Kimi K2-Instruct-0905 vs Qwen3.8 Max
Qwen3.8 Max significantly outperforms across most benchmarks.
Moonshot AI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Kimi K2-Instruct-0905 outperforms in 0 benchmarks, while Qwen3.8 Max is better at 2 benchmarks (GPQA, Humanity's Last Exam). Qwen3.8 Max significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Kimi K2-Instruct-0905
- you are already invested in the Moonshot AI ecosystem
Choose Qwen3.8 Max
- you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
- you want the most recent training data — it shipped Aug 2026
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K2-Instruct-0905 outperforms in 0 benchmarks, while Qwen3.8 Max is better at 2 benchmarks (GPQA, Humanity's Last Exam).
Qwen3.8 Max significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Model Size
Parameter count comparison
Qwen3.8 Max has 1400.0B more parameters than Kimi K2-Instruct-0905, making it 140.0% larger.
Input Capabilities
Supported data types and modalities
Qwen3.8 Max supports multimodal inputs, whereas Kimi K2-Instruct-0905 does not.
Qwen3.8 Max can handle both text and other forms of data like images, making it suitable for multimodal applications.
Kimi K2-Instruct-0905
Qwen3.8 Max
License
Usage and distribution terms
Kimi K2-Instruct-0905 is licensed under MIT, while Qwen3.8 Max uses Qwen3.8-Max License.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Qwen3.8-Max License
Open weights
Release Timeline
When each model was launched
Kimi K2-Instruct-0905 was released on 2025-09-05, while Qwen3.8 Max was released on 2026-08-02.
Qwen3.8 Max is 11 months newer than Kimi K2-Instruct-0905.
Sep 5, 2025
11 months ago
Aug 2, 2026
3 weeks ago
11mo 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 Kimi K2-Instruct-0905 and Qwen3.8 Max side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K2-Instruct-0905 vs Qwen3.8 Max.