Introducing Gemini 4 Hydrogen

Google announced Gemini 4 Hydrogen, a new model designed for speed and efficiency in everyday coding and agentic workflows, complementing frontier models Gemini 4 Carbon and Gemini 4 Argon. Hydrogen surpasses Argon on the Artificial Analysis Intelligence Index at its default high thinking level (51 vs. 50, reaching 54 at xhigh) and is priced at $1.50 per million input tokens and $7.50 per million output tokens with a flat rate across its 1 million-token context window. It enables multi-model workflows via a new Orchestrator in Google Antigravity that dynamically switches between models, achieving near-Carbon success rates with 24% less quota and 19% faster completion on Terminal-Bench 4.0. Compared to Gemini 3.8 Flash, Hydrogen completes tasks 2.5 times faster, triples Terminal-Bench 4.1 scores (57% vs. 18.2%), cuts fabricated claims by over 5x, and runs 2x to 2.8x faster with 12% to 23% fewer tokens in enterprise workflows. It offers four thinking levels (low, medium, high default, and xhigh) and excels in multimodal knowledge work, web development, and agentic execution, ranking highly on benchmarks such as Agent Arena and HLE-Diamond. For consumers, Hydrogen improves the Gemini app and Search with better intent understanding, more visual responses, and broader relevant links. Safety improvements include up to 81% reduction in agentic overreach, 12x fewer misaligned actions, 96.7% honesty rate, and over 2.3x resilience against indirect prompt injection. Hydrogen is available globally today across the Gemini API, AI Studio, Android Studio, Gemini for business, Google Antigravity, the Gemini app, Google Search, and Gemini in Google Sheets.

(Source：Gemini)