Gemini 4 Hydrogen by @GoogleDeepMind is the fastest model in the Agent Arena top 10.
AI-generated summary GoogleDeepMind reports that Gemini 4 Hydrogen is the fastest model in the Agent Arena top 10. Agent Arena says a typical Hydrogen step takes 7.3 seconds, which is about 2.7 times faster than Claude Sonnet 5.5 and 3.1 times faster than GPT-6.1 Sol.