Following the announcement at the end of September, Gemini 4 Argon is starting to roll out to the Gemini app, Google Antigravity, and more.
In the Gemini app, Gemini 4 Argon is available for both Google AI Pro and AI Ultra subscribers. Last month, initial availability was just for the Ultra ($99.99+) tier.
Google says to expect “frontier reasoning and improved performance across complex workflows” in the app. Additionally:
Given the “major improvements” in coding performance, Google is letting users “switch between chatting and coding” within the Gemini app for macOS. Users will specifically have direct access to Antigravity’s agentic coding interface in the consumer client for building apps, web experiences, and more.
Meanwhile, there will be a new toggle in the main chat window that lets you switch from chat to tasks (previously Spark). As of today, AI Pro and AI Ultra subscribers will see 3.5 Flash-Lite, 3.8 Flash, 3.1 Pro, and 4 Argon in the model picker.
AI Pro and AI Ultra subscribers can also access Gemini 4 Argon in AI Mode.
In the Antigravity desktop app and Antigravity CLI, the new model requires AI Ultra. Google today shared more examples of how it has been using Argon with its internal version of Antigravity across Chrome, Gemma, YouTube, and more:
AI Ultra is also required for Argon access in AI Studio and Android Studio (Canary).
Argon is available in the Gemini API at an introductory price of $2 per million input tokens and $10 per million output tokens until November 30, 2026. Afterward, it will cost $4 per 1M input tokens and $20 per 1M output tokens.
On the science front, Google is offering 10,000 scientists the “highest usage tier in Google Antigravity free of charge for 6 months.” Applications are now open.
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