Gemini 4 Argon

Gemini 4 Argon is Google DeepMind's frontier Gemini 4 model for long-horizon software engineering, enterprise knowledge work in legal and finance, cybersecurity defense, and multimodal understanding of charts and video. It raises the output token limit to 1M, up from 64K. As of early October 2026 it is rolling out only to trusted cyber defenders through Google's Fairwind Program, with paid API customers and Google AI Ultra subscribers planned next and no public Gemini API or Vertex model id yet. Google's launch blog announces introductory pricing of $2 per million input and $10 per million output tokens with cached input 95% off, rising to $4/$20 after an introductory period. No first-party provider price row is stored yet, so it cannot enter ZeroEval. Catalog scores are self-reported from Google's launch blog and the DeepMind evals methodology page.