Google announces Gemini 4 Argon API pricing and rollout
Google says Gemini 4 Argon will launch at $2 per million input tokens and $10 per million output tokens, with cached input 95% off. After an introductory period, prices rise to $4 and $20 per million tokens respectively. Wider access is planned to start with paid API customers and Google AI Ultra subscribers.
SessionWatcher editorial · Published · Updated · Source announcement: 2026-09-30
Related guide: How to check your Gemini usage
Gemini 4 Argon pricing
Google announced Gemini 4 Argon on September 30, describing it as a model for complex software engineering and other long-horizon workflows. The company says its introductory API prices will be $2 per million input tokens and $10 per million output tokens. Cached input tokens are priced at 95% off the input rate.
After the introductory period, Google says the price will be $4 per million input tokens and $20 per million output tokens. The announcement does not specify how long the introductory period lasts.
Sources: Gemini 4 Argon: our next era of frontier intelligence
Access and token limit
Argon is initially rolling out to trusted cyber defenders through Google's Fairwind Program. Google says it plans to expand access to developers, enterprises, and consumers, starting with paid API customers and Google AI Ultra subscribers. The post does not give a release date for that wider access.
Google also says it is expanding the model's output token limit from 64,000 to 1 million tokens. The announcement describes this as supporting longer, more complex use cases.
Sources: Gemini 4 Argon: our next era of frontier intelligence
AI assisted reporting, checked against the linked official sources. Source pages checked 2026-10-01. Editorial process and corrections.