Grok-1.5 vs Pixtral-12B
Grok-1.5 and Pixtral-12B are closely matched at -2.6 and -1.6 on the LLM Stats Score.
xAI · Mistral AI · Updated for 2026
Which is better?
Grok-1.5 and Pixtral-12B are closely matched on the overall LLM Stats Score at -2.6 and -1.6.
In the 6 individual benchmarks reported for both models, Grok-1.5 wins 4; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-1.5
- you value its reported benchmark strengths — it wins 4 of 6 exact shared results
Choose Pixtral-12B
- you want the most recent training data — it shipped Sep 2024
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for Grok-1.5 · 12 for Pixtral-12B
Grok-1.5 outperforms in 4 benchmarks (HumanEval, MATH, MMLU, MMMU), while Pixtral-12B is better at 2 benchmarks (DocVQA, MathVista).
Grok-1.5 shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Pixtral-12B specifies input context (128,000 tokens). Only Pixtral-12B specifies output context (8,192 tokens).
Input capabilities
Documented input modalities across available providers
Pixtral-12B supports multimodal inputs, whereas Grok-1.5 does not.
Pixtral-12B can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Pixtral-12B
License
Usage and distribution terms
Grok-1.5 is licensed under a proprietary license, while Pixtral-12B 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 Pixtral-12B was released on 2024-09-17.
Pixtral-12B is 6 months newer than Grok-1.5.
Mar 28, 2024
2.5 years ago
Sep 17, 2024
2.0 years ago
5mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-1.5 and Pixtral-12B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5 vs Pixtral-12B.