Google's Gemini 4 Hydrogen Scores 51 at the High Setting
Hydrogen also scored 54 at Xhigh and is listed at $1.50 per million input tokens and $7.50 per million output tokens.

Google announced Gemini 4 Hydrogen on Nov. 12 as a model for coding and agent workflows. It scored 51 on an intelligence index at the High setting, one point above Gemini 4 Argon at the same setting. The scores are index points, not percentages.
Hydrogen scored 54 at Xhigh. That result is at a different setting from Argon's cited score of 50 at High.
Hydrogen’s listed price is $1.50 for each million input tokens and $7.50 for each million output tokens. Argon's paid API rates are $2 and $10, respectively, through Nov. 30. They rise to $4 per 1 million input tokens and $20 per 1 million output tokens on Dec. 1.
Hydrogen is adapted from Gemini 4 Carbon and built for faster execution. Google positions Carbon and Argon for deeper, longer-running reasoning.