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Grok 4.2 Fast | Sulat AI Models
Model details
Grok 4.2 Fast
Find out what this model does, when it was released, and which provider serves it.
ZenMux
x-ai/grok-4.2-fast
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Provider docs
Quick Info
Provider
ZenMux
Model key
x-ai/grok-4.2-fast
Release date
Mar 20, 2026
Last updated
Mar 20, 2026
Knowledge
What does this mean?
2025-08-31
Input modalities
What do these mean?
text, image, video
Output modalities
What do these mean?
text
Capabilities
What do these mean?
Reasoning, Tool calling, Attachments, Temp controls
Cost summary
In $3.00 · Out $9.00
Limit summary
2,000,000 token context window
Cost
What do these mean?
Input token cost
$3.00
Output token cost
$9.00
Limits
What do these mean?
Output tokens
30,000 tokens
Context window
2,000,000 tokens