What is the difference between Kimi K2.5 and Qwen3.5 397B A17B?

Kimi K2.5 is developed by Moonshot AI while Qwen3.5 397B A17B is developed by Qwen. Kimi K2.5 has a 262K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Kimi K2.5 or Qwen3.5 397B A17B?

It depends on your use case. Kimi K2.5 and Qwen3.5 397B A17B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Kimi K2.5 cost compared to Qwen3.5 397B A17B?

Kimi K2.5 costs $0.6/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Kimi K2.5 and Qwen3.5 397B A17B on Rival?

This page shows a side-by-side comparison of Kimi K2.5 and Qwen3.5 397B A17B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Feb 2026

Kimi K2.5vsQwen3.5 397B A17B

Qwen3.5 397B A17B is the newer model, released after Kimi K2.5.

Kimi K2.5 and Qwen3.5 397B A17B compared across 53 shared prompts
Spec	Kimi K2.5	Qwen3.5 397B A17B
Input price	$0.6/M tokens	$0.6/M tokens
Output price	$3/M tokens	$3.6/M tokens
Context window	262K tokens	262K tokens
Weights	Open	Open
Free API (OpenRouter)	No	No
Released	Jan 2026	Feb 2026
SWE-bench Verified	76.8%	76.4%