Model Comparison
Phi 4 Reasoning Plus vs Qwen3.8 MaxWhich is better in 2026?
Qwen3.8 Max significantly outperforms across most benchmarks.
Verdict: Phi 4 Reasoning Plus vs Qwen3.8 Max — which is better?
Phi 4 Reasoning Plus (by Microsoft) and Qwen3.8 Max (by Alibaba Cloud / Qwen Team) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
Phi 4 Reasoning Plus outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (GPQA). Qwen3.8 Max significantly outperforms across most benchmarks.
Choose Phi 4 Reasoning Plus if…
- you need open weights you can self-host or fine-tune
Choose Qwen3.8 Max if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Aug 2026
Performance Benchmarks
Comparative analysis across standard metrics
Phi 4 Reasoning Plus outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (GPQA).
Qwen3.8 Max significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Model Size
Parameter count comparison
Qwen3.8 Max has 2386.0B more parameters than Phi 4 Reasoning Plus, making it 17042.9% larger.
Input Capabilities
Supported data types and modalities
Qwen3.8 Max supports multimodal inputs, whereas Phi 4 Reasoning Plus does not.
Qwen3.8 Max can handle both text and other forms of data like images, making it suitable for multimodal applications.
Phi 4 Reasoning Plus
Qwen3.8 Max
License
Usage and distribution terms
Phi 4 Reasoning Plus is licensed under MIT, while Qwen3.8 Max uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Phi 4 Reasoning Plus was released on 2025-04-30, while Qwen3.8 Max was released on 2026-08-02.
Qwen3.8 Max is 15 months newer than Phi 4 Reasoning Plus.
Apr 30, 2025
1.3 years ago
Aug 2, 2026
2 days ago
1.3yr newerKnowledge Cutoff
When training data ends
Phi 4 Reasoning Plus has a documented knowledge cutoff of 2025-03-01, while Qwen3.8 Max's cutoff date is not specified.
We can confirm Phi 4 Reasoning Plus's training data extends to 2025-03-01, but cannot make a direct comparison without Qwen3.8 Max's cutoff date.
Mar 2025
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Outputs Comparison
Key Takeaways
Phi 4 Reasoning Plus
View detailsMicrosoft
Qwen3.8 Max
View detailsAlibaba Cloud / Qwen Team
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Phi 4 Reasoning Plus and Qwen3.8 Max side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Phi 4 Reasoning Plus vs Qwen3.8 Max.