Gemini 4 Argon

Gemini 4 Argon API: Google's first Gemini 4 frontier model, built for deep reasoning over long workflows, with a 1M-token output limit

Gemini 4 Argon is Google's new frontier model and the first model of the Gemini 4 generation, announced by Google DeepMind on September 30, 2026. Google built it to sustain deep reasoning across complex, long-horizon workflows and reports frontier performance in real-world software engineering, enterprise knowledge work such as legal and finance, cybersecurity defense and creative writing. Its output limit rises to 1M tokens per request (up from 64K), so it can think and write hundreds of thousands of tokens in one go. Google's announced API price is $2 per million input tokens and $10 per million output tokens for an introductory period (cached input 95% off), then $4 / $20. Access is rolling out first to trusted cyber defenders through Google's Fairwind Program, then to paid API customers and Google AI Ultra subscribers. NezhaGate will add it as soon as paid API access opens: leave your email and we will tell you the day it goes live.

Released by the vendor: 2026-09-30 · not yet callable on NezhaGate