Google Releases Gemini 4 Hydrogen With 2.5x Speed and Four Thinking Levels

Key Info

Google introduced Gemini 4 Hydrogen, a model built for speed and efficiency in everyday tasks, coding, and agentic workflows, rolling out today across Google's consumer and developer surfaces.

Highlights

• Completes tasks 2.5x faster than 3.8 Flash, according to Google
• Offers 4 thinking levels so users only pay and wait for the reasoning depth a task needs
• Follows instructions more closely and calls the right tools with less back-and-forth
• Generates clean, working layouts in fewer prompts for prototyping and iteration
• Rolling out globally on desktop, mobile, and web; free users access it via auto model selection, plus all tiers of AI Studio, the Gemini API, Gemini App, Search, and paid AI Pro/Ultra subscribers in Antigravity