Google has unveiled Gemini 4 Argon , a frontier model in the Gemini family aimed at complex, long-running work across coding, knowledge work, cybersecurity and science. Announced on September 30, 2026, Argon combines native multimodal inputs with a unified context window of up to 1 million tokens , giving teams a way to work across large collections of text, images, audio and video within a single model session. The important development is not a narrowly defined prompt-to-synthesizer featu...