# Google adds Gemini 4 Argon to AI Mode's model menu

Published: 2026-10-13T17:33:28.879Z · Source: Search Engine Journal (https://www.searchenginejournal.com/google-gemini-4-argon-ai-mode/592806/)
Source date: 2026-10-13
Entities: ai-mode, gemini, google

Google has added Gemini 4 Argon as a selectable model inside AI Mode's "Ask anything" bar, reachable via the menu's "+" icon, per Search Engine Journal. The option is rolling out globally to Google AI Pro and Ultra subscribers; Google says it improves handling of multi-step tasks and back-and-forth instructions. It's additive, not a replacement — AI Mode's default remains a Flash-class model, which Google uses to keep responses fast and costs down at search scale.

Why it matters: AI Mode's first model picker lets Google test whether subscribers will trade its default cost-and-speed tradeoff for a more capable model on complex queries, rather than Google choosing one model for everyone.

## What this answers

**Can I use Gemini 4 Argon in Google AI Mode?**

Yes — as of October 13, 2026, Google AI Pro and Ultra subscribers can select Gemini 4 Argon from the model menu (the '+' icon) in AI Mode's "Ask anything" bar; it's an added option, not the default.

**What model does Google AI Mode use by default?**

A Flash-class Gemini model remains AI Mode's default, which Google uses to keep responses fast and costs down at search scale; Argon is a selectable alternative for subscribers, not a replacement.


Canonical: https://anythingengineoptimization.com/item/2026-10-13-google-adds-gemini-4-argon-to-ai-mode-s-model-menu/
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