Grok-4 Heavy vs Llama 4 Maverick
Grok-4 Heavy leads the LLM Stats Score 40.9 to 14.8.
xAI · Meta · Updated for 2026
Which is better?
Grok-4 Heavy leads the overall LLM Stats Score 40.9 to 14.8, ranking #50 overall.
In the 2 individual benchmarks reported for both models, Grok-4 Heavy wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-4 Heavy
- overall performance matters — it scores 40.9 and ranks #50 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
Choose Llama 4 Maverick
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
6 reported for Grok-4 Heavy · 13 for Llama 4 Maverick
Grok-4 Heavy outperforms in 2 benchmarks (GPQA, LiveCodeBench), while Llama 4 Maverick is better at 0 benchmarks.
Grok-4 Heavy significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Llama 4 Maverick specifies input context (1,000,000 tokens). Only Llama 4 Maverick specifies output context (1,000,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok-4 Heavy and Llama 4 Maverick support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Heavy
Llama 4 Maverick
License
Usage and distribution terms
Grok-4 Heavy is licensed under a proprietary license, while Llama 4 Maverick uses Llama 4 Community License Agreement.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Llama 4 Community License Agreement
Open weights
Release Timeline
When each model was launched
Llama 4 Maverick was released on 2025-04-05, while Grok-4 Heavy's release date is not specified.
We can confirm Llama 4 Maverick's release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.
—
Apr 5, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Grok-4 Heavy has a documented knowledge cutoff of 2024-12-31, while Llama 4 Maverick's cutoff date is not specified.
We can confirm Grok-4 Heavy's training data extends to 2024-12-31, but cannot make a direct comparison without Llama 4 Maverick's cutoff date.
Dec 2024
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Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Heavy and Llama 4 Maverick side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Heavy vs Llama 4 Maverick.