Grok-4 Heavy: xAI’s Multi‑Agent AI Powerhouse (Architecture, Benchmarks, & Use Cases)

Grok-4 Heavy is the latest high-performance AI model from Elon Musk’s AI startup, xAI, and it’s being hailed as a “multi-agent” breakthrough in AI. Unveiled in July 2025, Grok-4 Heavy builds on xAI’s fourth-generation Grok model to deliver unprecedented reasoning…