What is the difference between Claude Sonnet 4 and Qwen Plus 0728?

Claude Sonnet 4 is developed by Anthropic while Qwen Plus 0728 is developed by Qwen. Claude Sonnet 4 has a 200K token context window vs Qwen Plus 0728's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 4 or Qwen Plus 0728?

It depends on your use case. Claude Sonnet 4 and Qwen Plus 0728 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 4 cost compared to Qwen Plus 0728?

Claude Sonnet 4 costs $3/M input tokens and Qwen Plus 0728 costs $0.4/M input tokens. Qwen Plus 0728 is $2.60/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 Sonnet 4 and Qwen Plus 0728 on Rival?

This page shows a side-by-side comparison of Claude Sonnet 4 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 Sonnet 4vsQwen Plus 0728

Qwen Plus 0728 is cheaper than Claude Sonnet 4 at $0.4/M vs $3/M input tokens.

Claude Sonnet 4 and Qwen Plus 0728 compared across 54 shared prompts
Spec	Claude Sonnet 4	Qwen Plus 0728
Input price	$3/M tokens	$0.4/M tokens
Output price	$15/M tokens	$1.2/M tokens
Context window	200K tokens	1.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	May 2025	Sep 2025