xAI
Grok 4 Heavy
A powerful model from xAI with native tool use and real-time search integration.
Our editorial assessment as of Apr 24, 2026, based on the public sources listed below.
Overall rank
#10
Tier
S
Score
89.0
Main category
Overall
Strengths
- Integrates real-time search capabilities directly into the model.
- Features native tool use for more complex tasks.
- Available to subscribers and via the xAI API.
Considerations
- Access is limited to specific subscription tiers (SuperGrok Heavy).
- A multi-agent version (Grok 4.20) is still in training, suggesting the architecture is evolving.
Price
Available via SuperGrok and Premium+ subscription
Score breakdown
Performance
—
Reputation
—
Price
40.0
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
- xAI News - Announcing Grok 4Accessed: 2026-04-21
- LinkedIn - Best AI Models April 2026Accessed: 2026-04-21