OpenRouter sets no size cap on Span-01 spans

OpenRouter says there is no cap on span size for Respan’s Span-01 and Span-01 Lite. A request can be plain text or the full span of system, user, assistant, and tool messages.

OpenRouter describes the models as a way to check agent behavior at scale: gate a risky tool call before it runs, flag support conversations that need a human, and label eval traces in bulk.