Google made Gemini 4 Argon available across developer, enterprise and consumer products, with introductory API pricing of $2 per million input tokens.
Google announced Gemini 4 Argon on October 13, 2026, making the model available to developers, enterprises and consumers through several Google products. Developers and businesses can access it through the Gemini API in AI Studio and the Gemini platform; Google AI Ultra subscribers can use it in Antigravity, while Google AI Ultra and Pro subscribers have access in the Gemini app and AI Mode in Search.
The introductory API price is $2 per million input tokens and $10 per million output tokens. Google says cached input tokens receive a 95% discount. The company positions Argon for complex, multi-step work in areas including coding, finance, legal tasks, cybersecurity and science, and reports that the model ranked first on the Vals Index, a benchmark it describes as covering economic sectors such as finance, coding, legal and tax work.
Google cited internal engineering projects as examples of its use. It said Argon helped increase agentic code submissions by more than 35% and reduce code rollbacks by nearly a third. In one Chrome project, the model assisted with a refactor across hundreds of files in Chromium’s 40-million-line codebase. Google also reported that Argon-supported changes to its Agent Development Kit cut in-memory session preparation time by 40% in long sessions and reduced cold-import times by 21%.
The launch announcement also described research and enterprise uses, including optimizing the open-source xTB quantum-chemistry package and helping Isomorphic Labs analyze scientific papers and patents. These examples are company-reported results; the post does not provide independent evaluations for every use case.
Alongside the launch, Google said it would offer 10,000 scientists six months of its highest Google Antigravity usage tier at no charge, subject to eligibility, capacity and selection. The broad product access and metered API pricing give teams several routes to try Argon, with availability depending on the product and subscription tier.