Google · llm model

Gemini 4 Argon

Gemini 4 Argon is Google's latest language model in our dataset, released Oct 13, 2026. Proprietary, API access only. Google's newest Gemini model: a multimodal frontier model that Google claims is #1 on the Vals Index, and that sits at #1 on the LMArena Text Arena snapshot we cite. Verified against vendor sources on Oct 26, 2026.

Reported Last verified Oct 26, 2026 · All models · JSON · Markdown

ReleasedOct 13, 2026
Context window1.05M1,048,576 tokens
Max output66K65,536 tokens
LicenceProprietaryProprietary (API)

InTextImageVideoAudioPDFOutText

Key facts

Gemini 4 Argon: key facts with sources
Fact	Value	Source
Vendor	Google	n/a
Released	Oct 13, 2026 General availability date: Google's Gemini API changelog and launch post are dated Oct 13, 2026. Google announced Argon on Sep 30, 2026 but limited it to trusted cyber defenders (Fairwind Program) until the Oct 13 rollout, so some trackers list Sep 30.	source
Status	generally available	n/a
API id	gemini-4-argon	source
Context window	1,048,576 tokens (1.05M) Unified input + output token limit.	source
Max output	65,536 tokens Default; Google lists up to 1,048,576 with long decode.	source
Input	text, image, video, audio, pdf	source
Output	text	source
Licence	Proprietary (API)	source
Pricing	$2 in / $10 out per 1M tokens; from Dec 1, 2026: $4 / $20 Launch pricing runs through Nov 30, 2026, then $4 / $20. Not on the free tier.	source

Where Gemini 4 Argon sits in our data

Released Oct 13, 2026 (week 42 of 2026), in October 2026. Other models in our data released that month: GPT-6.1 Terra, Kimi K3.1 Pro, Kimi K3.1 Pro Highspeed, Nemotron 3.5 Bolt E4B (4GB), Voxtral 3, Mercury 3.
The previous Google model we track is Nano Banana 2.1 (Oct 6, 2026), 7 days earlier.
Of the 60 models in our data with a published context window, Gemini 4 Argon has the number 13 largest (1.05M tokens). Our data is not every model on the market.
Google tools we cover: Gemini Notebook, Google ADK, Gemini CLI.
All releases by date: AI model releases by month · new AI models this week. Choosing for code: best LLM for coding.

How Gemini 4 Argon differs from Gemini 3.8 Flash

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

Listed price is $2 in and $10 out, against $0.75 in and $3.75 out for Gemini 3.8 Flash (per 1M tokens).
Both list a 1.05M-token context window.
Both accept text, image, video, audio, pdf as input.
Gemini 4 Argon came out 41 days after Gemini 3.8 Flash.
Facts for the other model: Gemini 3.8 Flash.

What the sources say

These are claims from the linked pages, not our measurements.

Vendor claim (Google): #1 on the Vals Index. We did not verify this.
Neutral signal: #1 on LMArena Text Arena in the Oct 8, 2026 snapshot (score marked preliminary).

What we tested

Nothing yet. We have not run Gemini 4 Argon ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.