Google Gemini 4 Argon Guide

Gemini 4 Argon is Google’s new frontier AI model, announced on September 30, 2026. Google calls it its frontier model for real-world coding, enterprise knowledge work, and cyber defense. It is a new model, not a fine-tune of an earlier one.

It is built for:

• Long, multi-step tasks
• Complex software engineering
• Legal, finance, and other professional work
• Charts, long videos, and many documents at once
• Creative writing

Argon is built to finish long jobs, not just answer quick questions.

September 30

Trusted cyber defenders and internal Google teams first

Next

Paid API customers and Google AI Ultra subscribers

October 13

Gemini app access for Google AI Pro and Ultra subscribers

Google released it in phases for safety. Free Gemini users were not included at launch.

Context window

About 1 million tokens

Output

Up to 1 million tokens, up from 64,000 before

Inputs

Text, images, video, audio, and PDFs

Output type

Text

• More direct answers, with fewer caveats and stock phrases
• More progress updates during long work
• A tasks mode toggle, so Gemini can keep working while you are away
• Connections to more than 40 apps, including Instacart, OpenTable, Adobe, and Shopify
• Easier switching to Google Antigravity’s agentic coding, now in the Gemini macOS app

Model ID

gemini-4-argon

Where

The paid tier of the Gemini API in Google AI Studio and Android Studio, and Google Cloud for enterprises

Launch price

$2 per million input tokens and $10 per million output tokens

Later price

$4 input and $20 output after the introductory period

Caching

Cached input tokens cost 95% less

Google reports that Argon:

• Set a new record on DeepSWE v1.1 for software engineering, at 77.9%
• Leads the Vals Index for professional tasks
• Ranks first on Zapier’s AutomationBench
• Ties for first on the CWE-bench cybersecurity benchmark
• Leads a benchmark for resisting indirect prompt injection

These are Google’s own results. Test it on your own work.

• Big coding projects and migrations
• Research across many long documents
• Financial and legal analysis, with expert review
• Turning long videos and charts into insights
• Multi-step tasks across your connected apps

• State the goal and what done looks like
• Share the files and links it should use
• Set rules, budgets, and deadlines
• Ask for progress updates
• Tell it what needs your approval

Review these five contracts. List every renewal date, notice period, and price increase in one table, flag unusual terms, and cite the page for each. Do not contact anyone.

• Approve anything that buys, books, sends, or shares
• Connect only the apps a task needs
• Check your Gemini Apps activity and data settings
• Do not share passwords or sensitive personal data
• Have experts review legal, medical, and financial outputs

• Access depends on your plan and country
• Long tasks and huge outputs use more of your limits or API budget
• It can still make mistakes, so verify important facts
• Benchmarks are mostly self-reported so far

Goal: [what you want done]. Context: [who you are, files, and links]. Rules: [limits, budget, deadline, tone]. Output: [format and length]. Work step by step, give me progress updates, cite sources, and ask before any action that sends, buys, books, or shares.