Google says Gemini 4 Argon is rolling out globally to eligible users today, October 13, 2026, through different access routes for consumers, developers and businesses. The public rollout follows Google’s September 30 announcement, when access initially went to selected cybersecurity defenders through Fairwind. Google’s announcement sets out the rollout and eligibility.
Who can access Gemini 4 Argon
Google AI Pro and Google AI Ultra subscribers can use Argon in the Gemini app and AI Mode in Search. Google’s Gemini app availability notice also names Pro and Ultra subscribers for app access.
Developers can use the paid Gemini API in AI Studio and Android Studio. Google AI Ultra subscribers can also access Argon through Antigravity and AI Studio; enterprise customers have routes through Gemini for business, the API and Antigravity. Google says the Fairwind program continues to offer cybersecurity defenders rolling access, including access without cyber guardrails.
For context on earlier questions about Argon’s practical coding performance, see NeoTeo’s previous coverage.
Google’s API rates and token limit
Google set introductory API rates at $2 per million input tokens and $10 per million output tokens. The introductory period expires November 30, 2026; Google says rates of $4 per million input tokens and $20 per million output tokens apply after it expires. Cached input tokens receive a 95% discount under the stated pricing.
The Gemini API has a unified limit of one million input-output tokens. Google points developers to a continuation protocol for longer tasks.
What an early hands-on demonstration shows
Sam Witteveen, who disclosed that he had early access under NDAs, judged Argon very good but did not consider it the best model overall. His assessment comes from one creator’s experience rather than a standardized performance test.
