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Qwen3.5 9B vs Claude Opus 4.1

Compare Qwen3.5 9B by Qwen against Claude Opus 4.1 by Anthropic, context windows of 262K vs 200K, tested across 26 shared challenges. Updated March 2026.

Which is better, Qwen3.5 9B or Claude Opus 4.1?

Qwen3.5 9B and Claude Opus 4.1 are both competitive models. Qwen3.5 9B costs $0.1/M input tokens vs $15/M for Claude Opus 4.1. Context windows: 262K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Qwen3.5 9B and Claude Opus 4.1

Qwen3.5 9B is made by qwen while Claude Opus 4.1 is from anthropic. Qwen3.5 9B has a 262K token context window compared to Claude Opus 4.1's 200K. On pricing, Qwen3.5 9B costs $0.1/M input tokens vs $15/M for Claude Opus 4.1.

Our Verdict
Claude Opus 4.1
Claude Opus 4.1
Qwen3.5 9B
Qwen3.5 9BRunner-up

No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, major provider backing.

Qwen3.5 9B is 500x cheaper per token — worth considering if cost matters.

Too close to call
FAQ
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