Google unveils Gemini 4 Argon frontier model with 1M output tokens

Google announced Gemini 4 Argon, its new frontier model built for deep reasoning across long-horizon workflows. Output limit jumps from 64K to 1M tokens, and it leads benchmarks with 77.9% on DeepSWE v1.1 and 68% on CWE-bench v1. It rolls out first to Google AI Ultra subscribers and paid API customers.

• Output token limit raised from 64K to 1M tokens
• DeepSWE v1.1 score of 77.9% vs 74.2% for Claude Opus 5.5
• CWE-bench v1: 68%, tied for first in vulnerability remediation
• LVBench: 91.7%, state of the art in long video understanding