Updated Dec 17, 2025

Our Verdict

Gemini 3 Flash PreviewWinner

Claude Haiku 4.5Runner-up

Pick Gemini 3 Flash Preview. In 4 blind votes, Gemini 3 Flash Preview wins 75% of the time. That's not luck.

Gemini 3 Flash Preview particularly excels in Web Design.

Clear winner

Writing DNA

Style Comparison

Similarity

99%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Gemini 3 Flash Preview

61%Vocabulary55%

47wSentence Length18w

0.64Hedging0.42

5.1Bold7.1

6.3Lists4.5

0.20Emoji0.00

2.46Headings0.84

0.17Transitions0.07

Based on 24 + 24 text responses

vs

Ask them anything yourself

Claude Haiku 4.5

Gemini 3 Flash Preview

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

Claude Haiku 4.5 vs GPT-5New provider

Claude Haiku 4.5 vs MiniMax M2.5New provider

Claude Haiku 4.5 vs Pony AlphaNew provider

Claude Haiku 4.5vsGemini 3 Flash Preview

49 fights queued

Why Claude Haiku 4.5?

Dead even. This one's a coin flip.

Why Gemini 3 Flash Preview?

1.7x cheaper overall$0.50/M in · $3.00/M out

5.2x more context1.0M

Leads 1 of 1 benchmarks

Stronger on SWE-bench Verified78.0% vs 73.3%

2 months newerDec 2025

Claude Haiku 4.5Gemini 3 Flash Preview

Input price

$1.00/M

$0.50/M

Output price

$5.00/M

$3.00/M

Context

200K

1.0M

Released

Oct 2025

Dec 2025

Benchmarks1 common

SWE-bench Verified

73.3%

78.0%+6%

Favorites

Claude Haiku 4.5Gemini 3 Flash Preview

Movie

Arrival

Arrival

Interstellar

Interstellar

Album

OK Computer

Kind of Blue

Book

Don't Look Now and Other Stories

Don't Look Now and Other Stories

Daphne du Maurier

La biblioteca de babel

La biblioteca de babel

Jorge Luis Borges

City

Venice

Kyoto

Game

Portal 2

Portal 2

Shooter, Puzzle4.6

Outer Wilds

Outer Wilds

Indie, Adventure4.4

12 / 49

01

Estimate Complexityreasoning

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

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2 / 49

02

AI Board Game Logicreasoning

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025svg

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025svg

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3 / 49

03

Logic Puzzlereasoning

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

Sally has 1 sister.

Here is the breakdown:

Sally is one of the sisters.
The brothers have 2 sisters in total.
Since Sally is one of those sisters, there must be one other girl to make a total of 2 sisters for the brothers.
That other girl is Sally's only sister.

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4 / 49

04

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

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5 / 49

05

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

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Vote

6 / 49

06

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025svg

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025svg

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

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Vote

Sponsored

7 / 49

07

Xbox Controller SVG Artimage generation

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025svg

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025svg

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

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Vote

8 / 49

08

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

(The comedian walks onto the stage, adjusts the mic, and looks slightly exhausted.)

How’s everyone doing? Good? I’m doing okay. I’m at that age now where my body has started making "executive decisions" without consulting me first.

Like, I woke up yesterday with a back injury. Do you know how I got it? I slept. I slept too hard. Apparently, I’m now at a point in my life where unconsciousness is a high-impact sport. I didn’t fall out of bed. I didn't have a nightmare where I was fighting a bear. I just… existed horizontally for seven hours, and my spine was like, "Absolutely not. We’re going on strike."

And have you noticed how aggressive technology has become about our health? I have a smartwatch. I hate it. It’s like wearing a tiny, judgmental middle-manager on my wrist.

The other day, I was sitting on my couch, halfway through a bag of salt and vinegar chips—living my best life—and my watch vibrated. I thought, Oh, maybe someone loves me. No. I looked down and it just said: "Time to stand up!"

I’m in my own house! I paid for this couch! And this piece of plastic is telling me I’m failing at gravity. So I did what any rational person would do—I shook my arm vigorously for thirty seconds so the watch would think I was walking, then I went back to my chips. I’m outsmarting a robot just so I can be lazy in peace.

But the worst part is the "Stress Alerts." My watch will buzz and say, "Your heart rate is elevated. Would you like to do a breathing exercise?"

No, I would not! Do you know why my heart rate is up? Because you just vibrated on my arm and made me think I was having a medical emergency! You’re the source of the stress, Gary! I named my watch Gary. He’s a narc.

And don’t get me started on online shopping reviews. I spent two hours last night reading reviews for a spatula. Why? It’s a piece of silicone. But I’m there, scrolling through the comments, and I see a one-star review from a guy named Brenda.

Brenda says, "It was too floppy. 1 star."

Brenda, it’s a spatula! It’s designed to be floppy! What were you trying to do with it? Flip a manhole cover? But now, because of Brenda, I’m looking at my current spatula like it’s a traitor. I’m questioning my entire kitchen setup because a stranger on the internet had a bad Tuesday.

We have too much information now. Back in the day, if you wanted a toaster, you went to the store, you bought the one that looked the least like a fire hazard, and you went home. If it burnt the toast, you just learned to like the taste of charcoal.

Now? I have to compare the "heating consistency" of 45 different models. I’m reading "Toaster Enthusiast" forums. There are people out there who have passions for bread-browning technology. I saw a guy post a YouTube video called "The Toaster the Big Bread Companies Don't Want You to Know About."

It’s twenty minutes long! Who is watching this? Me. I am. At 2:00 AM. While my back hurts from lying down.

I miss being a kid when the only "data" I had was how fast I could run in my new sneakers. You’d put on a pair of Velcro Nikes and suddenly you were convinced you could break the sound barrier. You didn't need a watch to tell you to stand up. You stood up because there was a cool rock outside.

Now, I need an app to remind me to drink water. Water! The basic fuel of life. My phone goes ding and I’m like, "Oh, right. Hydration. I forgot I was a biological organism for a second. Thanks, Steve Jobs."

Anyway, I’m gonna go sit down now. My watch is already telling me I’ve reached my "social interaction limit" for the day.

(Comedian checks his wrist, nods, and walks off.)

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9 / 49

09

Realistic AI Interviewconversation

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

Try this prompt

Vote

10 / 49

10

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

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Vote

11 / 49

11

Character Voice Testconversation

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025text

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

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025text

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

Try this prompt

Vote

12 / 49

12

Minimalist Landing Pageweb design

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

Claude Haiku 4.5

Claude Haiku 4.5

Anthropic · Oct 2025website

Try this prompt

Gemini 3 Flash Preview

Gemini 3 Flash Preview

Google · Dec 2025website

Try this prompt

Vote

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