What is the difference between GPT-5.1 Chat and Qwen3.5 397B A17B?

GPT-5.1 Chat is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. GPT-5.1 Chat has a 128K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Chat or Qwen3.5 397B A17B?

It depends on your use case. GPT-5.1 Chat and Qwen3.5 397B A17B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How much does GPT-5.1 Chat cost compared to Qwen3.5 397B A17B?

GPT-5.1 Chat costs $1.25/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.65/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 GPT-5.1 Chat and Qwen3.5 397B A17B on Rival?

This page shows a side-by-side comparison of GPT-5.1 Chat and Qwen3.5 397B A17B 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 GPT-5.1 Chat and Qwen3.5 397B A17B?

GPT-5.1 Chat is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. GPT-5.1 Chat has a 128K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Chat or Qwen3.5 397B A17B?

It depends on your use case. GPT-5.1 Chat and Qwen3.5 397B A17B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How much does GPT-5.1 Chat cost compared to Qwen3.5 397B A17B?

GPT-5.1 Chat costs $1.25/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.65/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 GPT-5.1 Chat and Qwen3.5 397B A17B on Rival?

This page shows a side-by-side comparison of GPT-5.1 Chat and Qwen3.5 397B A17B 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

GPT-5.1 ChatvsQwen3.5 397B A17B

Qwen3.5 397B A17B is cheaper than GPT-5.1 Chat at $0.6/M vs $1.25/M input tokens.

GPT-5.1 Chat and Qwen3.5 397B A17B compared across 52 shared prompts
Spec	GPT-5.1 Chat	Qwen3.5 397B A17B
Input price	$1.25/M tokens	$0.6/M tokens
Output price	$10/M tokens	$3.6/M tokens
Context window	128K tokens	262K tokens
Released	Nov 2025	Feb 2026
SWE-bench Verified	76.3%	76.4%

Our Verdict

Qwen3.5 397B A17B

GPT-5.1 ChatRunner-up

Not enough votes to call it. On the specs, Qwen3.5 397B A17B has the edge: bigger model tier, newer, bigger context window.

Too close to call

What do GPT-5.1 Chat and Qwen3.5 397B A17B say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Chat

Input

$1.25

Output

$10.00

Qwen3.5 397B A17B

Input

$0.60

2.1× cheaper

Output

$3.60

2.8× cheaper

Qwen3.5 397B A17B is cheaper on both — 2.1× input, 2.8× output

Writing DNA

Style Comparison

Similarity

27%

Qwen3.5 397B A17B uses 22.8x more emoji

GPT-5.1 Chat

Qwen3.5 397B A17B

73%Vocabulary54%

18wSentence Length14w

0.45Hedging0.39

1.1Bold6.9

2.4Lists4.2

0.00Emoji0.23

0.00Headings0.93

0.06Transitions0.17

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Chat vs Ox AlphaNew provider

GPT-5.1 Chat vs MiniMax M3New provider

GPT-5.1 Chat vs Llama 4 MaverickNew provider

GPT-5.1 Chat vs Claude Opus 4New provider

GPT-5.1 Chat vs Qwen3 30B A3BCross-provider

GPT-5.1 Chat vs Qwen3 30B A3B Instruct 2507Cross-provider

GPT-5.1 Chat vs Qwen3 30B A3B Thinking 2507Cross-provider

GPT-5.1 Chat vs Qwen3 CoderCross-provider

Updated Feb 2026

GPT-5.1 ChatvsQwen3.5 397B A17B

Qwen3.5 397B A17B is cheaper than GPT-5.1 Chat at $0.6/M vs $1.25/M input tokens.

GPT-5.1 Chat and Qwen3.5 397B A17B compared across 52 shared prompts
Spec	GPT-5.1 Chat	Qwen3.5 397B A17B
Input price	$1.25/M tokens	$0.6/M tokens
Output price	$10/M tokens	$3.6/M tokens
Context window	128K tokens	262K tokens
Released	Nov 2025	Feb 2026
SWE-bench Verified	76.3%	76.4%

Our Verdict

Qwen3.5 397B A17B

GPT-5.1 ChatRunner-up

Not enough votes to call it. On the specs, Qwen3.5 397B A17B has the edge: bigger model tier, newer, bigger context window.

Too close to call

What do GPT-5.1 Chat and Qwen3.5 397B A17B say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Chat

Input

$1.25

Output

$10.00

Qwen3.5 397B A17B

Input

$0.60

2.1× cheaper

Output

$3.60

2.8× cheaper

Qwen3.5 397B A17B is cheaper on both — 2.1× input, 2.8× output

Writing DNA

Style Comparison

Similarity

27%

Qwen3.5 397B A17B uses 22.8x more emoji

GPT-5.1 Chat

Qwen3.5 397B A17B

73%Vocabulary54%

18wSentence Length14w

0.45Hedging0.39

1.1Bold6.9

2.4Lists4.2

0.00Emoji0.23

0.00Headings0.93

0.06Transitions0.17

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Chat vs Ox AlphaNew provider

GPT-5.1 Chat vs MiniMax M3New provider

GPT-5.1 Chat vs Llama 4 MaverickNew provider

GPT-5.1 Chat vs Claude Opus 4New provider

GPT-5.1 Chat vs Qwen3 30B A3BCross-provider

GPT-5.1 Chat vs Qwen3 30B A3B Instruct 2507Cross-provider

GPT-5.1 Chat vs Qwen3 30B A3B Thinking 2507Cross-provider

GPT-5.1 Chat vs Qwen3 CoderCross-provider