Google announced on October 17 that Gemini 4 Argon is rolling out worldwide through the Gemini API for developers and businesses. The subscription routes differ by product: Google AI Ultra is named for Antigravity, while Google AI Pro or Ultra is named for the Gemini app and Search AI Mode. Google’s announcement also sets introductory API rates.
Where Google says you can access Gemini 4 Argon
| Access route | Announced eligibility or terms |
| Gemini API through AI Studio and the Gemini platform | Worldwide rollout for developers and businesses |
| Antigravity | Google AI Ultra subscribers |
| Gemini app and Search AI Mode | Google AI Pro and Ultra subscribers |
| Scientist offer through Antigravity | Up to 10,000 scientists may receive six months at the highest usage tier, subject to eligibility, capacity, and selection; onboarding is continuous |
| Fairwind Program | Google says it is expanding the program to hundreds of additional partners; cybersecurity defenders can apply to join |
So, does Google AI Pro include Argon in Antigravity? Google names Ultra for Antigravity, while Pro and Ultra are named for the Gemini app and Search AI Mode. Those are separate product-specific access terms.
Google’s introductory API rates
| API usage | Announced introductory rate | Billing unit or condition |
| Input tokens | $2 | Per million tokens |
| Output tokens | $10 | Per million tokens |
| Cached input tokens | 95% discount | Discount from the input rate |
Google also says the Gemini API has a unified limit of 1 million tokens across input and output. The rates and limit are part of the company’s October 17 announcement.
From restricted early access to a wider rollout
In a report published October 2, MeetCody said access at the time was limited to trusted cybersecurity partners and that Google had not announced a wider-release date. Google’s October 17 announcement later described worldwide API rollout and subscription access by product. NeoTeo covered the initial phased rollout in its earlier report.
