What is the difference between Qwen3 Coder Plus and Qwen3.5 Plus 2026-02-15?

Both are developed by Qwen but target different use cases. Qwen3 Coder Plus has a 128K token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Qwen3 Coder Plus or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Qwen3 Coder Plus and Qwen3.5 Plus 2026-02-15 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 Qwen3 Coder Plus cost compared to Qwen3.5 Plus 2026-02-15?

Qwen3 Coder Plus costs $1/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen3.5 Plus 2026-02-15 is $0.60/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 Qwen3 Coder Plus and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Qwen3 Coder Plus and Qwen3.5 Plus 2026-02-15 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 Feb 2026

Qwen3 Coder PlusvsQwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 is cheaper than Qwen3 Coder Plus at $0.4/M vs $1/M input tokens.

Qwen3 Coder Plus and Qwen3.5 Plus 2026-02-15 compared across 53 shared prompts
Spec	Qwen3 Coder Plus	Qwen3.5 Plus 2026-02-15
Input price	$1/M tokens	$0.4/M tokens
Output price	$5/M tokens	$2.4/M tokens
Context window	128K tokens	1.0M tokens
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Sep 2025	Feb 2026