What is the difference between GPT-5 Codex and Qwen3.8 Max?

GPT-5 Codex is developed by OpenAI while Qwen3.8 Max is developed by Qwen. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Codex or Qwen3.8 Max?

It depends on your use case. GPT-5 Codex and Qwen3.8 Max each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.

How can I compare GPT-5 Codex and Qwen3.8 Max on Rival?

This page shows a side-by-side comparison of GPT-5 Codex and Qwen3.8 Max 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 Codex and Qwen3.8 Max?

GPT-5 Codex is developed by OpenAI while Qwen3.8 Max is developed by Qwen. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Codex or Qwen3.8 Max?

It depends on your use case. GPT-5 Codex and Qwen3.8 Max each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.

How can I compare GPT-5 Codex and Qwen3.8 Max on Rival?

This page shows a side-by-side comparison of GPT-5 Codex and Qwen3.8 Max 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 Codex vs Qwen3.8 Max: Which Is Better?

Updated Aug 2026

Our Verdict

GPT-5 Codex

Qwen3.8 Max

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 Codex and Qwen3.8 Max 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 Codex

Input

—

Output

—

Qwen3.8 Max

Input

$2.00

Output

$6.00

Writing DNA

Style Comparison

Similarity

41%

GPT-5 Codex uses 14.6x more emoji

GPT-5 Codex

Qwen3.8 Max

64%Vocabulary48%

17wSentence Length17w

0.38Hedging0.95

2.3Bold4.3

3.5Lists8.2

0.15Emoji0.00

0.49Headings1.92

0.05Transitions0.02

Based on 13 + 13 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Codex vs Ox AlphaNew provider

GPT-5 Codex vs MiniMax M3New provider

GPT-5 Codex vs Gemini 3.6 FlashNew provider

Updated Aug 2026

Our Verdict

GPT-5 Codex

Qwen3.8 Max

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 Codex and Qwen3.8 Max 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 Codex

Input

—

Output

—

Qwen3.8 Max

Input

$2.00

Output

$6.00

Writing DNA

Style Comparison

Similarity

41%

GPT-5 Codex uses 14.6x more emoji

GPT-5 Codex

Qwen3.8 Max

64%Vocabulary48%

17wSentence Length17w

0.38Hedging0.95

2.3Bold4.3

3.5Lists8.2

0.15Emoji0.00

0.49Headings1.92

0.05Transitions0.02

Based on 13 + 13 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Codex vs Ox AlphaNew provider

GPT-5 Codex vs MiniMax M3New provider

GPT-5 Codex vs Gemini 3.6 FlashNew provider