xAI Corp.
grok-4.2-beta
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.
👁Vision🧠Reasoning🔧Tool calling⚡Caching🖥Computer use
Pricing per 1M tokens
Input
$2.00
Output
$6.00
Cache write
$2.00
Cache read
$0.20
Specifications
Context window2M tokens
Max outputUnlimited
API typechat
AddedMar 19, 2026
Model IDxai/grok-4.2-beta
Privacy & data
Data retentionYes (30 days)
Used for trainingUnknown
Provider location🇺🇸 US
Privacy policyxAI Privacy Policy →