Models / xai / Grok 4.1 Fast

Grok 4.1 Fast

JSON →
llm

A fast inference variant of the Grok 4.1 model.

textstreamingreasoningcode-generationfunction-callingtool-usevisionprompt-cachingjson-mode
Specs
Context & limits
2M
context window
2M
max output
Lifecycle
Dates

No lifecycle dates recorded.

Resources

No resource links recorded.