Model Comparison
DeepSeek-V4-Pro-Max vs Qwen3.8 MaxWhich is better in 2026?
Qwen3.8 Max shows notably better performance in the majority of benchmarks.
Verdict: DeepSeek-V4-Pro-Max vs Qwen3.8 Max — which is better?
DeepSeek-V4-Pro-Max (by DeepSeek) 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.
DeepSeek-V4-Pro-Max outperforms in 1 benchmarks (Humanity's Last Exam), while Qwen3.8 Max is better at 3 benchmarks (FrontierSWE, GPQA, SWE-Bench Pro). Qwen3.8 Max shows notably better performance in the majority of benchmarks.
Choose DeepSeek-V4-Pro-Max 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 3 of 4 shared benchmarks
- you want the most recent training data — it shipped Aug 2026
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V4-Pro-Max outperforms in 1 benchmarks (Humanity's Last Exam), while Qwen3.8 Max is better at 3 benchmarks (FrontierSWE, GPQA, SWE-Bench Pro).
Qwen3.8 Max shows notably better performance in the majority of benchmarks.
Arena Performance
Human preference votes
Model Size
Parameter count comparison
Qwen3.8 Max has 800.0B more parameters than DeepSeek-V4-Pro-Max, making it 50.0% larger.
Context Window
Maximum input and output token capacity
Only DeepSeek-V4-Pro-Max specifies input context (1,048,576 tokens). Only DeepSeek-V4-Pro-Max specifies output context (131,072 tokens).
Input Capabilities
Supported data types and modalities
Qwen3.8 Max supports multimodal inputs, whereas DeepSeek-V4-Pro-Max does not.
Qwen3.8 Max can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V4-Pro-Max
Qwen3.8 Max
License
Usage and distribution terms
DeepSeek-V4-Pro-Max 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
DeepSeek-V4-Pro-Max was released on 2026-04-23, while Qwen3.8 Max was released on 2026-08-02.
Qwen3.8 Max is 3 months newer than DeepSeek-V4-Pro-Max.
Apr 23, 2026
3 months ago
Aug 2, 2026
2 days ago
3mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Key Takeaways
DeepSeek-V4-Pro-Max
View detailsDeepSeek
Qwen3.8 Max
View detailsAlibaba Cloud / Qwen Team
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against DeepSeek-V4-Pro-Max and Qwen3.8 Max side-by-side, then vote on the output you prefer.
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FAQ
Common questions about DeepSeek-V4-Pro-Max vs Qwen3.8 Max.