Rate limits (/developers/rate-limits)
Updated documented rate limits for Imagine models to tiered values (T0–T4):
grok-imagine-imageandgrok-imagine-image-2.0: T0: 6, T1: 12, T2: 25, T3: 50, T4: 100grok-imagine-videoandgrok-imagine-video-1.5: T0: 10, T1: 20, T2: 39, T3: 79, T4: 158
Reasoning (/developers/model-capabilities/text/reasoning)
Clarified that the "xhigh" reasoning effort level is available on grok-4.6 and later (requests on unsupported models such as grok-4.5 are still treated as "high").