Model Comparison
Kimi K3 vs Qwen3.8 MaxWhich is better in 2026?
Kimi K3 shows notably better performance in the majority of benchmarks.
Verdict: Kimi K3 vs Qwen3.8 Max — which is better?
Kimi K3 (by Moonshot AI) 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.
Kimi K3 outperforms in 6 benchmarks (DeepSWE 1.1, FrontierSWE, GPQA, Humanity's Last Exam, MLS-Bench Lite, Terminal-Bench 2.1), while Qwen3.8 Max is better at 2 benchmarks (MMMU-Pro, PerceptionBench). Kimi K3 shows notably better performance in the majority of benchmarks.
Choose Kimi K3 if…
- you want the strongest raw capability — it leads on 6 of 8 shared benchmarks
- you need open weights you can self-host or fine-tune
Choose Qwen3.8 Max if…
- you want the most recent training data — it shipped Aug 2026
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K3 outperforms in 6 benchmarks (DeepSWE 1.1, FrontierSWE, GPQA, Humanity's Last Exam, MLS-Bench Lite, Terminal-Bench 2.1), while Qwen3.8 Max is better at 2 benchmarks (MMMU-Pro, PerceptionBench).
Kimi K3 shows notably better performance in the majority of benchmarks.
Arena Performance
Human preference votes
Model Size
Parameter count comparison
Kimi K3 has 400.0B more parameters than Qwen3.8 Max, making it 16.7% larger.
Context Window
Maximum input and output token capacity
Only Kimi K3 specifies input context (1,048,576 tokens). Only Kimi K3 specifies output context (1,048,576 tokens).
Input Capabilities
Supported data types and modalities
Both Kimi K3 and Qwen3.8 Max support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Kimi K3
Qwen3.8 Max
License
Usage and distribution terms
Kimi K3 is licensed under Kimi K3 License, while Qwen3.8 Max uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Kimi K3 License
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Kimi K3 was released on 2026-07-16, while Qwen3.8 Max was released on 2026-08-02.
Qwen3.8 Max is 1 month newer than Kimi K3.
Jul 16, 2026
2 weeks ago
Aug 2, 2026
1 days ago
2w 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
Kimi K3
View detailsMoonshot AI
Qwen3.8 Max
View detailsAlibaba Cloud / Qwen Team
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Kimi K3 and Qwen3.8 Max side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Kimi K3 vs Qwen3.8 Max.