Small serverless tier now covers models under 800B parameters, up from 600B

The Small serverless model tier now includes models with fewer than 800B total parameters, up from 600B. The Medium tier now covers models from 800B to less than 1.6T.

This moves models such as GLM 5.3 into the Small tier. The ceiling values for each tier are unchanged. See Serverless rate limits for the current thresholds and ceilings.