Gemini 4 Hydrogen

Google released Gemini 4 Hydrogen, a faster successor to Gemini 3.8 Flash aimed at coding and agents, and made it the default model for AI Mode in Search.

Hydrogen is rolling out in the Gemini API, AI Studio, Google Cloud (generally available as gemini-4-hydrogen), Gemini for business, the Gemini app and Google Search, where it now powers AI Mode and handles more complex, multi-part questions. Google says it finishes tasks 2.5 times as fast as Gemini 3.8 Flash and scores 57% on its Terminal-Bench 4.1 test vs 18.2% for Flash (company figures). It defaults to high reasoning and adds an xhigh setting. Standard API pricing is $1.50 per million input and $7.50 per million output tokens, twice Flash's introductory rate; Batch and Flex tiers cost half.

Status

Released

Date

Nov 12, 2026

Maker

Google

Type

AI model

Price

$1.50 / $7.50 per million input / output tokens

Categories

AI

Sources

• Google blog
• VentureBeat
• The Verge (Search)

Launch dates can change. Check the sources for the latest. Last reviewed Nov 14, 2026.