Google rolls out Gemini 4 Hydrogen, finally replacing 3.8 Flash

Selection record

AdmittedSum of both 164 ≥ twice the threshold 152

Source tier

Media and individuals; this tier's threshold is 76

Pre-filter

passed：Gemini新模型发布及性能评测

Why it was chosen

Google has replaced 3.8 Flash with Gemini 4 Hydrogen, with concrete comparisons on speed, hallucinations and Terminal-Bench.

Same event

5 more sources reported it

A model scores each item twice, independently, against one written standard, out of 100. An item is admitted only when the two scores add up to twice the threshold. The threshold is set per source tier.