Grok 4.20, the version Elon Musk has been teasing since last August is now live in beta at grok.com.

The system runs your query through a small team of up to four collaborating agents. They coordinate with one another, and one agent acts as the “lead,” guiding the overall reasoning process.

In terms of output quality, this setup may not dramatically outperform a single, well-structured long reasoning chain. But it could deliver results faster by splitting tasks across agents and running parts of the reasoning and search process in parallel.

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