Gemini 4 Argon Rolls Out to Antigravity Pro Users with Dedicated Weekly Quota

Google announced that Gemini 4 Argon is now available to all paid Pro subscribers in the Antigravity coding environment. Previously the model was in limited availability, and many users had been asking when it would open up. Google calls Argon the strongest model in Antigravity to date and says it deliberately expanded capacity due to high demand.

Confirmed

Multiple posts (rseroter, clmt, and others) relayed the official line: Gemini 4 Argon is open to all Antigravity Pro subscribers and is marked as New in the model selector.
Argon has its own quota, calculated weekly only, separate from the Gemini quota pool shared with 3.8 Flash—it doesn't eat into Flash allowance.
A Reddit user's (vvdog) screenshot shows the weekly quota at 80.51% used, refreshing in roughly 167 hours 47 minutes, and mentions higher-tier plans (details not covered in the source material).

Unconfirmed

Earlier, @clmt flagged that the name "Gemini 4 Argon" had not appeared in any official public information, casting doubt on its authenticity; subsequent posts show an official rollout announcement, but the posts themselves don't include a link to Google's official announcement, so Google's official channels should be treated as authoritative.

Why it matters

This marks Argon's shift from limited availability to full rollout for Pro subscribers, and the dedicated weekly quota design means heavy users can burn through both the Flash and Argon pools simultaneously—a direct impact on the Antigravity coding workflow experience.

2026-10-16 ~ 2026-10-16 · 6 related posts

Primary sources

Gemini 4 Argon goes live in Antigravity with its own weekly quota for Pro subscribers — rseroter · 2026-10-16 06:55 (UTC+08:00)
Gemini 4 Argon reportedly now available to all Antigravity Pro users — clmt · 2026-10-16 07:20 (UTC+08:00)

[source] Gemini 4 Argon goes live in Antigravity with its own weekly quota for Pro subscribers — rseroter · 2026-10-16
Gemini 4 Argon rolls out in Antigravity for paid AI Pro users with a separate weekly quota — GeminiApp · 2026-10-16
[source] Gemini 4 Argon reportedly now available to all Antigravity Pro users — clmt · 2026-10-16
Gemini 4 Argon rolls out on Pro plans with a separate weekly usage limit — vv_dog · 2026-10-16
Gemini 4 Argon rolls out to all Antigravity Pro users — clmt · 2026-10-16

1 near-duplicate retellings: dioscuri