What is the difference between GLM 5.1 and Qwen Plus 0728 (thinking)?

GLM 5.1 is developed by Z.ai while Qwen Plus 0728 (thinking) is developed by Qwen. GLM 5.1 has a 203K token context window vs Qwen Plus 0728 (thinking)'s 1.0M. You can compare their actual outputs across 36 challenges on Rival to see how they differ in practice.

Which is better, GLM 5.1 or Qwen Plus 0728 (thinking)?

It depends on your use case. GLM 5.1 and Qwen Plus 0728 (thinking) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 36 challenges so you can judge which fits your needs best.

How much does GLM 5.1 cost compared to Qwen Plus 0728 (thinking)?

GLM 5.1 costs $1.4/M input tokens and Qwen Plus 0728 (thinking) costs $0.4/M input tokens. Qwen Plus 0728 (thinking) is $1.00/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 GLM 5.1 and Qwen Plus 0728 (thinking) on Rival?

This page shows a side-by-side comparison of GLM 5.1 and Qwen Plus 0728 (thinking) 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 Apr 2026

GLM 5.1vsQwen Plus 0728 (thinking)

Qwen Plus 0728 (thinking) is cheaper than GLM 5.1 at $0.4/M vs $1.4/M input tokens.

GLM 5.1 and Qwen Plus 0728 (thinking) compared across 36 shared prompts
Spec	GLM 5.1	Qwen Plus 0728 (thinking)
Input price	$1.4/M tokens	$0.4/M tokens
Output price	$4.4/M tokens	$4/M tokens
Context window	203K tokens	1.0M tokens
Weights	Open	—
Free API (OpenRouter)	No	No
Released	Apr 2026	Sep 2025