Scale is a fixed rubric
Always send all five levels0 through 4. No sparse rubrics, no alternate ranges, no fewer or more levels. Each level must be a distinct integer in that set; anything else is rejected with HTTP 400. See Scale decisions for the exact shape.
Content and question length
The full rendered request must fit the plan’s context ceiling: roughly 32K tokens by default, or up to 128K tokens on Growth (Extended context). That budget includes:contentquestion.instructions- option descriptions (Choice)
- scale rubric lines (Scale)
- sort item bodies (Sort)
- tag specs (Tags)
- any grounding-added search context