Comprehensive side-by-side LLM comparison
Grok-4 Heavy leads with 31.7% higher average benchmark score. Grok-4 Heavy supports multimodal inputs. Overall, Grok-4 Heavy is the stronger choice for coding tasks.
xAI
Grok 4 Heavy was created as a larger, more capable variant of Grok 4, designed to provide maximum reasoning depth and analytical capability. Built for the most demanding applications requiring sophisticated problem-solving, it represents xAI's flagship offering in the fourth generation.
NVIDIA
Llama 3.3 Nemotron Super 49B was created through NVIDIA's optimization of Llama 3.3, designed to provide a balanced option with 49 billion parameters. Built to serve as a versatile mid-to-large-scale offering, it combines NVIDIA's customization expertise with Meta's foundation architecture.
3 months newer

Llama-3.3 Nemotron Super 49B v1
NVIDIA
2025-03-18

Grok-4 Heavy
xAI
2025-07-09
Average performance across 2 common benchmarks

Grok-4 Heavy

Llama-3.3 Nemotron Super 49B v1
Llama-3.3 Nemotron Super 49B v1
2023-12-31
Grok-4 Heavy
2024-12-31
Available providers and their performance metrics

Grok-4 Heavy

Llama-3.3 Nemotron Super 49B v1

Grok-4 Heavy

Llama-3.3 Nemotron Super 49B v1