What is the difference between Claude 3 Opus and Qwen3.5 9B?

Claude 3 Opus is developed by Anthropic while Qwen3.5 9B is developed by Qwen. Claude 3 Opus has a 200K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Qwen3.5 9B?

It depends on your use case. Claude 3 Opus and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Qwen3.5 9B?

Claude 3 Opus costs $15/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $14.90/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 3 Opus and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Qwen3.5 9B 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.

What is the difference between Claude 3 Opus and Qwen3.5 9B?

Claude 3 Opus is developed by Anthropic while Qwen3.5 9B is developed by Qwen. Claude 3 Opus has a 200K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Qwen3.5 9B?

It depends on your use case. Claude 3 Opus and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Qwen3.5 9B?

Claude 3 Opus costs $15/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $14.90/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 3 Opus and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Qwen3.5 9B 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.

Claude 3 Opus vs Qwen3.5 9B: Which Is Better?

Updated Mar 2026

Our Verdict

Claude 3 Opus

Qwen3.5 9BRunner-up

No community votes yet. On paper, Claude 3 Opus 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

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

Qwen3.5 9B

Input

$0.10

150× cheaper

Output

$0.15

500× cheaper

Qwen3.5 9B is cheaper on both — 150× input, 500× output

Writing DNA

Style Comparison

Similarity

51%

Qwen3.5 9B uses 688.4x more bold

Claude 3 Opus

Qwen3.5 9B

54%Vocabulary47%

14wSentence Length15w

0.48Hedging0.41

0.0Bold6.9

3.0Lists4.8

0.00Emoji0.00

0.00Headings0.91

0.06Transitions0.12

Based on 3 + 21 text responses

Research

What we learned reading every model

Claude 3 Opus and Qwen3.5 9B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen3.5 9B vs GPT-4o (Omni)New provider

Qwen3.5 9B vs Llama 4 MaverickNew provider

Claude 3 Opus vs MiniMax M3New provider

Updated Mar 2026

Our Verdict

Claude 3 Opus

Qwen3.5 9BRunner-up

No community votes yet. On paper, Claude 3 Opus 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

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

Qwen3.5 9B

Input

$0.10

150× cheaper

Output

$0.15

500× cheaper

Qwen3.5 9B is cheaper on both — 150× input, 500× output

Writing DNA

Style Comparison

Similarity

51%

Qwen3.5 9B uses 688.4x more bold

Claude 3 Opus

Qwen3.5 9B

54%Vocabulary47%

14wSentence Length15w

0.48Hedging0.41

0.0Bold6.9

3.0Lists4.8

0.00Emoji0.00

0.00Headings0.91

0.06Transitions0.12

Based on 3 + 21 text responses

Research

What we learned reading every model

Claude 3 Opus and Qwen3.5 9B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Qwen3.5 9B vs GPT-4o (Omni)New provider

Qwen3.5 9B vs Llama 4 MaverickNew provider

Claude 3 Opus vs MiniMax M3New provider