Google releases Gemini 4 Hydrogen, a low-cost model that outperforms Argon on independent benchmarks

Google has launched Gemini 4 Hydrogen, a budget-friendly model within the Gemini 4 family. The company states that the new model achieves higher scores than Gemini 4 Argon, a frontier model, on independent intelligence rankings. According to Google, Hydrogen scored 51 points on the Artificial Analysis Intelligence Index at the high starting processing level, while Argon scored 50 points. The launch strategy for Hydrogen differs significantly from that of Argon. Argon underwent testing for nearly two weeks with members of the Fairwind Program, a vetted group of cybersecurity experts, before becoming available to paying developers on October 13. Hydrogen skipped this step and is available to everyone immediately, including users of the free version of Gemini. Koray Kavukcuoglu, who became head of Google DeepMind in August when Demis Hassabis moved to the presidency, stated in the announcement that Hydrogen was built for fast processing.

A new feature called Orchestrator, added to the coding tool Antigravity, will choose between using Hydrogen and Gemini 4 Carbon during a session. Google's testing on Terminal-Bench 4.0 found that Orchestrator can perform close to the success level of Carbon while reducing average quota usage by up to 24 percent. Gemini 3.8 Flash, released in September, serves as the baseline for most figures in this announcement. Compared to that baseline, Hydrogen completes tasks 2.5 times faster at default settings. In Terminal-Bench 4.1 tests, which measure command line performance, Hydrogen scored 57 percent, which is three times higher than the 18.2 percent achieved by the previous model. Among the early testers cited by Google, Andrew Carr, a former OpenAI scientist now chief scientist at 3D animation startup Cartwheel, said the model detected two issues that his team had been stuck on for ten days. Discovery Loop, a startup co-founded by Jeff Dean after he left Google in August, also tested the model.