Google on Wednesday announced Gemini 4 Argon, a new frontier AI model designed to sustain deep reasoning across complex, long-running tasks in software engineering, enterprise work, cybersecurity and creative writing.
Argon is designed to work through much larger and more complicated problems without losing track of earlier steps. Google expanded its output limit from 64,000 tokens to 1 million tokens, giving the model more room to reason and produce lengthy results during a single task.
Google says Argon set a new state of the art on DeepSWE v1.1 with a score of 77.9% for real-world, long-horizon software engineering. It also ranked first on Zapier’s AutomationBench at 51.3% and scored 91.7% on LVBench for long-video understanding. Gemini 4 Argon beat out most scores from OpenAI’s GPT-6 Astra and also easily topped Anthropic’s Claude and its Fable 5.1 and Opus 5.5 models.
Google set introductory API pricing at US$2 per million input tokens and US$10 per million output tokens, with cached input tokens at 95% off the input token price.
Cybersecurity is another major focus. Google says Argon can autonomously find, validate and patch critical software vulnerabilities. Wiz has already used the model through its Scan for Good program, where Argon identified a critical vulnerability exposing sensitive personal information in healthcare software used by hospitals worldwide.
Thousands of Google employees are also using Argon internally. Google says the model helped improve a quantum computing algorithm beyond a published baseline by 40% within minutes and contributed to memory optimizations that freed more than 300 TiB across its data centres.
Access remains limited for now, as Argon is initially rolling out to trusted cybersecurity defenders through Google’s Fairwind Program while the company tests safeguards and gathers feedback. Broader availability is planned for developers, enterprises and consumers, starting with paid API customers and Google AI Ultra subscribers, but Google provided no launch dates.
For Canadians, there is no confirmed availability date or Canada-specific rollout information yet. Google says it plans to expand access only after further safety testing, including work on misuse prevention, prompt injection attacks and secure testing environments.
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