Google unveils Gemini 4 Argon, an AI model aimed at finding and patching software bugs
In brief
- Gemini 4 Argon, the first Gemini 4 series model, launched from Google on September 30, 2026.
- Argon scored 77.9% on DeepSWE v1.1, ahead of GPT-6 Astra and Claude Opus 5.5, Google says.
- Fairwind Program access, covering more than 650 vetted cyber defense organizations, is the current entry route.
- Introductory pricing is $2 per million input tokens and $10 per million output tokens.
- Broader access for paid API customers and AI Ultra subscribers has no date from Google yet.
What Google is claiming
Google is also pitching Argon for long-running, complicated workflows in software engineering and in knowledge-heavy fields like law and finance, according to Crypto Briefing. Output length is the biggest jump. Argon can produce up to 1 million tokens in a single response (earlier models were capped at 64K).
The benchmark numbers come from Google. LeoDex News has not independently verified them. Google says Argon scored 77.9% on DeepSWE v1.1, a test built around real-world software engineering tasks. By Google's figures, OpenAI's GPT-6 Astra scored 74.1% on the same test and Anthropic's Claude Opus 5.5 scored 74.2%. Google also reported a top score of 68% on the vulnerability remediation portion of CWE-bench v1.
The company shared internal results too. It says the model helped move more than 800,000 lines of code in the Zircon kernel (part of Fuchsia OS) to Rust, and that the same work saved 300 TiB of memory across its data centers. LeoDex News couldn't independently review Google's own materials or verify these figures.
Who gets access
Argon isn't open to everyone.
Access runs through Google's Fairwind Program, which includes more than 650 vetted cyber defense organizations plus internal Google teams. CrowdStrike and Palo Alto Networks are among the participants. Google says Wiz, one of the initial deployers, used the model to uncover significant flaws in widely used healthcare software.
Google expects to open Argon to paid API customers and Google AI Ultra subscribers. When will that happen? Google hasn't said, and it hasn't tied the expansion to a specific date.
Pricing
Argon starts at an introductory rate of $2 per million input tokens and $10 per million output tokens. Google's pricing roadmap allows those rates to rise to $4 and $20 respectively, so the launch rates aren't fixed.
Frequently asked questions
Who can use Google's Gemini 4 Argon right now?
Argon isn't generally available yet. Access runs through Google's Fairwind Program, which includes more than 650 vetted cyber defense organizations plus internal Google teams. CrowdStrike and Palo Alto Networks are among the participants. Google expects broader access for paid API customers and Google AI Ultra subscribers but hasn't given a date.
How much does Gemini 4 Argon cost?
Google says Argon starts at an introductory rate of $2 per million input tokens and $10 per million output tokens. Under Google's pricing roadmap, those rates can rise to $4 and $20 respectively.
