Grok-4 Heavy: Benchmarks, Pricing & Context Window
Grok-4 Heavy is a language model from xAI, released in July 2025, with multimodal input.
Grok 4 Heavy is the multi-agent version of Grok 4, released alongside the standard model in summer 2025. This system spawns multiple Grok 4 agents in parallel that work independently on problems and then collaborate by comparing their
Grok-4 Heavy API
API access coming soon
Grok-4 Heavy will be available through our gateway shortly.
Grok-4 Heavy examples
Recent arena outputs from Grok-4 Heavy, picked from the highest-ranked matchups.
Grok-4 Heavy license
Grok-4 Heavy is released under the Proprietary license, which restricts commercial use, has a knowledge cutoff of December 2024.
- License
- Proprietary
- Non-commercial
- Knowledge cutoff
- December 2024
Proprietary license - usage restrictions apply
FAQ
Common questions about Grok-4 Heavy.