Gemini vs ChatGPT: which AI assistant should you use?

Gemini vs ChatGPT at a glance

US prices per month, from each company's own pricing page as of October 2026. Both companies change plans, limits and model names often, so confirm on Google's Gemini plans page and ChatGPT's pricing page before you buy.

What each one is

ChatGPT is OpenAI's assistant and the product that made AI chat mainstream. It is a standalone app on the web, phones and desktops, built around OpenAI's GPT models. Over time it has grown into a whole workspace: projects, custom GPTs, scheduled tasks, plugins, a built-in browser, the Codex coding agent and an agent mode called ChatGPT Work. Our ChatGPT review covers it in more depth.

Gemini is Google's assistant, built on Google's Gemini models. It runs as an app on the web, phones and desktops, but its main advantage is that it is woven into Google's other products: Gmail, Docs, Drive, Android, Chrome and Search. Paid Gemini comes as part of a "Google AI" subscription that also includes Google storage, the same storage you would otherwise buy as Google One.

Features compared

Everyday chat and writing

For the everyday jobs most people use an assistant for (drafting emails, summarizing articles, explaining a topic, brainstorming, rewriting a paragraph) both are capable, and the gap is smaller than marketing suggests. Widely shared user feedback tends to describe ChatGPT as the more polished all-rounder with a more consistent tone, and Gemini as quicker to pull in fresh information from Google Search. Both still make confident mistakes, so check anything that matters.

Research

Both offer a "deep research" mode that reads many web pages and writes a report with sources. Google includes Deep Research on the free plan; OpenAI gives free users limited deep research and expands it on Plus and Pro. Gemini's tie to Google Search is a natural strength for current events and local questions. If sourced answers are your main use, also look at our Perplexity AI review.

Working with your own files and apps

This is the clearest dividing line. Gemini on paid plans works inside Gmail and Google Docs (Gmail only on AI Plus; Gmail, Docs and Vids on AI Pro), so it can draft replies, summarize threads and work on documents where they already are. ChatGPT takes the other approach: you bring files to it, or connect it to other services through plugins, and it offers extensions for Excel, Word, PowerPoint and Google Sheets. If your work happens in Google Workspace, Gemini saves steps. If it is spread across many tools, ChatGPT's connectors and plugins are broader.

Images, video and voice

Both create and edit images, including on their free plans with limits. Google's paid plans add video generation with its Veo models and credits for its Flow video tool, which ChatGPT's plans don't headline. Both have live voice conversation: Gemini Live on every Gemini plan, and ChatGPT voice on every plan with "voice with video" from Go upward.

Customization and agents

ChatGPT has custom GPTs (shareable assistants with their own instructions and files), projects, scheduled tasks, skills and memory across chats. Gemini has Gems (saved custom assistants), Canvas for editing documents and code side by side, and a Daily Brief on paid plans. On the top tiers, OpenAI adds Dot, an always-on agent, and Google adds early access to agent features. For most people, ChatGPT's customization options are deeper and more mature.

Coding

ChatGPT plans include Codex, OpenAI's coding agent, with more usage on Plus and Pro. Google AI Pro includes higher limits for Jules, Google's coding agent, and access to its Antigravity developer tool. Both are useful for code questions in chat. If coding is your main use, also read Claude vs ChatGPT, since Claude is a popular choice with developers.

Long documents and context

The "context window" is how much text an assistant can consider at once: your files, the conversation and its own working. Google says Google AI Pro has a 1 million token context window, enough for several long books. OpenAI's pricing page lists 256K tokens for its reasoning models on Plus (about 320 pages of input) and 400K on Pro, with smaller windows for its fast "Instant" model (54K on Plus, 27K on Free). If you regularly paste in long contracts, transcripts or whole codebases, Gemini's larger window is a real advantage.

Pricing as of October 2026

US prices per month. Annual billing and regional prices differ.

Value depends on what you already pay for. If you'd buy Google storage anyway, Google AI Pro is effectively storage plus AI for the price of the AI alone. If you don't need storage, ChatGPT Plus gives you more features for the same money. Google Workspace business customers should also check what their existing Workspace plan already includes.

Privacy and data

Gemini. According to Google's Gemini Apps privacy notice, while "Keep Activity" is on, your chats are used to provide and improve Google services, including training its AI models, and a subset of chats is read by human reviewers (disconnected from your account first). Activity is auto-deleted after 18 months by default (you can choose 3 or 36 months). With Keep Activity off, new chats are kept for 72 hours and aren't used for training unless you send feedback. Chats that were human-reviewed can be kept for up to three years. Work and school accounts fall under separate Google Workspace terms.

ChatGPT. OpenAI's pricing page states that on Free, Go, Plus and Pro your content is used to train its models, with an opt-out in settings. Business and Enterprise plans add a dedicated workspace, SSO and admin controls, and OpenAI lists SOC 2 Type 2 and ISO 27001 certifications for its business products. Temporary chats are available if you don't want a conversation saved to your history.

In short: on personal accounts both learn from your chats unless you switch it off. Gemini's human review is spelled out more plainly in its notice, which some people will find reassuring and others off-putting. Don't paste anything into either that you wouldn't want stored on the company's servers.

Platforms and integrations

ChatGPT has apps for the web, iOS, Android, Windows and macOS, with extensions for Microsoft Office and Google Sheets and a large plugin directory. Gemini runs on the web, iOS and Android, has had a Mac app since April 2026 and a Windows app since September 2026, is the default assistant on many Android phones, and appears inside Gmail, Docs, Chrome and other Google products depending on your plan. If you are deep in Microsoft 365 instead of either, also read Copilot vs ChatGPT.

Strengths and weaknesses

Choose Gemini if... choose ChatGPT if...

Other options

Gemini and ChatGPT aren't the only choices. Claude is popular for long-form writing and coding; see Claude vs ChatGPT and our Claude AI review. Microsoft Copilot suits people who work in Word, Excel and Outlook; see Copilot vs ChatGPT.