Google

Gemini 4 Argon is Google's new flagship frontier model, released globally on October 13, 2026 for developers and enterprises through the Gemini API, for Google AI Ultra subscribers inside Google Antigravity, and for Ultra and Pro subscribers in the Gemini app and AI Mode in Search. It targets deep, multi-step work in domains that have been slow to adopt general-purpose models, with a stated focus on coding, finance, legal, cybersecurity, and science, where Google says it ranks first on the Vals Index that measures performance across those economic sectors. The launch matters because it reframes how Google is positioning Gemini against OpenAI and Anthropic, pitching Argon less as a chat assistant and more as an engine for long-horizon engineering and research tasks. Google reports that teams using Argon in Antigravity have increased agentic code submissions by more than 35% while reducing code rollbacks by nearly a third , with internal case studies spanning a Chromium refactor across a roughly six million line legacy folder, overnight optimizations to the open-source Agent Development Kit, and speedups to the xTB quantum chemistry package. Pricing starts at $2 per million input tokens and $10 per million output tokens, with cached input tokens discounted by 95%. The release was announced by Sundar Pichai, with the model introduction authored by Koray Kavukcuoglu, SVP at Google DeepMind and Chief AI Architect, signaling that Argon is the production face of DeepMind's current frontier research rather than a standalone product line.