Preview build — figures marked “✓” or in green are sourced (benchmarks by Artificial Analysis); treat everything else (value scores, “Est.” figures, unmarked prices and changes) as illustrative. Methodology

← All LLM models
LLMSpaceXAI

Grok 4.1 Fast (Reasoning)

List price

Illustrative sample — this price is not sourced or verified. Don't rely on it for decisions.

Intelligence index
30.6
Est. value
Context
Released
Nov 19, 2025

Intelligence index 30.6 measured by Artificial Analysis — retrieved Aug 2, 2026.

Unverified note no hosted list price published in our sources (typically open-weight models you host yourself)