Google made Gemini 4 Argon globally available on Oct. 13, opening the model to developers and businesses through its API and to paid subscribers through several consumer products. Google’s launch post lists access through AI Studio and its enterprise platform, the Gemini app and AI Mode in Search for Google AI Pro and Ultra subscribers, and Antigravity for Ultra subscribers. Reuters reported that the release targets complex, multistep work in coding, finance, law, cybersecurity and science.
What Google says Argon did in the lab
Google highlighted an internal enzyme-design experiment as one example of Argon’s scientific use. Its researchers asked the model to design serine esterases, enzymes that break ester bonds, targeting a benchmark molecule called 4MU-acetate that glows under ultraviolet light after those bonds are broken.
According to Google, Argon assembled relevant data, tuned a model and identified biochemical filters within hours, producing five novel designs. The company says subsequent laboratory testing found robust catalytic activity across the designs.
That result is reported by Google in its launch announcement, not as an independently replicated or peer-reviewed finding. It shows the workflow Google is promoting, but it does not by itself establish how broadly the approach will work beyond this internal test.
Access, limits and pricing
Google says Argon has a unified 1 million-token input-and-output limit through the Gemini API. Introductory API pricing is $2 per million input tokens and $10 per million output tokens, with the rates scheduled to double after Nov. 30.
The company is also offering 10,000 scientists six months of free access to Antigravity’s highest usage tier. Access will be assigned on a rolling basis and remains subject to eligibility, capacity and selection.
