Model Comparison
Grok-1.5 vs Grok-3
Grok-3 significantly outperforms across most benchmarks.
Performance Benchmarks
Comparative analysis across standard metrics
Grok-1.5 outperforms in 0 benchmarks, while Grok-3 is better at 2 benchmarks (GPQA, MMMU).
Grok-3 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only Grok-3 specifies input context (128,000 tokens). Only Grok-3 specifies output context (8,000 tokens).
Input Capabilities
Supported data types and modalities
Grok-3 supports multimodal inputs, whereas Grok-1.5 does not.
Grok-3 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Grok-3
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-1.5 was released on 2024-03-28, while Grok-3 was released on 2025-02-17.
Grok-3 is 11 months newer than Grok-1.5.
Mar 28, 2024
2.1 years ago
Feb 17, 2025
1.2 years ago
10mo newerKnowledge Cutoff
When training data ends
Grok-3 has a documented knowledge cutoff of 2024-11-17, while Grok-1.5's cutoff date is not specified.
We can confirm Grok-3's training data extends to 2024-11-17, but cannot make a direct comparison without Grok-1.5's cutoff date.
—
Nov 2024
Outputs Comparison
Key Takeaways
No standout differentiators in the data we have for this pair.
Grok-1.5Grok-3Detailed Comparison
FAQ
Common questions about Grok-1.5 vs Grok-3.