What is the difference between Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15?

Claude 3.7 Sonnet is developed by Anthropic while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Claude 3.7 Sonnet has a 200K 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, Claude 3.7 Sonnet or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Claude 3.7 Sonnet 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 Claude 3.7 Sonnet cost compared to Qwen3.5 Plus 2026-02-15?

Claude 3.7 Sonnet costs $3/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen3.5 Plus 2026-02-15 is $2.60/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 Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet 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.

What is the difference between Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15?

Claude 3.7 Sonnet is developed by Anthropic while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Claude 3.7 Sonnet has a 200K 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, Claude 3.7 Sonnet or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Claude 3.7 Sonnet 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 Claude 3.7 Sonnet cost compared to Qwen3.5 Plus 2026-02-15?

Claude 3.7 Sonnet costs $3/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen3.5 Plus 2026-02-15 is $2.60/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 Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet 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

Claude 3.7 SonnetvsQwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 is cheaper than Claude 3.7 Sonnet at $0.4/M vs $3/M input tokens.

Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 compared across 53 shared prompts
Spec	Claude 3.7 Sonnet	Qwen3.5 Plus 2026-02-15
Input price	$3/M tokens	$0.4/M tokens
Output price	$15/M tokens	$2.4/M tokens
Context window	200K tokens	1.0M tokens
Released	Feb 2025	Feb 2026
GPQA Diamond	68.0%	88.4%

Our Verdict

Qwen3.5 Plus 2026-02-15

Claude 3.7 SonnetRunner-up

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer, bigger context window.

Qwen3.5 Plus 2026-02-15 costs 6.3x less per token.

Too close to call

What do Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Qwen3.5 Plus 2026-02-15

Input

$0.40

7.5× cheaper

Output

$2.40

6.3× cheaper

Qwen3.5 Plus 2026-02-15 is cheaper on both — 7.5× input, 6.3× output

Writing DNA

Style Comparison

Similarity

56%

Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji

Claude 3.7 Sonnet

Qwen3.5 Plus 2026-02-15

62%Vocabulary54%

35wSentence Length18w

0.99Hedging0.51

1.2Bold5.3

4.3Lists2.9

0.00Emoji0.10

1.78Headings0.75

0.23Transitions0.09

Based on 13 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 3.7 Sonnet vs Ox AlphaNew provider

Claude 3.7 Sonnet vs MiniMax M3New provider

Claude 3.7 Sonnet vs GPT-5New provider

Claude 3.7 Sonnet vs Llama 4 MaverickNew provider

Claude 3.7 Sonnet vs Hunter AlphaNew provider

Claude 3.7 Sonnet vs InklingNew provider

Claude 3.7 Sonnet vs INTELLECT-3New provider

Claude 3.7 Sonnet vs Kimi K2New provider

Updated Feb 2026

Claude 3.7 SonnetvsQwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 is cheaper than Claude 3.7 Sonnet at $0.4/M vs $3/M input tokens.

Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 compared across 53 shared prompts
Spec	Claude 3.7 Sonnet	Qwen3.5 Plus 2026-02-15
Input price	$3/M tokens	$0.4/M tokens
Output price	$15/M tokens	$2.4/M tokens
Context window	200K tokens	1.0M tokens
Released	Feb 2025	Feb 2026
GPQA Diamond	68.0%	88.4%

Our Verdict

Qwen3.5 Plus 2026-02-15

Claude 3.7 SonnetRunner-up

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer, bigger context window.

Qwen3.5 Plus 2026-02-15 costs 6.3x less per token.

Too close to call

What do Claude 3.7 Sonnet and Qwen3.5 Plus 2026-02-15 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Qwen3.5 Plus 2026-02-15

Input

$0.40

7.5× cheaper

Output

$2.40

6.3× cheaper

Qwen3.5 Plus 2026-02-15 is cheaper on both — 7.5× input, 6.3× output

Writing DNA

Style Comparison

Similarity

56%

Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji

Claude 3.7 Sonnet

Qwen3.5 Plus 2026-02-15

62%Vocabulary54%

35wSentence Length18w

0.99Hedging0.51

1.2Bold5.3

4.3Lists2.9

0.00Emoji0.10

1.78Headings0.75

0.23Transitions0.09

Based on 13 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Claude 3.7 Sonnet vs Ox AlphaNew provider

Claude 3.7 Sonnet vs MiniMax M3New provider

Claude 3.7 Sonnet vs GPT-5New provider

Claude 3.7 Sonnet vs Llama 4 MaverickNew provider

Claude 3.7 Sonnet vs Hunter AlphaNew provider

Claude 3.7 Sonnet vs InklingNew provider

Claude 3.7 Sonnet vs INTELLECT-3New provider

Claude 3.7 Sonnet vs Kimi K2New provider