Grok 4.1 Fast
unknownxAI · grok family
xAI's fast agentic tool-calling model with a 2M context window; non-reasoning variant for low-latency responses
Limits
Context2,000,000
InputUnknown
Output30,000
Modalities
Inputtext, image
Outputtext
Release info
Release2025-11-19
Last update2025-11-19
Knowledge cutoffUnknown
Provider offerings
Provider-specific prices and limits stay separate from canonical model facts.
| Provider | Provider model ID | Input | Output | Context | Output limit |
|---|---|---|---|---|---|
| No visible provider offerings yet. | |||||
Capabilities
Attachments
Yes
Reasoning
No
Tool calling
Yes
Structured output
Yes
Temperature
Yes