Google says Gemini 4 Argon can output up to 1 million tokens in one run

The headline number in Gemini 4 Argon, which Google announced on September 30, is its output limit. Google says it is up from 64,000 tokens in the previous generation to 1 million. Posts on October 2 said Argon had been added to the Gemini API docs, but Google has not given a public release date.

For now it is open only to trusted cyber defenders through the Fairwind Program. Google is expanding access in phases while working through the U.S. government's pre-release process, with paid API customers and Google AI Ultra subscribers next. Introductory pricing is $2 per million input tokens and $10 per million output, rising to $4 and $20 later. Google's highlighted scores include 77.9% on DeepSWE v1.1 and first place at 51.3% on AutomationBench.