Limited to vetted cyber defenders at launch, so most developers and UK readers can only wait for wider release.

Kenning's take

What it does

Gemini 4 Argon is Google's newest frontier model, aimed at long software engineering jobs, legal and finance work and defensive cybersecurity. It can produce up to 1 million output tokens in one go. At announcement it went only to trusted cyber defenders through the Fairwind Program, with paid API customers and Google AI Ultra subscribers due to follow.

• Up to 1 million output tokens
• Long-horizon coding and codebase migration
• Finance and legal knowledge work
• Finding and patching security flaws
• Chain-of-thought monitoring for misalignment

Who it suits. For now, vetted security teams; later developers, businesses and AI Ultra subscribers.

Key facts

Category

AI models

Part of

Google Gemini

Made by

Google

Based in

United States

Released

30 September 2026

How to get it

Limited release to trusted cyber defenders via the Fairwind Program; paid API customers and Google AI Ultra subscribers to follow

Works on

API

API price

$2 per million input tokens, $10 per million output tokens; cached input 95% off (introductory, announced)

FAQ

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.