Grok 4.20 Beta is xAI's newest flagship model 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.
Specification
most-agreed values
Context
2M
Max output
2M
Released
2026-03-19
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image
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
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| requesty | $2.00 | $6.00 | $0.20 | $2.00 | 2M | 2M | — |
More from xAI
most-hosted first