Updated Sep 17, 2025

Our Verdict

Claude Opus 4

Qwen3 Coder FlashRunner-up

No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, bigger context window, major provider backing.

Qwen3 Coder Flash is 50x cheaper per token — worth considering if cost matters.

Too close to call

Writing DNA

Style Comparison

Similarity

100%

Claude Opus 4 uses 11.2x more emoji

Claude Opus 4

Qwen3 Coder Flash

64%Vocabulary60%

62wSentence Length92w

0.52Hedging0.60

4.4Bold6.1

9.1Lists6.2

0.11Emoji0.00

1.87Headings1.64

0.27Transitions0.18

Based on 16 + 22 text responses

vs

Ask them anything yourself

Claude Opus 4

Qwen3 Coder Flash

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

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Qwen3 Coder Flash vs MiniMax M1New provider

Qwen3 Coder Flash vs GPT-5New provider

Qwen3 Coder Flash vs Gemini 2.5 Pro Preview 06-05New provider

Claude Opus 4vsQwen3 Coder Flash

35 fights queued

Why Claude Opus 4?

1.6x more context200K

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified72.5% vs 50.3%

Why Qwen3 Coder Flash?

50x cheaper overall$0.30/M in · $1.50/M out

4 months newerSep 2025

Claude Opus 4Qwen3 Coder Flash

Input price

$15.00/M

$0.30/M

Output price

$75.00/M

$1.50/M

Context

200K

128K

Released

May 2025

Sep 2025

Benchmarks1 common

SWE-bench Verified

72.5%+30.6%

50.3%

Favorites

Claude Opus 4Qwen3 Coder Flash

Movie

Arrival

Arrival

Casablanca

Casablanca

Album

The Dark Side of the Moon

The Dark Side of the Moon

Abbey Road

Book

Cien años de soledad

Cien años de soledad

Gabriel García Márquez

The Great Gatsby

The Great Gatsby

F. Scott Fitzgerald

City

Istanbul

Tokyo

Game

Portal 2

Portal 2

Shooter, Puzzle4.6

The Legend of Zelda: Ocarina of Time

The Legend of Zelda: Ocarina of Time

Adventure, Action4.4

12 / 35

01

Logic Puzzlereasoning

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

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025text

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

Try this prompt

Vote

2 / 35

02

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025text

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

Try this prompt

Vote

3 / 35

03

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025svg

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

Try this prompt

Vote

4 / 35

04

Xbox Controller SVG Artimage generation

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

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025svg

Try this prompt

Vote

5 / 35

05

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025text

The Modern Dating World

So I went on this date last week, and the guy was really into his phone. I'm thinking, "This is great! He's not distracted by my terrible conversation skills."

But then he starts scrolling through his feed while we're eating dinner. And I'm like, "What are you doing?" He goes, "Just checking my notifications." I said, "That's like telling someone you're interested in them but you're also checking if anyone else likes you too."

He says, "Well, I've been dating for two months and I want to make sure I'm getting good matches."

I was like, "What, did you get an app for your relationship?"

The worst part is, he literally had his phone on the table with his food. So he eats with one hand and scrolls with the other. I'm thinking, "Is this how you eat your pizza? Is this how you eat your life?"

And then he has this whole conversation about how he only dates people who are "authentic." I'm like, "You mean people who don't pretend they're interested in you when they're actually just trying to find their next meal."

I'm just trying to have a conversation about my feelings, and he's like, "What are you doing with your life?"

I said, "I work at a grocery store."

He goes, "Oh, that sounds really fulfilling."

I said, "It's not my dream job, but it pays the bills."

He responds, "That's okay, there's nothing wrong with having a job."

I said, "Thanks, I'll remember that."

And then he asks me what I want to do with my life.

I said, "I want to be happy."

He said, "That's so noble."

I said, "No, I want to be happy with you."

He said, "That's so sweet."

And I said, "I know. That's why I'm asking you to marry me."

He said, "That's a big commitment."

I said, "You're right. I was going to wait until after the first date."

[This is about 3 minutes of material - just the right amount to keep the audience laughing without running over time]

Try this prompt

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6 / 35

06

Pokémon Battle UI Recreationweb design

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

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025website

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

Try this prompt

Vote

Sponsored

7 / 35

07

Three.js 3D Gameweb design

Create a 3D building and driving game in a single self-contained HTML file using Three.js. Tests an AI's ability to combine 3D graphics, game logic, and UI interactions on the web.

Claude Opus 4

Claude Opus 4

Anthropic · May 2025html

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

Try this prompt

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025html

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

Try this prompt

Vote

8 / 35

08

Mario Level UI Recreationweb design

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

Claude Opus 4

Claude Opus 4

Anthropic · May 2025website

Try this prompt

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025website

Try this prompt

Vote

9 / 35

09

Linear App Cloneweb design

Tests an AI's ability to replicate an existing UI with Tailwind CSS

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025website

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

Try this prompt

Vote

10 / 35

10

Interactive Catan Boardweb design

Tests an AI's ability to create interactive web elements

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025website

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

Try this prompt

Vote

11 / 35

11

World Map SVGimage generation

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

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025svg

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

Try this prompt

Vote

12 / 35

12

Random Tailwind Webappweb design

Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.

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

Qwen3 Coder Flash

Qwen3 Coder Flash

Qwen · Sep 2025website

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

Try this prompt

Vote

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