xAI
Grok-4.20 Expert Mode
A frontier model from xAI that achieves top-tier benchmark scores in 2026 rankings.
Our editorial assessment as of Jun 4, 2026, based on the public sources listed below.
Overall rank
#1
Tier
S
Score
95.0
Main category
Overall
Strengths
- Tied for the highest score (145) in a 2026 benchmark ranking.
- Considered one of the top-tier models alongside GPT, Claude, and Gemini.
Considerations
- Access is part of a subscription stack that can become expensive when combined with other services.
- Fewer public details on specific features compared to competitors in the provided sources.
Price
Subscription-based
Score breakdown
Performance
—
Reputation
—
Price
60.0
Recency
—
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
Sources
- Visual Capitalist - Smartest AI Models 2026Accessed: 2026-04-30
- Aizolo - Top AI Models March 2026Accessed: 2026-04-30