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Grok 4.20

Multimodal
xAI

Grok 4.20 is xAI's latest model with reasoning and a record-breaking 2M token context window. High generation speed at top-tier intelligence level.

Key Specifications

Parameters
-
Context
-
Release Date
March 9, 2026
Average Score
-

Timeline

Key dates in the model's history
Announcement
March 9, 2026
Last Update
March 21, 2026
Today
September 10, 2026

Technical Specifications

Parameters
-
Training Tokens
-
Knowledge Cutoff
-
Family
-
Capabilities
MultimodalZeroEval

Benchmark Results

Model performance metrics across various tests and benchmarks

License & Metadata

License
proprietary
Announcement Date
March 9, 2026
Last Updated
March 21, 2026

Articles about Grok 4.20

Every Frontier AI Model Scored Under 1% on ARC-AGI-3. Humans Got 100%.

Every Frontier AI Model Scored Under 1% on ARC-AGI-3. Humans Got 100%.

Chollet's new benchmark drops the same week Jensen Huang declared AGI. GPT-5.4 scored 0.26%. Claude Opus 4.6 scored 0.25%. The gap with humans is 99+ points.

9 min

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