Google Antigravity Adds Gemini 4 Argon for AI Pro and Ultra Subscribers
Source Google Antigravity blog

At a glance
Google has added its newest AI model, Gemini 4 Argon, to its AI coding tool Google Antigravity. Google AI Pro and Ultra subscribers can use it in the Antigravity desktop app and CLI, a command-line tool, while businesses can reach it through the Gemini platform API, a gateway for connecting programs, or eligible Gemini Enterprise plans.
Key points
Gemini 4 Argon aims for top-tier results in actual software development, business tasks such as legal and finance work, and cyber defense.
Across Alphabet, Google's parent company, more than 100,000 people use Argon each month in an internal version of Antigravity.
Over four weeks, code written by AI agents rose 35%, while changes rolled back after submission fell 30%.
It halved the CPU use of YouTube's comments service and cleared 97 stale or duplicate reports from a queue of 134 bugs in under three hours.
Why it matters
A model Google first tested internally is now available to paying subscribers for their coding work, widening the chance to hand the hardest development tasks to AI.
Original article
Gemini 4 Argon in Google Antigravity
Google Antigravity blog · Oct 13, 2026, 5:00 PM GMT+9 · antigravity.google
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