Grok 4 Heavy
grok-4-heavy
Last refreshed 2026-05-20. Next refresh: weekly.
Grok 4 Heavy has model metadata, but missing tracked provider pricing keeps it from being a default production pick.
Decision context: Coding task fit, 0 tracked provider routes, and research from 2026-05-20.
Use it for
- Teams evaluating coding, long context, and vision
- Workloads that can use a 256k context window
Do not use it for
- Cost-sensitive launches that need sourced token pricing
- Strict JSON or tool-calling flows
- Teams that need a tracked hosted API route today
Cheapest output
-
No tracked output price
Provider routes
0
No provider route in seed
Quality / dollar
Unknown
No output-token price in the ladder
Freshness
2026-05-20
Researched 1d ago
Top use-case fit
Coding
1 relevant benchmark in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Vision
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Benchmark peer barsfor Coding
Migration checks
No linked migration route is available for this model yet.
About
Grok 4 Heavy is xAI's Grok 4 model with multimodal text and image input. It offers a 256K-token context window.
Grok 4 Heavy has a 256K-token context window.
Capabilities
Benchmark Scores(1)
| Benchmark | Score | Version | Source |
|---|---|---|---|
| SWE-bench Pro | 39.8 | — | DAT-1778 |
