Updated Jul 23, 2025

Our Verdict

Claude Opus 4Winner

Qwen3 CoderRunner-up

Pick Claude Opus 4. In 45 blind votes, Claude Opus 4 wins 82% of the time. That's not luck.

Pick Qwen3 Coder for Reasoning. Pick Claude Opus 4 for Image Generation, Web Design. Qwen3 Coder is 79x cheaper per token — worth considering if cost matters.

Clear winner

Writing DNA

Style Comparison

Similarity

100%

Claude Opus 4 uses 1.6x more lists

Qwen3 Coder

Claude Opus 4

61%Vocabulary64%

72wSentence Length62w

0.61Hedging0.52

4.7Bold4.4

5.6Lists9.1

0.12Emoji0.11

1.43Headings1.87

0.20Transitions0.27

Based on 22 + 16 text responses

vs

Ask them anything yourself

Qwen3 Coder

Claude Opus 4

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026

Free preview13 of 58 slides

Download the free preview or get all 58 slides for $49

FAQ

Common questions

Keep going

Qwen3 Coder vs GPT-5New provider

Qwen3 Coder vs MiniMax M1New provider

Claude Opus 4 vs Pony AlphaNew provider

Qwen3 CodervsClaude Opus 4

23 fights queued

Why Qwen3 Coder?

77.5x cheaper overall$0.22/M in · $0.95/M out

2 months newerJul 2025

Why Claude Opus 4?

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified72.5% vs 69.6%

Qwen3 CoderClaude Opus 4

Input price

$0.22/M

$15.00/M

Output price

$0.95/M

$75.00/M

Context

—

200K

Released

Jul 2025

May 2025

Benchmarks1 common

SWE-bench Verified

69.6%

72.5%+4%

Favorites

Qwen3 CoderClaude Opus 4

Movie

The Shawshank Redemption

The Shawshank Redemption

Arrival

Arrival

Album

Kind of Blue

The Dark Side of the Moon

The Dark Side of the Moon

Book

The Left Hand of Darkness

The Left Hand of Darkness

Ursula K. Le Guin

Cien años de soledad

Cien años de soledad

Gabriel García Márquez

City

Kyoto

Istanbul

Game

The Stanley Parable

The Stanley Parable

Indie, Adventure4.4

Portal 2

Portal 2

Shooter, Puzzle4.6

12 / 23

01

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

I need to work through this step-by-step.

Given information:

Sally has 3 brothers
Each brother has 2 sisters

Let me think about this carefully:

Since Sally is a girl, she is one of the sisters that each brother has.

If each brother has 2 sisters, and Sally is one of those sisters, then there must be 1 additional sister besides Sally.

Therefore, Sally has 1 sister.

To verify:

Sally + 1 sister = 2 sisters total
Each of the 3 brothers has these same 2 sisters
This matches the given information that each brother has 2 sisters

Sally has 1 sister.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025text

I need to work through this step-by-step.

Given information:

Sally is a girl
Sally has 3 brothers
Each brother has 2 sisters

Since Sally is one of the sisters that each brother has, and each brother has 2 sisters total, that means th ere must be exactly 2 sisters in the family.

The 2 sisters are:

Sally
One other sister

Therefore, Sally has 1 sister.

Try this prompt

Vote

2 / 23

02

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

3 / 23

03

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

4 / 23

04

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

5 / 23

05

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

6 / 23

06

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025website

Try this prompt

Vote

Sponsored

7 / 23

07

World Map SVGimage generation

Tests an AI's ability to create a detailed world map in SVG format

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

8 / 23

08

Simple 7-Ingredient Recipeconversation

Generate a unique and simple recipe with common ingredients.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

9 / 23

09

Beginner's Longevity Planreasoning

Create a starter plan for improving long-term health.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

10 / 23

10

Minimalist Logo SVGimage generation

Design a clean SVG logo for a fictional brand.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

11 / 23

11

Mini Rhythm Game Snippetweb design

Create a super simple, playable rhythm game.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

12 / 23

12

Tamagotchi Virtual Petweb design

Design a simple interactive virtual pet.

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Claude Opus 4

Claude Opus 4

Anthropic · May 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

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