Kimi K2 0905 vs Qwen3.8-27B
Qwen3.8-27B significantly outperforms across most benchmarks.
Moonshot AI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Kimi K2 0905 outperforms in 0 benchmarks, while Qwen3.8-27B is better at 1 benchmark (GPQA). Qwen3.8-27B significantly outperforms across most benchmarks.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Kimi K2 0905
- you want predictable pricing at $0.60/M input and $2.50/M output
Choose Qwen3.8-27B
- 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
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K2 0905 outperforms in 0 benchmarks, while Qwen3.8-27B is better at 1 benchmark (GPQA).
Qwen3.8-27B significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Model Size
Parameter count comparison
Kimi K2 0905 has 972.2B more parameters than Qwen3.8-27B, making it 3499.5% larger.
Context Window
Maximum input and output token capacity
Only Kimi K2 0905 specifies input context (262,144 tokens). Only Kimi K2 0905 specifies output context (262,144 tokens).
Input Capabilities
Supported data types and modalities
Qwen3.8-27B supports multimodal inputs, whereas Kimi K2 0905 does not.
Qwen3.8-27B can handle both text and other forms of data like images, making it suitable for multimodal applications.
Kimi K2 0905
Qwen3.8-27B
License
Usage and distribution terms
Kimi K2 0905 is licensed under a proprietary license, while Qwen3.8-27B 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
Kimi K2 0905 was released on 2025-09-05, while Qwen3.8-27B was released on 2026-08-14.
Qwen3.8-27B is 11 months newer than Kimi K2 0905.
Sep 5, 2025
11 months ago
Aug 14, 2026
1 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 0905 and Qwen3.8-27B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K2 0905 vs Qwen3.8-27B.