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Grok 4.20

Grok 4.20 is xAI’s latest flagship model, centered on a 2M-token context window, multi-agent reasoning, and API pricing. It also shows how xAI is turning a “truth-first” stance into a product strategy that affects cost, latency, and model selection for developers.

2 articles

Grok 4.20: xAI's new flagship model explained
Model Releases/Apr 3

Grok 4.20: xAI's new flagship model explained

xAI’s Grok 4.20 adds a 2M-token context window, multi-agent reasoning, and API pricing from $2 per million input tokens.

Grok 4.20 pushes xAI’s truth-first bet
Model Releases/Apr 3

Grok 4.20 pushes xAI’s truth-first bet

xAI’s Grok 4.20 arrived in beta on Feb. 17, 2026, after a $20B raise and a SpaceX deal that put xAI at $250B.