Grok 3

Grok 3

The world’s smartest AI (according to Elon)

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Grok 3

Launch date
Grok Imagine API
Grok Imagine API SOTA video generation across quality, cost, and latency

Launched on January 30th, 2026

Grok Voice Agent API
Grok Voice Agent API Bringing the power of Grok Voice to all developers

Launched on December 18th, 2025

Grok 4.1
Grok 4.1 A new standard in conversational AI

Launched on November 18th, 2025

Grok 4 Fast
Grok 4 Fast Pushing the frontier of cost-efficient intelligence

Launched on September 21st, 2025

Grok 4
Grok 4 World's most powerful Al model (still, according to Elon)

Launched on July 10th, 2025

Grok 3
Grok 3 "The world’s smartest AI" — Elon Musk

Launched on February 19th, 2025