ChainThink reports that on April 2, according to monitoring by 1M AI News, Demis Hassabis, CEO of Google DeepMind, posted four diamond emojis on X. Shortly before, Logan Kilpatrick, a member of Google’s technical team and head of Google AI Studio and the Gemini API, posted a message containing only the word “Gemma.” With the two posts occurring close in time, this activity has been widely interpreted as a signal that Google’s open-source model Gemma 4 is about to be released.
Prior indications of the leak had already emerged: an anonymous model identified as "significant-otter" appeared on LMSYS Chatbot Arena and, when pressed by users about its identity, claimed, "I am Gemma 4, a large language model developed by Google DeepMind." Users on the Reddit community r/LocalLLaMA reported that the model responds quickly, is not a reasoning-focused model, and has passed common baseline capability tests used by the community.
Google has not yet officially announced Gemma 4. The previous open-source model, Gemma 3, is part of Google’s lightweight model family designed for the open-source community, supporting execution on a single GPU or TPU with capabilities in multilingual, multimodal, and long-context processing, and has earned a strong reputation within the open-source community.