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News · Google · October 13, 2026

Published . By , AI-assisted.

Gemini 4 Argon is out: what changed, and what it costs you

Google released Gemini 4 Argon to developers on October 13, 2026, at an introductory $2 per million input tokens and $10 per million output through November 30, then $4 and $20. Gemini 4 Argon has been in llmwise since October 14, 2026: up to 62 Gemini 4 Argon messages a month on Pro ($20).

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Facts checked against Google: Gemini 4 Argon, built to solve your hardest problems, Google: Gemini 4 Argon, our next era of frontier intelligence, Google AI for Developers: What's new in Gemini 4 Argon, Google AI for Developers: Gemini 4 Argon. Updated .

What Google announced

Each point is from Google's own announcement unless its source says otherwise; the numbers link to the sources below.

  1. Google announced Argon on September 30, 2026, first for trusted cyber defenders in its Fairwind Program, and released it to developers and enterprises on October 13.[2][1]

  2. The introductory price runs through November 30, 2026; from December 1 it's $4 per million input tokens and $20 per million output, and output includes its thinking tokens.[1][3]

  3. Cached input costs 95% less, $0.10 per million tokens and $0.20 from December 1; that cache works on its own for prompts of at least 4,096 tokens, and explicit caching isn't supported.[3]

  4. Input, thinking and output share one window of 1,048,576 tokens, and with Google's long decode one reply can go past 64,000 tokens, up to 1 million minus the input.[3][4]

  5. It reads text, images, video, audio and PDFs and writes text, with function calling, structured outputs, code execution, Google Search grounding and URL context.[4]

  6. Its thinking has three levels, low, medium and high; medium is the default, and the one Google recommends for most tasks, complex code included.[3]

  7. Google reports 77.9% on DeepSWE v1.1, a test of long software engineering tasks, and says Argon leads the Vals Index of finance, coding, legal and tax work.[2]

  8. In the Gemini API it's on the paid tier only, not the free tier.[3]

  9. In Google's own apps it's for Google AI Ultra and Pro subscribers, in the Gemini app and AI Mode in Search, and for Ultra subscribers in Google Antigravity.[1]

Can you use Gemini 4 Argon in llmwise?

What Gemini 4 Argon costs you in llmwise, from the plans themselves.

Gemini 4 Argon

Gemini 4 Argon has been in llmwise since October 14, 2026. llmwise's catalog prices it at $4.00 per million tokens in and $20.00 out (Google's list price; its standard price from December 1, 2026; $2 / $10 until then). But a Gemini 4 Argon message isn't billed by the token: the table below has its count on every plan.

Gemini 4 Argon on every llmwise plan
PlanGemini 4 Argon
Free ($0)Not in the trial
Plus ($10)Up to 31 a month, about $0.32 each
Pro ($20)Up to 62 a month, about $0.32 each
Max ($50)Up to 200 a month, about $0.25 each
Ultra ($100)Up to 450 a month, about $0.22 each
Studio ($200)Up to 1,000 a month, about $0.20 each

A paid plan's month is one allowance the models share. So a monthly count is the most you get if the month goes to that model, and “each” is the plan's price divided by it. Every message's price is shown before you send it. Every plan.

The counts above come with each plan's fair-use limit, in AI cost a month: Plus's is $3.75, Pro's $7.50, Max's $20, Ultra's $42, Studio's $85. That leaves room for every message at typical sizes, less if messages run very long or research-heavy. Every limit, explained.

How did Gemini 4 Argon do on our test prompts?

Beside Claude Opus 5.5 and Kimi K3, the models from other makers nearest in price per message.

Gemini 4 Argon and the nearest-priced rivals: prompts passed
Prompt kindGemini 4 ArgonClaude Opus 5.5Kimi K3
Writing4 of 54 of 54 of 5
Summarization5 of 55 of 53 of 5
Support replies3 of 55 of 54 of 5
In total47 of 5049 of 5046 of 50

All passed every prompt on coding, math, data analysis, translation, SQL, answering from documents, and tool use. Through OpenRouter, in our test runs of September 27, 28, 29 and October 2, 7, 8, 9, 15, 2026; every model got the same prompts. Read the replies.

Sources

  1. [1] Google: Gemini 4 Argon, built to solve your hardest problems, published .
  2. [2] Google: Gemini 4 Argon, our next era of frontier intelligence, published .
  3. [3] Google AI for Developers: What's new in Gemini 4 Argon, checked .
  4. [4] Google AI for Developers: Gemini 4 Argon, checked .
Bar chart: Gemini 4 Argon messages on each llmwise plan. Plus ($10): up to 31 a month; Pro ($20): up to 62 a month; Max ($50): up to 200 a month; Ultra ($100): up to 450 a month; Studio ($200): up to 1,000 a month.
llmwise's published counts, plan by plan.

Gemini 4 Argon: what it means for you

Can I use Gemini 4 Argon in llmwise?

Yes, since October 14, 2026. Gemini 4 Argon's messages a month: up to 31 on Plus ($10), 62 on Pro ($20), 200 on Max ($50), 450 on Ultra ($100), 1,000 on Studio ($200). It isn't in the free trial.

Gemini 4 Argon is in llmwise

Up to 62 Gemini 4 Argon messages a month on Pro ($20). Its count shows before you send.

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