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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.
Firmware
grok-code-fast-1
grok
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Provider docs
Quick Info
Provider
Firmware
Model key
grok-code-fast-1
Release date
Aug 28, 2025
Last updated
Aug 28, 2025
Knowledge
What does this mean?
2023-10
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 $1.50
Limit summary
256,000 token context window
Cost
What do these mean?
Input token cost
$0.20
Output token cost
$1.50
Limits
What do these mean?
Output tokens
128,000 tokens
Context window
256,000 tokens