What is the difference between Claude Opus 4.1 and Qwen Plus 0728?

Claude Opus 4.1 is developed by Anthropic while Qwen Plus 0728 is developed by Qwen. Claude Opus 4.1 has a 200K token context window vs Qwen Plus 0728's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.1 or Qwen Plus 0728?

It depends on your use case. Claude Opus 4.1 and Qwen Plus 0728 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 Claude Opus 4.1 cost compared to Qwen Plus 0728?

Claude Opus 4.1 costs $15/M input tokens and Qwen Plus 0728 costs $0.4/M input tokens. Qwen Plus 0728 is $14.60/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 Claude Opus 4.1 and Qwen Plus 0728 on Rival?

This page shows a side-by-side comparison of Claude Opus 4.1 and Qwen Plus 0728 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 Sep 2025

Claude Opus 4.1vsQwen Plus 0728

Qwen Plus 0728 is cheaper than Claude Opus 4.1 at $0.4/M vs $15/M input tokens.

Claude Opus 4.1 and Qwen Plus 0728 compared across 53 shared prompts
Spec	Claude Opus 4.1	Qwen Plus 0728
Input price	$15/M tokens	$0.4/M tokens
Output price	$75/M tokens	$1.2/M tokens
Context window	200K tokens	1.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Aug 2025	Sep 2025