Grok-1.5 vs Magistral Medium
Magistral Medium significantly outperforms across most benchmarks.
xAI · Mistral AI · Updated for 2026
Which is better?
Grok-1.5 outperforms in 0 benchmarks, while Magistral Medium is better at 1 benchmark (GPQA). Magistral Medium significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Grok-1.5
- you are already invested in the xAI ecosystem
Choose Magistral Medium
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Jun 2025
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Grok-1.5 outperforms in 0 benchmarks, while Magistral Medium is better at 1 benchmark (GPQA).
Magistral Medium significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Input Capabilities
Supported data types and modalities
Magistral Medium supports multimodal inputs, whereas Grok-1.5 does not.
Magistral Medium can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Magistral Medium
License
Usage and distribution terms
Grok-1.5 is licensed under a proprietary license, while Magistral Medium uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Grok-1.5 was released on 2024-03-28, while Magistral Medium was released on 2025-06-10.
Magistral Medium is 15 months newer than Grok-1.5.
Mar 28, 2024
2.4 years ago
Jun 10, 2025
1.2 years ago
1.2yr newerKnowledge Cutoff
When training data ends
Magistral Medium has a documented knowledge cutoff of 2025-06-01, while Grok-1.5's cutoff date is not specified.
We can confirm Magistral Medium's training data extends to 2025-06-01, but cannot make a direct comparison without Grok-1.5's cutoff date.
—
Jun 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-1.5 and Magistral Medium side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5 vs Magistral Medium.