i gave Grok 4.3 beta an absolutely psychotic eval and it passed conflicting records, stale CRM data, signed docs with higher precedence, prompt injection buried in the exhibits, timezone conversions, holiday-aware SLA math, annual-prepay revenue normalization, ARR, weighted gross margin, exact JSON output, and a launch recommendation that had to be correct under policy constraints Grok got all of it right that is an insane level of composure for a beta model