Google Launches Gemini 4 Hydrogen as Faster, Cheaper Successor to Gemini 3.8 Flash
Google released Gemini 4 Hydrogen, replacing Gemini 3.8 Flash across its products with immediate broad access, unlike the staged, security-first rollouts of Argon and Carbon. Google claims it is 2.5x faster, cuts fabricated claims more than fivefold, triples Flash's Terminal-Bench score, and slightly beats Argon on the Artificial Analysis Intelligence Index in xhigh mode. It is also being integrated into Google Search, and API pricing is unchanged at $1.50/$7.50 per million tokens.
Skynet Chance (+0.01 pp): Wide, immediate deployment of a cheap model with near-frontier capability, without the security-conscious staging used for its siblings, slightly broadens exposure to agentic systems. The large cut in fabricated claims modestly offsets this.
Skynet Date (1 day sooner): Cheap, fast frontier-level capability aimed at agentic coding workflows speeds the spread of autonomous AI use. That brings potential control challenges somewhat sooner.
AGI Progress (+0.02 pp): A fast, economical model matching or beating a flagship on an intelligence index, with large coding gains and fewer hallucinations, shows meaningful capability and efficiency progress. It is still an iterative release rather than a fundamental breakthrough.
AGI Date (1 day sooner): Rapid capability diffusion into cheaper tiers, plus its use as an engine for agentic coding tools, compresses development cycles. This modestly accelerates the AGI timeline.
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