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Qwen3.5 9B vs Claude Opus 4

Compare Qwen3.5 9B by Qwen against Claude Opus 4 by Anthropic, context windows of 262K vs 200K, tested across 35 shared challenges. Updated March 2026.

Which is better, Qwen3.5 9B or Claude Opus 4?

Qwen3.5 9B and Claude Opus 4 are both competitive models. Qwen3.5 9B costs $0.1/M input tokens vs $15/M for Claude Opus 4. Context windows: 262K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Qwen3.5 9B and Claude Opus 4

Qwen3.5 9B is made by qwen while Claude Opus 4 is from anthropic. Qwen3.5 9B has a 262K token context window compared to Claude Opus 4's 200K. On pricing, Qwen3.5 9B costs $0.1/M input tokens vs $15/M for Claude Opus 4.

Our Verdict
Claude Opus 4
Claude Opus 4
Qwen3.5 9B
Qwen3.5 9BRunner-up

No community votes yet. On paper, Claude Opus 4 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
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