Model Comparison
Grok-2 Image 1212 vs Grok-4 HeavyWhich is better in 2026?
Comparing Grok-2 Image 1212 and Grok-4 Heavy across benchmarks, pricing, and capabilities.
Verdict: Grok-2 Image 1212 vs Grok-4 Heavy — which is better?
Grok-2 Image 1212 (by xAI) and Grok-4 Heavy (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
Choose Grok-2 Image 1212 if…
- you are already invested in the xAI ecosystem
Choose Grok-4 Heavy if…
- you are already invested in the xAI ecosystem
Performance Benchmarks
Comparative analysis across standard metrics
Grok-2 Image 1212 and Grok-4 Heavydon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only Grok-2 Image 1212 specifies input context (131,072 tokens).
Input Capabilities
Supported data types and modalities
Grok-4 Heavy supports multimodal inputs, whereas Grok-2 Image 1212 does not.
Grok-4 Heavy can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-2 Image 1212
Grok-4 Heavy
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Grok-2 Image 1212 was released on 2024-12-12, while Grok-4 Heavy's release date is not specified.
We can confirm Grok-2 Image 1212's release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.
Dec 12, 2024
1.7 years ago
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Knowledge Cutoff
When training data ends
Grok-4 Heavy has a documented knowledge cutoff of 2024-12-31, while Grok-2 Image 1212'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 Grok-2 Image 1212's cutoff date.
—
Dec 2024
Outputs Comparison
Key Takeaways
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Grok-2 Image 1212 and Grok-4 Heavy side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Grok-2 Image 1212 vs Grok-4 Heavy.