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# Google splits its AI search answers between free and paying users
- URL: https://www.bushletter.com/google-deploys-gemini-4-argon-in-search-for-paying-users/
- Published: 2026-10-14T01:30:00.000Z
- Updated: 2026-10-14T01:29:59.000Z
- Description: Brands may appear differently across subscription tiers, and Google has not outlined tools for advertisers or publishers to measure the gap.
- Author: Bushletter Newsroom
- Tags: Marketing, Technology, US, Google

TLDR

Google made Gemini 4 Argon available on 13 October 2026 to AI Ultra and Pro subscribers across Search's AI Mode, the Gemini app and its Antigravity platform. API introductory pricing starts at US$2 per million input tokens and doubles after 30 November 2026\. Paying subscribers' AI Mode answers now run on a different model from free users'.

## What launched and who can access it

Google released Gemini 4 Argon on 13 October 2026, making it available to AI Ultra and Pro subscribers in the Gemini app and in AI Mode in Search, as well as to AI Ultra subscribers on its Antigravity platform.[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com) Developers and enterprise customers gained simultaneous access through Google AI Studio and the Gemini platform API under model ID "gemini-4-argon".[\[2\]](https://cloud.google.com/blog/products/ai-machine-learning/gemini-4-argon-available-on-google-cloud?ref=bushletter.com)

Koray Kavukcuoglu, SVP at Google DeepMind and Chief AI Architect at Google, said the company was "giving developers, enterprises, scientists, and consumers access to our latest frontier model".[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com)

## Pricing and the 30 November deadline

Argon launches at an introductory rate of US$2 per million input tokens and US$10 per million output tokens, with cached input tokens discounted by 95 per cent.[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com) Those rates apply only through 30 November 2026, after which standard pricing rises to US$4 per million input tokens and US$20 per million output tokens.[\[2\]](https://cloud.google.com/blog/products/ai-machine-learning/gemini-4-argon-available-on-google-cloud?ref=bushletter.com)

Enterprise teams on Gemini for Business and Antigravity desktop and CLI also gain direct access to Argon's reasoning and multimodal capabilities throughout the introductory pricing window that runs until 30 November 2026, before input and output costs double at the end of November.[\[2\]](https://cloud.google.com/blog/products/ai-machine-learning/gemini-4-argon-available-on-google-cloud?ref=bushletter.com)

## Performance claims and independent results

The Vals Index, which evaluates AI models across economic sectors including finance, coding, legal and tax work, placed Gemini 4 Argon first with a score of 68.90 per cent as of 13 October 2026.[\[4\]](https://www.vals.ai/home?ref=bushletter.com) Google cited that ranking in its own release, though the Vals Index is a third-party evaluation platform rather than a Google-commissioned study.[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com)

Agentic code submissions by Google engineering teams increased by more than 35 per cent, while code rollbacks fell by nearly a third, over the weeks preceding the public launch.[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com) Those figures come from Google's own release and have not been independently verified.

## What it means for brand visibility in Search

Argon's deployment creates a two-tier answer environment inside Google Search. Because Argon powers AI Mode only for paying subscribers, a paying subscriber and a free user asking the same question may now see different AI-generated answers and, by extension, different brand and product placements.[\[1\]](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com)

Visibility in AI Mode may no longer be optimised for a single, uniform response, given that whether a business appears in an AI-generated answer may depend on the searcher's subscription tier. Google has not outlined any tools to help advertisers or publishers measure or manage the difference between the two answer sets.

KEY TAKEAWAYS

01Gemini 4 Argon went live on 13 October 2026 for Ultra and Pro subscribers in the Gemini app and AI Mode in Search.

02API introductory pricing of US$2 input and US$10 output per million tokens expires on 30 November 2026.

03Vals Index placed Argon first with a score of 68.90 per cent as of 13 October 2026.

04Google engineering teams saw agentic code submissions rise by more than 35 per cent, with rollbacks down by nearly a third.

05Free and paying users' AI Mode answers now come from different models, so brand placements may differ.

SOURCES & CITATIONS

1. [Introducing Gemini 4 Argon](https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-argon/?ref=bushletter.com)
2. [Gemini 4 Argon available on Google Cloud](https://cloud.google.com/blog/products/ai-machine-learning/gemini-4-argon-available-on-google-cloud?ref=bushletter.com)
3. [Google Gemini 4 Argon comes to AI Mode, Search Engine Journal](https://www.searchenginejournal.com/google-gemini-4-argon-ai-mode/592806/?ref=bushletter.com)
4. [Vals Index AI model rankings](https://www.vals.ai/home?ref=bushletter.com)

FREQUENTLY ASKED QUESTIONS

Who can access Gemini 4 Argon right now?

AI Ultra and Pro subscribers can use Argon in the Gemini app and in AI Mode in Search. AI Ultra subscribers also have access through Google Antigravity. Developers and enterprise customers can call the model via Google AI Studio and the Gemini platform API using the model ID "gemini-4-argon".

What does Gemini 4 Argon cost via the API?

Until 30 November 2026, the introductory rate is US$2 per million input tokens and US$10 per million output tokens, with cached input tokens discounted by 95 per cent. After that date, standard pricing rises to US$4 per million input tokens and US$20 per million output tokens.

How does the Argon rollout affect Search results for marketers?

AI Mode in Search now generates different answers for free users and paying subscribers. That means brand placements in AI-generated Search answers can vary depending on a searcher's subscription tier, a factor outside conventional search optimisation.