Compare Claude Opus 4 by Anthropic against GPT OSS 20B by OpenAI, in 2 community votes, claude opus 4 wins 100% of head-to-head duels, context windows of 200K vs 131K, tested across 35 shared challenges. Updated February 2026.
In 2 community votes, Claude Opus 4 wins 100% of head-to-head duels. Claude Opus 4 leads in Web Design. Based on blind community voting from the RIVAL open dataset of 2+ human preference judgments for this pair.
35 challenges
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
I need to work through this step-by-step.
Given information:
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:
Therefore, Sally has 1 sister.
Tests an AI's randomness and creativity
Here are 5 jokes:
Why don't scientists trust atoms? Because they make up everything!
What do you call a bear with no teeth? A gummy bear!
Why did the scarecrow win an award? He was outstanding in his field!
What do you call a fake noodle? An impasta!
Why don't eggs tell jokes? They'd crack up!
All 5 jokes are unique - each one has a different setup and punchline, covering different topics (atoms/scie nce, bears, scarecrows, pasta, and eggs).
Here are five jokes for you:
Why don’t skeletons fight each other?
They don’t have the guts.
What does a cloud wear under its jacket?
Thunderwear.
Why did the scarecrow win an award?
Because he was outstanding in his field.
What do you call a fake noodle?
An impasta.
Why did the math book look sad?
Because it had too many problems.
How many are unique?
All five jokes are unique – 5 distinct jokes.
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
"Modern Life is Weird"
[Walk on stage]
You know what's crazy about being an adult? Nobody tells you that half of it is just googling things you're too embarrassed to ask real people. Last week I googled "is it normal for my knee to sound like bubble wrap? " The answer was either "yes, totally fine" or "you have six weeks to live." Thanks, internet!
[Pause]
I went to the doctor about it. You know you're getting old when your doctor looks like they should be asking YOU for ID to buy alcohol. This kid walks in with a stethoscope, and I'm like, "Did you just graduate... fr om middle school?"
But here's what really gets me – why do we act completely insane at the doctor's office? They ask, "How much do you drink?" and suddenly I'm doing calculus in my head. "Well, let's see, carry the one... I have a glas s of wine with dinner." Yeah, a glass. It's just a really big glass. It's a vase, actually. I drink wine fro m a vase.
[Mime drinking from large container]
And don't get me started on grocery shopping. Why do I need a PhD to buy shampoo? There's moisturizing, volu mizing, clarifying, fortifying... I just want my hair to be clean! I don't need it to solve my emotional pro blems!
Plus, self-checkout is a trap. They put you in charge of scanning your own groceries like you work there. Th en the machine starts screaming "UNEXPECTED ITEM IN BAGGING AREA!" Yeah, it's unexpected because I don't wor k here! I'm doing my best, robot!
[Pause for effect]
The worst part is when you're buying embarrassing things. Last week I had toilet paper, ice cream, and cat f ood. The machine froze, and the teenage employee had to come over. He looked at my items and I could see him thinking, "This person's having a rough week."
[Shrug]
Speaking of technology, my phone knows too much about me. It autocorrects "running late" before I even type it because that's apparently my catchphrase now. My maps app just assumes I'm lost. It doesn't even wait for me to ask for directions anymore. I'll be sitting on my couch and it's like, "Turn right to get to your kit chen."
And what's with password requirements these days? "Must contain uppercase, lowercase, numbers, symbols, the blood of your firstborn, and a haiku about your childhood fears." Then they're like, "Don't write it down!" Where am I supposed to store this information? I can't remember why I walked into a room!
[Pace across stage]
You know what else nobody prepared me for? How excited I'd get about cancelled plans. Someone texts "Hey, ca n we raincheck?" and I'm already in my pajamas like "Oh no! What a shame! I was so looking forward to puttin g on real pants!"
Because going out now requires preparation. I need three business days' notice. I need to charge my social b attery. I need to practice conversation topics. Remember when we could just... show up places?
[Final beat]
The truth is, we're all just walking around pretending we know what we're doing. But at least we're all conf used together. And hey, if you ever see someone at the store at 10 PM buying wine in a box and googling "why does my back hurt when I breathe?" – just give them a nod. We're all in this together.
[Pause]
Thank you, you've been a wonderful audience! Don't forget to validate your parking – unlike my life choices!
[Exit]
[Walks onto the stage, waves, smiles]
Hey folks, great to see you all tonight. You know, I was driving this morning, and I realized something: my GPS is basically a motivational speaker. “In 300 feet, turn left.” “You’re almost there.” I swear, if my GPS could talk, it’d be like, “Okay, you’re going to miss your coffee. Let’s talk about your life choices.”
So I got off at a coffee shop. The barista asked me, “What would you like?” I said, “Anything with a little extra bitterness.” She gave me an espresso shot. I stared at it and thought, “Is this the new ‘self‑help’ foam art?”
You ever notice how people say, “It’s not a big deal.” And then the next day, you’re in the ER with a broken arm and the nurse says, “It’s fine, just a bruise.” I’ve never had a bruise this dramatic. I’m flipping a coin: heads = I lose it, tails = I get a new scar.
Speaking of losing things—lost my keys, lost my phone, lost my dignity. You can’t find your keys, but you can find your phone. My phone’s been attached to my shirt for the last three hours. It’s like a clingy boyfriend. “Are you with me?” “No, that’s your phone. I’m with my dignity.”
And then there’s dating. I just signed up on a dating app. The first message I got was “What’s your favorite binge-worthy show?” I replied, “I’m not a TV person.” She replied, “Oh, so you’re a human? That’s… unexpected.” It’s like dating apps are trying to convince us that we’re not just a few thousand likes away from a broken heart.
Anyway, that’s my time. Thanks for being a great audience—just like my phone, you’ve been my constant. Love you all!
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
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.
Recreate an interactive, classic Mario level in a single HTML file.
Tests an AI's ability to replicate an existing UI with Tailwind CSS
Tests an AI's ability to create interactive web elements
Tests an AI's ability to create a detailed world map in SVG format
Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.
