Google ships Gemini 4 Hydrogen: faster and cheaper, beats Argon on AA Index
_philschmid · x · 2026-11-13
Google released Gemini 4 Hydrogen in AI Studio and the Gemini API, a speed-optimized model positioned for fast execution, research loops and code-to-test cycles, pairing with Carbon in multi-model workflows.
- Beats Argon on the Artificial Analysis Intelligence Index at default thinking (51 vs 50, 54 at xhigh)
- 57% on Terminal-Bench 4.0
- Four thinking levels: low/medium/high/xhigh
- Priced $1.50/$7.50, with a free tier in AI Studio and the API
- Rolling out to paid AI Pro/Ultra subscribers in Antigravity, Gemini App, Google Search and Google Cloud
The shared benchmark chart pits it against Claude Sonnet 5.5 and GPT-6.1 Terra: it leads on SWE-sweep (13.5%), Agents' Last Exam (71.6%), AutomationBench-AA (76.1%), Vending-Bench 2 ($14,549), MKA, Chartography and HLE-Diamond (58.8%), but trails Sonnet 5.5 on Terminal-Bench 4.1 (57.0% vs 63.9%), OSWorld-2.1 and Terminal-Bench-Science. The AA Index speed-quality curve shows xhigh reaching 53 in 12 minutes, well ahead on latency.
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