Sapiens2 is pretrained on 1B human images — better for photos of people. Chrome AI uses the browser's built-in Gemini Nano to describe images (Chrome 138+ only, requires chrome://flags/#prompt-api-for-gemini-nano). Takes effect on next model load. Switching requires a page reload.
The prompt sent to Gemini Nano to describe each image. Changes apply to new embeddings only. Only shown when Chrome AI is selected.