Grok 4

xAI · 2025 · Multimodal LLM · USA

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A to Z

A · App: Yes
B · Built By: xAI
C · CEO & Politics: Elon Musk — Right / Republican; largest individual donor of 2024 cycle; revived America PAC with $100M+ for GOP in 2026 midterms (America Party plan shelved)
D · Date: 2025
E · Expertise: Beginner (app available)
F · Free Tier: Yes
G · Generates: Images, Video
H · Deployment: Cloud only (proprietary)
I · Inputs: Text+Image+Audio
J · Jurisdiction: USA
K · Key Staffers: Part of SpaceX (Elon Musk, CEO); Gwynne Shotwell (SpaceX President)
L · Languages: English-primary
M · Model Type: Multimodal LLM
N · Safety Issues: None reported
O · Open Source: Proprietary
P · Pricing: Retired (xAI API retired grok-4-0709 on May 15, 2026; requests now go to Grok 4.3)
Q · AIDb Rating: 7/10 · AIDb v2.0 (curated): Capability 7/10 · Currency 5/10 · Access 7/10 · Significance 7/10 → 6.60
R · What Makes It Special: Grok 4 (July 9, 2025), which xAI called the most intelligent model in the world: trained with RL at pretraining scale on the 200,000-GPU Colossus cluster, with native tool use, real-time search across X and the web, and a 256K-token API context with image input. It set a closed-model record of 15.9% on ARC-AGI-2, and Grok 4 Heavy, using parallel test-time compute for the new SuperGrok Heavy tier, scored 50.7% on Humanity's Last Exam (text-only). Its API was retired May 15, 2026.
S · Stock / Status: Public via SpaceX (Nasdaq: SPCX, IPO Jun 12, 2026); $145 (SPCX, Sep 28, 2026)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: Yes
W · Weights: API only
X · X Handle: @SpaceXSI
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Proprietary Multimodal LLM from xAI, released 2025.

Data completeness 88% · Last verified 2026-08-09 · Primary source ↗

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“Grok 4.” AIDb — The AI Database. Verified 2026-08-09. https://theaidatabase.com/m/grok-4-xai.html

Grok 4

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