Gemini 4 Argon: Features, Pricing & When You Can Use It

Last updated: October 2, 2026

Gemini 4 Argon is Google's new frontier AI model, announced on September 30, 2026, and not yet open to the public. The first Gemini 4 model is rolling out to a group of trusted cyber defenders through Google's Fairwind Program. Paid API customers and Google AI Ultra subscribers are next in line, and Google has not published a date for either group.

This page separates 4 kinds of information: what is live, what Google has announced, what outlets report, and what is unknown. Each section states which kind applies.

What is the status of Gemini 4 Argon today?

Gemini 4 Argon is announced and in limited rollout, with no public access as of October 2, 2026. The table lists the status of the 6 questions readers ask most.

What is Gemini 4 Argon?

Gemini 4 Argon is the first model in Google's Gemini 4 generation, built for long, multi-step work in software engineering, knowledge work, and cybersecurity defense. Koray Kavukcuoglu, Senior Vice President of Google DeepMind and Google's Chief AI Architect, introduced the model in Google's announcement post.

Google describes Argon as a model for "deep reasoning across complex, long-horizon workflows." The announcement does not explain the name Argon and does not mention any other Gemini 4 model, such as a Flash or Pro version.

What features of Gemini 4 Argon has Google confirmed?

Google has confirmed 5 features of Gemini 4 Argon. Every benchmark number below is Google's own figure from the announcement, not an independent test.

1. Output limit of 1 million tokens. Google raised the output token limit to 1M tokens, up from the previous 64K tokens.
2. Software engineering. Google reports a score of 77.9% on DeepSWE v1.1. Argon agents are migrating C and C++ codebases to Rust inside Google, including more than 800,000 lines of the Fuchsia Zircon kernel.
3. Knowledge work. Google states that Argon leads the Vals Index, which measures finance, coding, legal, and tax work, and ranks first on AutomationBench with 51.3%.
4. Video analysis. Google reports 91.7% on LVBench, a benchmark for long video.
5. Cybersecurity defense. Google states that Argon "can autonomously find, validate, and patch critical software vulnerabilities" and ties for first place on CWE-bench v1 with 68%.

Google lists 4 safety areas for the model: defending against misuse, defending against prompt injection attacks, monitoring for misalignment, and hardening systems. Google adds that the company is taking part in the U.S. government's voluntary process for pre-release model access.

Who can use Gemini 4 Argon right now?

Two groups can use Gemini 4 Argon right now: trusted cyber defenders in Google's Fairwind Program and Google's internal teams. Google states that the model is "rolling out to a set of trusted cyber defenders through our Fairwind Program" and that thousands of Googlers already use Argon in internal workflows.

The Fairwind Program is a limited access program that Google launched on September 2, 2026. The program serves 5 types of organization: government agencies, critical infrastructure operators, core technology platforms, Google Cloud customers, and cybersecurity partners. Google counted more than 650 participating partners at launch. The Fairwind announcement gives no public application steps.

Fairwind members and Google's internal teams receive a version of Argon without cyber guardrails. Google's wording is: "For trusted defenders and our own internal teams at Google, we'll be releasing Argon without cyber guardrails." The public version will ship with guardrails that Google is still adjusting.

When can developers and Google AI Ultra subscribers use Gemini 4?

Developers and Google AI Ultra subscribers have no access date yet. Google's only timing statement is that the company will make Argon available "to developers, enterprises, and consumers as soon as possible", starting with paid API customers and Google AI Ultra subscribers. The announcement post carries the heading "Rolling out soon" for this group.

The order of access that Google has announced has 3 steps:

1. Fairwind Program defenders and Google internal teams: live now.
2. Paid Gemini API customers and Google AI Ultra subscribers: announced, no date.
3. Other developers, enterprises, and consumers: announced, no date and no plan details.

Google links the wider release to feedback from early testers and to work on guardrails. A free tier, Google AI Pro access, and Google AI Plus access are not mentioned in the announcement.

How much does Gemini 4 Argon cost?

Gemini 4 Argon costs $2 per 1 million input tokens and $10 per 1 million output tokens at the announced introductory API price. The standard price that follows is $4 per 1M input tokens and $20 per 1M output tokens. Both prices come from Google's announcement post.

Cached input tokens cost 95% less than the input price. That discount works out to $0.10 per 1M cached tokens at the introductory rate and $0.20 at the standard rate.

Three pricing points are not published:

• The end date of the introductory period. Google's post says the standard price applies "after the introductory period expires" and gives no date. 9to5Google reports the same gap in its coverage of the announcement.
• The price of Argon inside the Gemini app. Google has not said whether Google AI Ultra includes Argon at the current plan price or with usage limits.
• The price for batch processing or long prompts. The announcement lists one input price and one output price only.

The Gemini API pricing page, last updated on October 1, 2026, does not list Gemini 4 Argon. No customer can pay the announced price until Google opens API access.

Which Google products support Gemini 4 Argon?

No public Google product lists Gemini 4 Argon as of October 2, 2026. Four official pages were checked for this article, and none of the 4 shows the model:

• The Gemini API models page lists Gemini 3.8 Flash as the newest stable model and has no Argon model ID.
• The Vertex AI model list on Google Cloud lists Gemini 3.8 Flash Cyber and has no Argon entry.
• The Gemini app release notes end with a September 30, 2026 entry about skills in Gemini and do not mention Gemini 4.
• The Google AI plans page does not mention Gemini 4 or Argon on any plan.

Google's announcement does not name Google AI Studio, Vertex AI, the Gemini app, or Google Antigravity as launch surfaces. The announcement names customer groups, paid API customers and Google AI Ultra subscribers, and not the products those customers will use.

Which regions get Gemini 4 Argon?

Google has not published a list of regions or countries for Gemini 4 Argon. The Fairwind Program announcement describes its partners as global and names no countries. Rollout dates per country for the Gemini API and for Google AI Ultra are unknown.

What do outlets report about Gemini 4 Argon?

Outlets add 3 points to Google's own posts.

• The Hacker News reports that the staged rollout lets early users test the model and help Google improve safeguards before broader availability, in its October 1, 2026 article.
• SecurityWeek reports that Google did not name the healthcare software in which Argon found a critical vulnerability, and did not say whether the flaw is fixed, in its October 1, 2026 article. Google's post credits the security company Wiz with that finding.
• 9to5Google reports that Google has announced no end date for the introductory price.

No named outlet has reported a firm public release date. Dates that circulate on social media for a Gemini app release are not confirmed by Google and are left out of this page.

What is still unknown about Gemini 4 Argon?

Google has not published 7 details about Gemini 4 Argon:

1. Release date for paid API customers and Google AI Ultra subscribers.
2. End date of the introductory API price.
3. Input context window size.
4. API model ID.
5. Knowledge cutoff date.
6. Supported regions and languages.
7. Usage limits inside the Gemini app.

Readers weighing Argon against OpenAI's newest model can read our page on GPT-6.1 Sol, which OpenAI launched on September 29, 2026.

Frequently asked questions

Is Gemini 4 available now?

No, Gemini 4 is not available to the public as of October 2, 2026. Gemini 4 Argon is rolling out to trusted cyber defenders in Google's Fairwind Program and to Google's internal teams. Paid API customers and Google AI Ultra subscribers come next, with no date published.

What is the Gemini 4 release date?

Google announced Gemini 4 Argon on September 30, 2026, and has not published a public release date. Google's only timing statement for developers, enterprises, and consumers is "as soon as possible."

How much does the Gemini 4 Argon API cost?

The Gemini 4 Argon API costs $2 per 1M input tokens and $10 per 1M output tokens at the announced introductory price. The standard price is $4 per 1M input tokens and $20 per 1M output tokens. Google has not published the date on which the introductory price ends.

Can Google AI Ultra subscribers use Gemini 4 Argon?

No, Google AI Ultra subscribers cannot use Gemini 4 Argon yet. Google names Google AI Ultra subscribers and paid API customers as the first groups after the Fairwind Program. The Google AI plans page does not list the model.

What is the Fairwind Program?

The Fairwind Program is Google's limited access program for cyber defense, launched on September 2, 2026. The program gives government agencies, critical infrastructure operators, core technology platforms, Google Cloud customers, and cybersecurity partners access to Google's most advanced cyber defense models. More than 650 partners took part at launch.