What is the difference between Claude Sonnet 5 and Qwen Plus 0728 (thinking)?

Claude Sonnet 5 is developed by Anthropic while Qwen Plus 0728 (thinking) is developed by Qwen. Claude Sonnet 5 has a 1.0M token context window vs Qwen Plus 0728 (thinking)'s 1.0M. You can compare their actual outputs across 37 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or Qwen Plus 0728 (thinking)?

It depends on your use case. Claude Sonnet 5 and Qwen Plus 0728 (thinking) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 37 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 5 cost compared to Qwen Plus 0728 (thinking)?

Claude Sonnet 5 costs $2/M input tokens and Qwen Plus 0728 (thinking) costs $0.4/M input tokens. Qwen Plus 0728 (thinking) is $1.60/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 5 and Qwen Plus 0728 (thinking) on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 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 Jun 2026

Claude Sonnet 5vsQwen Plus 0728 (thinking)

Qwen Plus 0728 (thinking) is cheaper than Claude Sonnet 5 at $0.4/M vs $2/M input tokens.

Claude Sonnet 5 and Qwen Plus 0728 (thinking) compared across 37 shared prompts
Spec	Claude Sonnet 5	Qwen Plus 0728 (thinking)
Input price	$2/M tokens	$0.4/M tokens
Output price	$10/M tokens	$4/M tokens
Context window	1.0M tokens	1.0M tokens
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	Jun 2026	Sep 2025