Grok-1.5 vs Qwen3.5-2B
Qwen3.5-2B leads the LLM Stats Score 3.8 to -2.6.
xAI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Qwen3.5-2B leads the overall LLM Stats Score 3.8 to -2.6, ranking #304 overall.
In the 2 individual benchmarks reported for both models, Qwen3.5-2B wins 2; 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 are already invested in the xAI ecosystem
Choose Qwen3.5-2B
- overall performance matters — it scores 3.8 and ranks #304 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- you want the most recent training data — it shipped Mar 2026
- 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 · 20 for Qwen3.5-2B
Grok-1.5 outperforms in 0 benchmarks, while Qwen3.5-2B is better at 2 benchmarks (GPQA, MMLU-Pro).
Qwen3.5-2B significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Input capabilities
Documented input modalities across available providers
Qwen3.5-2B supports multimodal inputs, whereas Grok-1.5 does not.
Qwen3.5-2B can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Qwen3.5-2B
License
Usage and distribution terms
Grok-1.5 is licensed under a proprietary license, while Qwen3.5-2B 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 Qwen3.5-2B was released on 2026-03-02.
Qwen3.5-2B is 23 months newer than Grok-1.5.
Mar 28, 2024
2.5 years ago
Mar 2, 2026
6 months ago
1.9yr 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 Qwen3.5-2B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5 vs Qwen3.5-2B.