SpaceXAI: Grok 4.3

Made by x-ai.

Input price
$1.25
per 1M tokens
Output price
$2.50
per 1M tokens
Context window
1M
tokens
Quality
1,397
#154 on LMArena
Size
—
parameters
Downloads
—
on Hugging Face, last 30 days

Can I run it locally?

This model is only available through an API. Its weights are not public, so it cannot run on your own computer.

Prices: OpenRouter, refreshed 8 Oct 2026. Quality: LMArena (CC BY 4.0), leaderboard of 2 Oct 2026.