[ExI] How the new XAI Grok 4.20 agents work

[BillK]

HOW THE XAI GROK 4.20 AGENTS WORK
February 17, 2026 by Brian Wang

<https://www.nextbigfuture.com/2026/02/how-the-xai-grok-4-20-agents-work.html>
Quote:
The four agents in Grok 4.20 (Grok/Captain, Harper, Benjamin, Lucas)
form a native, production multi-agent collaboration system that runs
on every sufficiently complex query. This is not a user-facing
framework you have to orchestrate (like AutoGen or Swarm) but a
baked-in inference-time architecture where four specialized replicas
of the underlying ~3T-parameter model (MoE) collaborate in real time.

This 4-agent system is currently the clearest public example of moving
from “single powerful model” to “native multi-agent intelligence” at
frontier scale. It directly explains the jumps in engineering, coding,
trading, and hallucination reduction seen in early 4.20 testing.
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So, one AI (Grok 4.20) combines 4 AI agents to process tasks.
Neat!
BillK