20th for ChatGPT’s. Claude also shows no ads on any plan.
Choose ChatGPT, by contrast, for the widest toolset and the better tested news record. In one study, 36% of its news answers had significant issues, against 76% for Gemini. Choose Gemini, finally, if you live in Gmail and Docs or want the cheapest paid plan, at $4.99 a month.
Head to Head
| Criterion | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Standard plan | Plus $20/mo | Pro $20/mo or $200/yr | Google AI Pro $19.99/mo |
| Cheapest paid plan | Go $8/mo (US) | Pro, about $17/mo yearly | Google AI Plus $4.99/mo |
| Ads | Free and Go, in test regions | None on any plan | Google says chats are not used for ads |
| Long documents | Plus: 256K with reasoning | Up to 1M, by model | 1M on Google AI Pro |
| Arena text, Sep 30 | GPT-5.6 Sol: 20th | Opus 5.5: 4th | 3.8 Flash: 11th |
| AA Intelligence Index | 53 (GPT-6 Astra) | 58 (Opus 5.5) | 41 (3.8 Flash) |
| News answers with issues | 36% | Not tested | 76% |
| Coding agent index | Codex 63 | Claude Code 68 | Antigravity 41.9 |
| Our score | 3.6 | 3.6 | 3.4 |
Prices and Plans
At the standard tier, first, the three cost almost the same: ChatGPT Plus and Claude Pro at $20, Google AI Pro at $19.99. However, only Claude sells its standard plan yearly. It costs $200, or about $17 a month. Google AI Pro, moreover, bundles 5 TB of storage.
Below that, however, Gemini is cheapest. Google AI Plus costs $4.99 a month, while ChatGPT Go costs $8 in the US and may show ads; Claude has no plan below Pro. Our breakdown of what AI tools cost per year adds up each option over twelve months.
Writing and Everyday Answers
On Arena’s text board of September 30, built on blind human votes, Claude’s Opus 5.5 placed fourth. Gemini 3.8 Flash, meanwhile, placed 11th, and ChatGPT’s best entry, GPT-5.6 Sol, 20th. On the creative-writing board of September 25, Opus 5.5 also placed first, though on only 487 votes.
Two cautions apply, though. Google’s unreleased Gemini 4 Argon topped the text board, and preference votes also do not measure accuracy. Our list of the best AI for writing covers the writing boards in more detail.
Accuracy and Reasoning
On Artificial Analysis’s Intelligence Index, Claude’s Opus 5.5 scores 58, ChatGPT’s GPT-6 Astra 53 and Gemini 3.8 Flash 41. On reasoning puzzles, by contrast, ChatGPT leads: GPT-6 Astra scored 95.0% on ARC-AGI-2, against 93.3% for Opus 5.5.
For news, in addition, the EBU and BBC study of October 2025 found significant issues in 36% of ChatGPT’s answers and 76% of Gemini’s. Claude, however, was not tested, so we cannot rank it on that measure. Our list of the best AI for research covers sourcing records.
Coding
Each assistant also comes with a coding agent. On Artificial Analysis’s Coding Agent Index, Claude Code with Sonnet 5.5 scored 68, the top entry, though at $14.19 a task. Codex, for example, scored 63 at $1.04, while Google’s Antigravity scored 41.9, according to BenchLM’s mirror.
In addition, Google replaced Gemini CLI with Antigravity CLI for free and Google AI accounts in June 2026, guides report. Our list of the best AI for coding ranks all the agents.
Where Each One Works
Gemini works inside Gmail and Google Docs on Google AI plans, and its Notebook keeps sources together. Our list of the best AI for email writing covers the Gmail side. ChatGPT, meanwhile, works inside Word, Excel and PowerPoint through a Microsoft add-in, with Word on every plan since September 17.
Claude, by contrast, works mostly in its own app, with connectors that read your files and mail for research. Its Projects also hold reference files and instructions, and its context also reaches 1M tokens on some models.
Data, Ads and Privacy
All three train on consumer chats by default, but each offers an opt-out. Claude keeps chats for five years while training is on and 30 days once it is off. Gemini, for its part, ties training to Keep Activity, however, which some connected features need.
On ads, Claude has pledged to stay ad-free, and Google says Gemini chats are not used for ads. ChatGPT, however, shows ads on Free and Go in test regions. Business plans from all three, finally, skip training by default, as our list of the best AI for business explains.
What Could Change Soon
Google announced Gemini 4 Argon on September 30, 2026, but as of October 2, only vetted cyber defenders can use it. Paid API customers and Google AI Ultra subscribers come next, without a date, and Google has not mentioned AI Pro.
Similarly, OpenAI’s newest model, GPT-6.1 Sol, runs on Plus only in ChatGPT Work and Codex, not yet in the main chat. Therefore, either release could shift these rankings, and we will update this page when it does.
Winners by Category
Overall, Claude wins on independent scores, writing boards, coding agents and ads. ChatGPT, for its part, wins on reasoning puzzles, the tested news record and the breadth of tools, from deep research to Office add-ins.
Gemini, meanwhile, wins on entry price, storage, long documents on its standard plan, and work inside Google’s apps. Overall, in ChatGPT vs Claude vs Gemini our scores put ChatGPT and Claude level at 3.6, with Gemini at 3.4.
Which One to Choose
In short, take Claude if you write a lot or want the highest independent scores without ads. ChatGPT, on the other hand, suits one subscription for research, images, coding and Office work. Gemini, finally, fits a day that runs through Gmail and Drive, or a $4.99 budget.
For deeper pairs, see our comparisons of ChatGPT vs Claude, ChatGPT vs Gemini and Claude vs Gemini.
If you are still unsure, our guide to choosing the right AI tool for a task walks through the decision step by step.
How We Research
This ChatGPT vs Claude vs Gemini comparison reuses the sources behind our reviews of each assistant, read between September 30 and October 2, 2026. Ranks come from Arena’s text board, Artificial Analysis and ARC Prize, and news accuracy from the EBU and BBC study.
The Gemini 4 Argon rollout comes from Google’s announcement as covered by Help Net Security. Our about page explains the criteria.
ChatGPT vs Claude vs Gemini FAQ
Our reviews score ChatGPT and Claude 3.6 and Gemini 3.4. Claude leads on independent scores and writing, ChatGPT on breadth and tested news accuracy, and Gemini on price and Google integration.
Gemini: Google AI Plus costs $4.99 a month. ChatGPT Go costs $8 in the US, and Claude Pro costs about $17 a month on yearly billing.
Claude. Its Opus 5.5 placed first on Arena’s creative-writing board of September 25, 2026, though on only 487 votes.
It depends on the test. Claude scores highest on Artificial Analysis’s index, while in the EBU and BBC news study ChatGPT did better than Gemini; Claude was not tested there.
Possibly. Google announced it on September 30, 2026, but as of October 2 only cyber defenders can use it, and Google has given no date for Google AI Pro.
The Verdict
ChatGPT vs Claude vs Gemini has no single winner. Claude leads on independent scores and writing, ChatGPT on breadth and its news record, and Gemini on price and Google’s apps.
So start from where you work and what you write. Then try the free plan of your first choice on a real task before you pay, as our comparison of free and paid AI tools suggests.