Head to head

Google Gemini vs ChatGPT

Pick Gemini if you already live in Google Workspace — it reads your Docs, Gmail and Drive directly, has the largest context window of the mainstream assistants, and is often bundled with storage you already buy. Pick ChatGPT if you want the deeper ecosystem and don't need Google integration. For most people the deciding factor is which suite their files already sit in, not model quality.

Checked 2026-07-28 · we re-check quarterly · how we compare

Google Gemini

Google's assistant, bundled with Workspace and the largest context window of the three.

Pricing Free tier, consumer subscription bundled with Google One storage, and Workspace add-ons for businesses. API billed separately in AI Studio. source ↗

Google Gemini ↗

ChatGPT

The default assistant, with the widest feature surface and the biggest ecosystem.

Pricing Free tier, a personal subscription, and business/enterprise tiers billed per seat. API usage is billed separately by token. Check the current tiers before committing. source ↗

ChatGPT ↗

Side by side

	Google Gemini	ChatGPT
Context window	The largest of the mainstream assistants — very long inputs in one go.	Large, though generally smaller than Gemini's top tier.
Office integration	Native across Gmail, Docs, Sheets and Drive.	Via connectors and third-party integrations rather than natively.
Bundling	Often included with a Google One storage plan you may already pay for.	A standalone subscription.
Ecosystem	Growing, anchored to Google's own products.	The largest — custom GPTs, plugins, and a deep community.
Images & voice	Yes, both.	Yes, both.
Free tier	Yes, with limits on the newest models.	Yes, with limits on the newest models.

Pick Google Gemini if…

Your documents and email already live in Google Workspace.
You routinely feed in very long inputs — books, transcripts, large codebases.
You already pay for Google One and would get the assistant bundled.
You want an assistant that can act on Drive files without uploading them again.

Pick ChatGPT if…

You want the widest third-party ecosystem and custom assistants.
You aren't tied to Google's suite and want the more mature product surface.
Your team has already standardised on it.
You want the largest pool of community tutorials and prompts.

Pick neither if…

You mainly need cited, current sources — an answer engine suits that better.
Your data can't leave your machine; run an open-weight model locally instead.
You're already paying for Microsoft 365 with Copilot included — check before adding a third subscription.

Every comparison here says when the honest answer is "not this one". A page that can only recommend is an advertisement.

Questions people actually ask

Is Gemini free?

There's a free tier. The larger context windows and newest models sit behind a paid plan, which is frequently bundled with Google One storage rather than sold separately.

Which has the bigger context window?

Gemini's top tiers accept the longest inputs of the mainstream assistants. If you routinely paste entire books or repositories, that's the single clearest differentiator.

Does Gemini read my Gmail and Docs?

With Workspace integration enabled, yes — that's the main reason to choose it. Review your organisation's data settings before turning it on for work accounts.

Browse the full catalog, or the open-source roundups if you would rather self-host than choose between two subscriptions.