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Grok 4.1 Fast Reasoning | Sulat AI Models
Model details
Grok 4.1 Fast Reasoning
Find out what this model does, when it was released, and which provider serves it.
Vercel AI Gateway
xai/grok-4.1-fast-reasoning
grok
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Provider docs
Quick Info
Provider
Vercel AI Gateway
Model key
xai/grok-4.1-fast-reasoning
Release date
Jul 9, 2025
Last updated
Jul 9, 2025
Knowledge
What does this mean?
2024-10
Input modalities
What do these mean?
text
Output modalities
What do these mean?
text
Capabilities
What do these mean?
Reasoning, Tool calling, Temp controls
Cost summary
In $0.20 · Out $0.50
Limit summary
2,000,000 token context window
Cost
What do these mean?
Input token cost
$0.20
Output token cost
$0.50
Limits
What do these mean?
Output tokens
30,000 tokens
Context window
2,000,000 tokens