What is the difference between Qwen Plus 0728 and Seed 2.1 Turbo?

Qwen Plus 0728 is developed by Qwen while Seed 2.1 Turbo is developed by ByteDance. Qwen Plus 0728 has a 1.0M token context window vs Seed 2.1 Turbo's 262K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Qwen Plus 0728 or Seed 2.1 Turbo?

It depends on your use case. Qwen Plus 0728 and Seed 2.1 Turbo 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 Qwen Plus 0728 cost compared to Seed 2.1 Turbo?

Qwen Plus 0728 costs $0.4/M input tokens and Seed 2.1 Turbo costs $0.5/M input tokens. Qwen Plus 0728 is $0.10/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 Qwen Plus 0728 and Seed 2.1 Turbo on Rival?

This page shows a side-by-side comparison of Qwen Plus 0728 and Seed 2.1 Turbo 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 Aug 2026

Qwen Plus 0728vsSeed 2.1 Turbo

Qwen Plus 0728 is cheaper than Seed 2.1 Turbo at $0.4/M vs $0.5/M input tokens.

Qwen Plus 0728 and Seed 2.1 Turbo compared across 54 shared prompts
Spec	Qwen Plus 0728	Seed 2.1 Turbo
Input price	$0.4/M tokens	$0.5/M tokens
Output price	$1.2/M tokens	$2.5/M tokens
Context window	1.0M tokens	262K tokens
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	Sep 2025	Aug 2026