Grok-4 Heavy vs Mistral Small 3.1 24B Base
Grok-4 Heavy significantly outperforms across most benchmarks.
xAI · Mistral AI · Updated for 2026
Which is better?
Grok-4 Heavy outperforms in 1 benchmarks (GPQA), while Mistral Small 3.1 24B Base is better at 0 benchmarks. Grok-4 Heavy significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Grok-4 Heavy
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
Choose Mistral Small 3.1 24B Base
- 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-4 Heavy outperforms in 1 benchmarks (GPQA), while Mistral Small 3.1 24B Base is better at 0 benchmarks.
Grok-4 Heavy significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Context Window
Maximum input and output token capacity
Only Mistral Small 3.1 24B Base specifies input context (128,000 tokens). Only Mistral Small 3.1 24B Base specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
Both Grok-4 Heavy and Mistral Small 3.1 24B Base support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Heavy
Mistral Small 3.1 24B Base
License
Usage and distribution terms
Grok-4 Heavy is licensed under a proprietary license, while Mistral Small 3.1 24B Base 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
Mistral Small 3.1 24B Base was released on 2025-03-17, while Grok-4 Heavy's release date is not specified.
We can confirm Mistral Small 3.1 24B Base's release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.
—
Mar 17, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Grok-4 Heavy has a documented knowledge cutoff of 2024-12-31, while Mistral Small 3.1 24B Base'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 Mistral Small 3.1 24B Base's cutoff date.
Dec 2024
—
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Heavy and Mistral Small 3.1 24B Base side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Heavy vs Mistral Small 3.1 24B Base.