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Grok 4.20 (Reasoning)

xAI · grok-4-2

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Reasoning Grok for document-heavy analysis and long-horizon tool use

Specification

most-agreed values

Context
2M
Max output
30K
Released
2026-03-09
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$2.00
Output
$6.00
Cache read
$0.20
Cache write
$2.00

Available from 1 host

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
requesty$2.00$6.00$0.20$2.002M30K—

Other listings of this model

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The corpus files Grok 4.20 (Reasoning) under several keys. This page is the grok-4-2 listing. The full record — every host, every price and every benchmark score — is on the main Grok 4.20 (Reasoning) page.

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