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.
How many image tokens each photo gets. Switch to Light if the GPU resets while embedding. Each choice keeps its own cache, and changing it reloads the page.
The prompt sent to Gemini Nano to describe each image. Changes apply to new embeddings only. Only shown when Chrome AI is selected.