Xai
Grok 4.20 Beta Reasoning
Grok 4.20 Beta is the newest flagship model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently precise and truthful responses.
xAI model releasesModel Snapshot
TypeLanguage
ReleaseMar 11, 2026
Context2,000,000
Tagsreasoning, tool-use, vision, file-input
Overall
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Model Details
Runtime
Max Output2,000,000
Streaming speed is not measured for this model yet.
Pricing
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Output-
Catalog$1.25/M in / $2.50/M out
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