Comparing variations on the Nodes canvas used to mean one Send per idea. The new Batch panel in the side panel takes a prompt list (one per line), reference images from your Library, and a seed list — and queues the full cross-product in one shot, up to 24 lanes. Three prompts times two seeds is six results painting onto your canvas as they finish, exactly like a normal production.
Tap Estimate first and every lane gets its own itemized cost line before the Queue button unlocks — you approve exactly what fans out, never a surprise total. Lanes run under the same production queue that powers multi-scene videos, so a big batch drains steadily instead of tripping the parallel-run limit.
API users get the same power: send inputs.batch_items on POST /runs with your graph, and POST /runs/preflight returns the per-item itemization.