xAI
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Listed July 2025
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Multimodal Foundation
Grok 4
Arena #147 • score 1411 ±4
Proprietary model from xAI, listed July 2025. Arena text score 1411 (#147 of 414 entries). $1.25 input / $2.50 output per 1M tokens. 256K tokens context.
Parameters
Not disclosed
Context Window
256K tokens
Input / 1M tokens
$1.25
Output / 1M tokens
$2.50
Benchmark Results
- Arena Text Elo: 1411 (#147 of 414 on arena.ai · ±4 · 39,691 votes · variant: grok-4-0709)
- AA Intelligence Index: 22.5 (Artificial Analysis v4.3 · best setting: Grok 4 · checked 2026-10-11)