TxGemma is a specialist, not a generalist — it's built specifically for therapeutic and biomedical reasoning, making it unusually fluent in drug discovery concepts, clinical trial data, and molecular biology. It thinks in the language of pharmacology, handling tasks like toxicity prediction and drug-target interaction that would trip up a general-purpose model. The trade-off is narrow focus: outside its therapeutic domain, it offers little advantage over its base Gemma lineage.