What is the difference between DeepSeek R1 and Qwen3.5 9B?

DeepSeek R1 is developed by DeepSeek while Qwen3.5 9B is developed by Qwen. DeepSeek R1 has a 128K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 or Qwen3.5 9B?

It depends on your use case. DeepSeek R1 and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does DeepSeek R1 cost compared to Qwen3.5 9B?

DeepSeek R1 costs $0.55/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $0.45/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 DeepSeek R1 and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of DeepSeek R1 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 DeepSeek R1 and Qwen3.5 9B?

DeepSeek R1 is developed by DeepSeek while Qwen3.5 9B is developed by Qwen. DeepSeek R1 has a 128K token context window vs Qwen3.5 9B's 262K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 or Qwen3.5 9B?

It depends on your use case. DeepSeek R1 and Qwen3.5 9B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does DeepSeek R1 cost compared to Qwen3.5 9B?

DeepSeek R1 costs $0.55/M input tokens and Qwen3.5 9B costs $0.1/M input tokens. Qwen3.5 9B is $0.45/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 DeepSeek R1 and Qwen3.5 9B on Rival?

This page shows a side-by-side comparison of DeepSeek R1 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.

DeepSeek R1 vs Qwen3.5 9B: Which Is Better?

Updated Mar 2026

Our Verdict

DeepSeek R1

Qwen3.5 9B

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Qwen3.5 9B is 15x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

DeepSeek R1

Input

$0.55

Output

$2.19

Qwen3.5 9B

Input

$0.10

5.5× cheaper

Output

$0.15

15× cheaper

Qwen3.5 9B is cheaper on both — 5.5× input, 15× output

Writing DNA

Style Comparison

Similarity

44%

DeepSeek R1 uses 4.3x more emoji

DeepSeek R1

Qwen3.5 9B

62%Vocabulary47%

15wSentence Length15w

0.52Hedging0.41

8.0Bold6.9

5.7Lists4.8

0.04Emoji0.00

0.62Headings0.91

0.28Transitions0.12

Based on 22 + 21 text responses

Research

What we learned reading every model

DeepSeek R1 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 MiniMax M3New provider

Qwen3.5 9B vs GPT-4.1 NanoNew provider

Qwen3.5 9B vs Claude Sonnet 4New provider

Updated Mar 2026

Our Verdict

DeepSeek R1

Qwen3.5 9B

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Qwen3.5 9B is 15x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

DeepSeek R1

Input

$0.55

Output

$2.19

Qwen3.5 9B

Input

$0.10

5.5× cheaper

Output

$0.15

15× cheaper

Qwen3.5 9B is cheaper on both — 5.5× input, 15× output

Writing DNA

Style Comparison

Similarity

44%

DeepSeek R1 uses 4.3x more emoji

DeepSeek R1

Qwen3.5 9B

62%Vocabulary47%

15wSentence Length15w

0.52Hedging0.41

8.0Bold6.9

5.7Lists4.8

0.04Emoji0.00

0.62Headings0.91

0.28Transitions0.12

Based on 22 + 21 text responses

Research

What we learned reading every model

DeepSeek R1 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 MiniMax M3New provider

Qwen3.5 9B vs GPT-4.1 NanoNew provider

Qwen3.5 9B vs Claude Sonnet 4New provider