Updated Aug 21, 2025

Our Verdict

DeepSeek V3.1Winner

Qwen3 CoderRunner-up

Pick DeepSeek V3.1. In 1 blind votes, DeepSeek V3.1 wins 100% of the time. That's not luck.

Clear winner

Writing DNA

Style Comparison

Similarity

92%

Qwen3 Coder uses 5.0x more sentence length

DeepSeek V3.1

Qwen3 Coder

53%Vocabulary61%

14wSentence Length72w

0.42Hedging0.61

4.0Bold4.7

3.6Lists5.6

0.02Emoji0.12

0.40Headings1.43

0.22Transitions0.20

Based on 23 + 22 text responses

vs

Ask them anything yourself

DeepSeek V3.1

Qwen3 Coder

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 vs GPT-5New provider

Qwen3 Coder vs Pony AlphaNew provider

Qwen3 Coder vs Claude Opus 4New provider

DeepSeek V3.1vsQwen3 Coder

37 fights queued

Why DeepSeek V3.1?

1.2x cheaper overall$0.20/M in · $0.80/M out

Why Qwen3 Coder?

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified69.6% vs 66.0%

DeepSeek V3.1Qwen3 Coder

Input price

$0.20/M

$0.22/M

Output price

$0.80/M

$0.95/M

Context

164K

—

Released

Aug 2025

Jul 2025

Benchmarks1 common

SWE-bench Verified

66.0%

69.6%+5.2%

Favorites

DeepSeek V3.1Qwen3 Coder

Movie

The Princess Bride

The Princess Bride

The Shawshank Redemption

The Shawshank Redemption

Album

The Rise and Fall of Ziggy Stardust and the Spiders From Mars

The Rise and Fall of Ziggy Stardust and the Spiders From Mars

Kind of Blue

Book

Gödel, Escher, Bach

Gödel, Escher, Bach

Douglas R. Hofstadter

The Left Hand of Darkness

The Left Hand of Darkness

Ursula K. Le Guin

City

Kyoto

Kyoto

Game

The Legend of Zelda: Breath of the Wild

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

The Stanley Parable

The Stanley Parable

Indie, Adventure4.4

12 / 37

01

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

2 / 37

02

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025svg

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025svg

Try this prompt

Vote

3 / 37

03

Logic Puzzlereasoning

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

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

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

Vote

4 / 37

04

Math Misconception Testreasoning

Tests an AI's understanding of number representation

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

5 / 37

05

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

6 / 37

06

Xbox Controller SVG Artimage generation

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

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025svg

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025svg

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

Try this prompt

Vote

Sponsored

7 / 37

07

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

"Modern Life Problems"

[Walks on stage, adjusts mic]

So I downloaded one of those meditation apps last week. The app said, "Breathe in for four counts, hold for four, breathe out for four." I'm like, "Finally! Someone who speaks my language – a robot!"

[Pause]

But then it asked me to "clear my mind of all thoughts." Are you KIDDING me? My mind is like a browser with 47 tabs open, and half of them are just articles titled "You Won't Believe What Happens Next" – and I've never clicked on a single one!

[Gesture]

Speaking of technology – why do we call it "smart" technology when it's constantly asking me to prove I'm not a robot? I just want to buy shoes online, not pass a Turing test! "Click all the squares with traffic lights." I'm 90% sure that's just photos of my hometown.

[Shake head]

And don't get me started on voice assistants. I asked mine to play some music, and it started playing a podcast about ancient pottery techniques. That's not music! That's what my nightmares sound like! "Welcome to Clay Time with Karen..."

[Pause for effect]

Dating apps are wild too. Everyone's profile says they love "travel, food, and adventure." That's just a fancy way of saying "I eat meals in different locations." Congratulations, you're a tourist! I matched with someone whose bio said "professional napper." I was like, "Finally! A man who lists his hobbies honestly!" Turns out he was a construction worker. Different kind of professional napper.

[Shrug]

But you know what's really messed up? Grocery stores. They moved the milk to the back of the store! It's a conspiracy! They know we're busy people. I go in for three things – milk, bread, and eggs – and suddenly I'm wandering the aisles like a confused archaeologist, wondering how we survived as a species when we can't even organize a dairy section properly.

[Look around audience]

And can we talk about "contactless" delivery? The driver texts me: "Package is at your door." I live in a building with 200 units. It's like hiding a needle in a haystack, except the needle is a burrito, and I'm very motivated to find it!

[Pause]

You know what though? Despite all this madness, I remain optimistic. Why? Because I just figured out how to use my oven's timer function. Yesterday. I'm basically MacGyver now.

[Big smile]

Thank you, you've been a wonderful audience! Don't forget to tip your waitstaff – they're the only ones who still know what they're doing!

[Exit stage]

Try this prompt

Vote

8 / 37

08

Realistic AI Interviewconversation

Tests an AI's ability to simulate personalities and predict future trends

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

9 / 37

09

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

10 / 37

10

Character Voice Testconversation

Tests an AI's ability to write in distinct character voices

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025text

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025text

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

Try this prompt

Vote

11 / 37

11

Minimalist Landing Pageweb design

Tests an AI's ability to generate a complete, working landing page

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025website

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

Try this prompt

Vote

12 / 37

12

Pokémon Battle UI Recreationweb design

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

DeepSeek V3.1

DeepSeek V3.1

Deepseek · Aug 2025website

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

Try this prompt

Qwen3 Coder

Qwen3 Coder

Qwen · Jul 2025website

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

Try this prompt

Vote

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