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Gemini 4 Argon Is Out. The $2 Price Won't Last.

The model is broadly available from 13 October. The introductory price runs to 30 November, then doubles. The benchmark claims are Google's own.

Founder and Editor
2 min read
Google's header graphic for Gemini 4 Argon
Image: Google

[ The short version ]

  1. 01Gemini 4 Argon is available to developers and enterprises through the API and AI Studio, priced at $2 input and $10 output per million tokens.
  2. 02That price runs to 30 November 2026, then rises to $4 and $20.
  3. 03Google claims the top spot on the Vals Index, a finance, coding, legal and tax benchmark. These are Google's claims.

Google announced Gemini 4 Argon on 13 October and described it as built for "deep work in complex, real-world tasks" in coding, finance, legal work, cybersecurity and science.

$2 / $10
Per million input and output tokens, introductory priceRises to $4 / $20 after 30 November

Who can use it

  • Developers and enterprises, through the API in AI Studio and Google's Gemini platform.
  • Google AI Ultra subscribers, in Google Antigravity.
  • Google AI Ultra and Pro subscribers, in the Gemini app and AI Mode in Search.
  • 10,000 scientists can apply for the highest Antigravity tier free for six months, subject to eligibility and selection.

Cached input tokens are 95% cheaper, and the API has a 1M unified input-output token limit. Access without the usual cyber guardrails goes to vetted defenders through what Google calls the Fairwind Program, on a rolling basis.

What Google claims

  • First place on the Vals Index, which covers finance, coding, legal and tax work.
  • 87% on the ERQA embodied reasoning benchmark, which Google says beats every other frontier model.
  • A 0.7% attack success rate on the Gray Swan indirect prompt injection benchmark, across 15 adaptive attempts.
Sources and notes
  • #Google
  • #Gemini
  • #AImodels
  • #Pricing

[ Written by ]

Founder and Editor

Victor Oluwaleye founded TheStak to explain what tech, AI and marketing actually change for the people running businesses, in Africa and beyond. A computer scientist by training and a marketer by trade, Victor has spent more than a decade leading marketing teams and building digital systems inside organisations, and runs Induuce Consultants, a growth and digital transformation agency in Lagos. More about Victor

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