Google's Gemini 4 Argon is now available to Pro and Ultra subscribers and developers

Google's newest frontier model, built for long, multi-step work like coding and research, has left its limited preview. Here is who can use it, what it costs developers and what changes in the Gemini app.

Published October 25, 2026 10:23am EDT · 2 min read

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Gemini 4 Argon key art from Google (Google)· 2 min read

Key points

Gemini 4 Argon is now in the Gemini app for Google AI Pro and Ultra subscribers
Developers get it in the paid Gemini API, Google AI Studio and Android Studio
Introductory API price: $2 per million input tokens and $10 per million output tokens
The Gemini app on Mac now includes Antigravity's coding interface

Google has opened up Gemini 4 Argon, the first model in its Gemini 4 family, to paying users and developers. Until now it was only available to a small group of security teams in Google's testing program.

Google describes Argon as a model for hard, multi-step work: writing and fixing code, enterprise research and analysis, and cyber defense. It is the model Google now puts at the top of its lineup.

Who can use Gemini 4 Argon?

Two groups get access:

Gemini app users on the Google AI Pro and Google AI Ultra plans can pick Argon in the Gemini app. Google says Pro and Ultra subscribers can also use it in AI Mode in Search.
Developers can use it through the paid tier of the Gemini API, in Google AI Studio and in Android Studio. Ultra subscribers can also try it in Antigravity, Google's agent-first coding platform.

Free Gemini users don't get Argon. If you're deciding between plans, our Google AI Plus vs Pro guide compares what each one includes.

How much does it cost developers?

Google lists an introductory API price of $2 per million input tokens and $10 per million output tokens. In its announcement, Google says the price will rise to $4 and $20 after the introductory period, which its English post says ends on November 30, 2026.

Gemini 4 Argon API	Input	Output
Introductory price	$2 per 1M tokens	$10 per 1M tokens
Price after the introductory period	$4 per 1M tokens	$20 per 1M tokens

Google says the model has a limit of 1 million tokens, which is enough to take in a large codebase or a long stack of documents at once.

Coding moves into the Gemini app

The most visible change for subscribers is on the Mac. Google says the Gemini app for macOS now includes Antigravity's agentic coding interface, so you can switch between chatting and handing Gemini a coding task without opening another app.

Google also highlights Argon's security work. It says the model can find, check and patch serious software vulnerabilities, and that vetted security teams in its testing program get a version without some of the usual safety limits for that work.

What it means for you

If you already pay for Google AI Pro or Ultra, open the Gemini app and choose Argon from the model menu.
If you build with the API, the introductory price is the cheapest Argon will be for now, so it's a good window to test it on your real workload.
If you're on the free plan, nothing changes yet. Google says more Gemini 4 models are coming.

See every current offer for Google's AI plans on our Gemini tool page.

Sources

Gemini 4 Argon is now available in the Gemini app (Google)
Gemini 4 Argon is now available for developers (Google)
Gemini 4 Argon: Built to solve your hardest problems (Google)

Source: Google

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