Describe Google's Gemma model family, a series of open-weight artificial intelligence models designed for accessibility and innovation.

Tracing their lineage back to the sophisticated Gemini program, the text outlines the evolution from initial text-based models to more advanced, efficient, and specialized variants like those for vision (PaliGemma), safety (ShieldGemma), medicine (MedGemma), and coding (CodeGemma). It highlights technological advancements like multimodality, expanded context windows, and efficiency innovations such as Quantization-Aware Training (QAT) and mobile-first architectures (Gemma 3n).

The diverse applications and technical specifications underscore Google's strategic aim to cultivate a broad AI ecosystem and establish a strong presence in the open-model landscape.