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

GPT-5.1-Codex-Mini is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. GPT-5.1-Codex-Mini has a 400K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

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

It depends on your use case. GPT-5.1-Codex-Mini and Qwen3.5 397B A17B 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 GPT-5.1-Codex-Mini cost compared to Qwen3.5 397B A17B?

GPT-5.1-Codex-Mini costs $1.5/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.90/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 GPT-5.1-Codex-Mini and Qwen3.5 397B A17B on Rival?

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

GPT-5.1-Codex-Mini is developed by OpenAI while Qwen3.5 397B A17B is developed by Qwen. GPT-5.1-Codex-Mini has a 400K token context window vs Qwen3.5 397B A17B's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

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

It depends on your use case. GPT-5.1-Codex-Mini and Qwen3.5 397B A17B 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 GPT-5.1-Codex-Mini cost compared to Qwen3.5 397B A17B?

GPT-5.1-Codex-Mini costs $1.5/M input tokens and Qwen3.5 397B A17B costs $0.6/M input tokens. Qwen3.5 397B A17B is $0.90/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 GPT-5.1-Codex-Mini and Qwen3.5 397B A17B on Rival?

This page shows a side-by-side comparison of GPT-5.1-Codex-Mini 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.

GPT-5.1-Codex-Mini vs Qwen3.5 397B A17B: Which Is Better?

Updated Feb 2026

Our Verdict

GPT-5.1-Codex-Mini

Qwen3.5 397B A17B

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

Too close to call

What do GPT-5.1-Codex-Mini 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-Codex-Mini

Input

$1.50

Output

$6.00

Qwen3.5 397B A17B

Input

$0.60

2.5× cheaper

Output

$3.60

1.7× cheaper

Qwen3.5 397B A17B is cheaper on both — 2.5× input, 1.7× output

Writing DNA

Style Comparison

Similarity

30%

Qwen3.5 397B A17B uses 22.8x more emoji

GPT-5.1-Codex-Mini

Qwen3.5 397B A17B

65%Vocabulary54%

20wSentence Length14w

0.56Hedging0.39

3.3Bold6.9

3.4Lists4.2

0.00Emoji0.23

0.08Headings0.93

0.05Transitions0.17

Based on 13 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1-Codex-Mini vs Ox AlphaNew provider

GPT-5.1-Codex-Mini vs MiniMax M3New provider

GPT-5.1-Codex-Mini vs Llama 4 MaverickNew provider

Updated Feb 2026

Our Verdict

GPT-5.1-Codex-Mini

Qwen3.5 397B A17B

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

Too close to call

What do GPT-5.1-Codex-Mini 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-Codex-Mini

Input

$1.50

Output

$6.00

Qwen3.5 397B A17B

Input

$0.60

2.5× cheaper

Output

$3.60

1.7× cheaper

Qwen3.5 397B A17B is cheaper on both — 2.5× input, 1.7× output

Writing DNA

Style Comparison

Similarity

30%

Qwen3.5 397B A17B uses 22.8x more emoji

GPT-5.1-Codex-Mini

Qwen3.5 397B A17B

65%Vocabulary54%

20wSentence Length14w

0.56Hedging0.39

3.3Bold6.9

3.4Lists4.2

0.00Emoji0.23

0.08Headings0.93

0.05Transitions0.17

Based on 13 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1-Codex-Mini vs Ox AlphaNew provider

GPT-5.1-Codex-Mini vs MiniMax M3New provider

GPT-5.1-Codex-Mini vs Llama 4 MaverickNew provider