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grok-4.20-beta-0309-reasoning

xAI · grok-4-20-beta-0309-reasoning

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

Specification

xai listing

Context
1M
Max output
1M
Released
2026-03-09
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image
Output
text

Price

US dollars per million tokens · xai list price

Input
$1.25
Output
$2.50
Cache read
$0.20

Long-context price tiers

the rate above each context threshold

AbovePrice$/M
200KCache read$0.40
200KInput$2.50
200KOutput$5.00

Available from 4 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
xaivendor$1.25$2.50$0.20—1M1M—
302ai$2.00$6.00——2M30K—
llmgateway$2.00$6.00$0.20—2M30K—
llmgateway-providers$2.00$6.00$0.20—2M30K—

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