Compare Claude Sonnet 4 by Anthropic against GPT-5 Pro by OpenAI, context windows of 200K vs 400K, tested across 25 shared challenges. Updated April 2026.
Claude Sonnet 4 and GPT-5 Pro are both competitive models. Claude Sonnet 4 costs $3/M input tokens vs $15/M for GPT-5 Pro. Context windows: 200K vs 400K tokens. Compare their real outputs side by side below.
Claude Sonnet 4 is made by anthropic while GPT-5 Pro is from openai. Claude Sonnet 4 has a 200K token context window compared to GPT-5 Pro's 400K. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $15/M for GPT-5 Pro.
No community votes yet. On paper, GPT-5 Pro has the edge — bigger model tier, newer, bigger context window.
Claude Sonnet 4 is 8.0x cheaper per token — worth considering if cost matters.
Claude Sonnet 4 uses 503.7x more bold
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
25 fights queued
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
I need to think through this step-by-step.
Given information:
Let me work out how many sisters are in the family total.
If each of Sally's 3 brothers has 2 sisters, and all the brothers are in the same family, then there must be 2 sisters total in the family.
Since Sally is one of those sisters, and there are 2 sisters total, Sally must have 1 sister.
Therefore, Sally has 1 sister.
1
Explanation: Each brother’s two sisters are Sally plus one other girl. So there are 2 sisters total, meaning Sally has 1 sister.
Tests an AI's understanding of number representation
Tests an AI's randomness and creativity
Here are 5 jokes for you:
Why don't scientists trust atoms? Because they make up everything!
I told my wife she was drawing her eyebrows too high. She looked surprised.
Why don't eggs tell jokes? They'd crack each other up!
I'm reading a book about anti-gravity. It's impossible to put down!
Why did the scarecrow win an award? He was outstanding in his field!
All 5 jokes are unique - each one has a different setup, punchline, and comedic concept. They cover different types of wordplay: scientific puns (#1, #4), visual humor (#2), food puns (#3), and agricultural wordplay (#5).
Unique jokes: 5
Tests an AI's ability to generate vector graphics
Tests an AI's humor and creative writing ability
walks on stage, adjusts mic
So I'm 30 now, which means I'm officially an adult. Apparently. Though I still feel like I'm just a confused teenager wearing a slightly more expensive t-shirt.
You know what nobody tells you about being an adult? How much time you spend pretending to understand what other adults are talking about. I was at a dinner party last week – because that's what we do now, we have "dinner parties" instead of just "eating pizza on the couch" – and someone started talking about mortgage rates.
I just nodded along like, "Oh yes, rates. Very mortgage-y." Meanwhile, I'm thinking a mortgage is something you get at a fancy French restaurant.
mimics sophisticated nodding
"Mmm, yes, I'll have the mortgage, medium rare."
And don't get me started on small talk with neighbors. I live in an apartment building, and there's this unspoken rule that you have to acknowledge each other in the hallway. But what do you say?
"Hey, nice... existing near me."
"Thanks, you too. Love what you've done with your... door."
The worst is when you're both waiting for the elevator in complete silence. It's like a hostage situation, but with more awkward eye contact. You're both just standing there, praying the elevator comes before one of you has to comment on the weather.
stares ahead uncomfortably
"So... it's very... outside today."
I tried being one of those people who meal preps. You know these people? They spend their entire Sunday cooking seventeen identical containers of sad-looking chicken and broccoli. I bought all the containers, felt very organized, very adult-like.
Week one: Perfect little meals, properly labeled. I felt like a productivity guru.
Week two: I'm eating cereal for dinner and using the containers to store my collection of takeout sauce packets.
holds up imaginary container
"Ah yes, vintage soy sauce, 2023. A good week for Chinese delivery."
Speaking of food, grocery shopping as an adult is weird. When you're a kid, the grocery store is magical. Everything looks amazing. You want the cookies, the candy, the sugar cereal with the cartoon mascot.
Now I walk through the store like a tired parent, even though I don't have kids. I'm just disappointed in all my options.
walks slowly, shaking head
"This yogurt has too much sugar. These crackers have no fiber. Why is everything either terrible for you or tastes like cardboard had a baby with sadness?"
And I've started doing this thing where I read nutrition labels like I understand them. I don't. I just nod thoughtfully and put things back like I'm some kind of wellness expert.
"Hmm, seventeen grams of... things. That seems like too many things."
The real kicker is when you find yourself getting excited about household appliances. Last month, I spent twenty minutes explaining to my friend why I love my new vacuum cleaner. TWENTY MINUTES. About a vacuum.
"It has three different settings! And look at this attachment! This little brush thing goes in corners!"
My friend just stared at me like I'd been replaced by a suburban mom from 1987.
But you know what? I've decided to embrace it. Yes, I get excited about good storage solutions. Yes, I have opinions about thread count. Yes, I've used the phrase "back in my day" unironically, and I'm only thirty.
shrugs confidently
Because being an adult isn't about having it all figured out. It's about confidently pretending you know what you're doing while secretly googling "how to fold a fitted sheet" for the hundredth time.
And if that's not the American dream, I don't know what is.
pause
Also, if anyone actually knows how to fold a fitted sheet, please find me after the show. I'll pay you.
mic drop gesture
Thank you, you've been a wonderful audience! Don't forget to tip your servers and call your parents – they're worried about you!
Total time: approximately 3 minutes when delivered at normal comedy pace
Good to be here. I tried getting healthy, so I bought a smartwatch. Now my wrist is my manager. It vibrates every hour like, “Stand up.” I’m on a crowded bus like, “I’m standing inside three other people right now. Do you want me to levitate?”
It reminds me to breathe. Thanks, watch. Incredible tip. What did you think I was doing? Freestyle apnea?
The step goal is the worst. At 11:58 PM I’m power-walking around my kitchen island with the dignity of a Roomba that saw a ghost. I tried to cheat by shaking my wrist and the watch was like, “Nice try, tambourine.”
I downloaded a meditation app. The voice is so soothing it sounds like it’s trying to sell me a river. “Notice your thoughts… let them drift.” My thoughts don’t drift. They hover in the corner like a ceiling spider waiting for me to blink.
I went to the grocery store, because if you’re healthy you have to buy vegetables publicly, with witnesses. I used self-checkout, which is basically a relationship where the machine thinks you’re always lying.
“Please place item in the bagging area.” “I did.” “I didn’t feel it.” “I literally put it in the bag.” “Unexpected item in the bagging area.” Are you saying I surprised you with a banana?
Then the attendant shows up with that magic key. One tap and suddenly all my sins are forgiven. I swear that key could open Narnia.
I can’t remember birthdays, but I know bananas are 4011. If I’m ever kidnapped, the only clue the police will have is me whispering, “Bananas are 4011,” into a duct-taped phone.
They ask if I want to buy a bag for five cents. I always say no, like a hero, and then try to carry groceries with the confidence of a circus juggler. There goes an avocado rolling under the Red Bull display like it’s making a break for it.
Back home, every website greets me with a pop-up: “We value your privacy. Can we track you forever?” The choices are Accept All, Manage Preferences, or Become a Hermit. I clicked Manage Preferences once and it turned into an airplane cockpit. “Do you consent to analytics, personalization, and mild surveillance?” Mild surveillance sounds like a candle scent. “Mmm… notes of cedar and someone standing two houses away.”
I joined a group chat. A group chat is where plans go to die. Twelve people trying to pick a restaurant and we end up scheduling brunch for 2027. If you miss one hour, there are 135 messages. You scroll up like an archaeologist: “At layer three we discover a meme. It appears to be a dog in sunglasses. Society was complex.”
My mom texts with an ellipsis after everything. “Call me…” That’s not a message, that’s a trailer. She also sends voice notes from the kitchen: “Hi honey sizzle sizzle it’s not urgent sizzle sizzle call me when you can sizzle sizzle.” My phone smells like onions.
I took a beginner workout class. The instructor had a headset and the energy of a golden retriever on espresso. “How are we feeling!” Ma’am, I can see my ancestors. At minute twelve she goes, “This is the warm-up.” My smartwatch tried to call an ambulance because my heart thought it saw a bear.
By the end of the day, everything in my life is barking orders. The watch says, “Stand.” The app says, “Breathe.” The website says, “Accept cookies.” The self-checkout says, “Unexpected item.” The group chat says, “Are you coming?” And I’m just in my kitchen doing desperate laps with a bag of kale yelling, “I’m trying!”
I don’t want to be optimized. I want to be treated like a houseplant. Give me water, put me near a window, and once a week tell me I’m doing a great job. If I start drooping, don’t judge me—just rotate me. Thanks, everybody.
Recreate an interactive, classic Mario level in a single HTML file.
Tests an AI's ability to create a detailed world map in SVG format
Generate SVG art of a randomly chosen animal in a setting of its choosing.
Generate a unique and simple recipe with common ingredients.
Create a starter plan for improving long-term health.
Design a clean SVG logo for a fictional brand.
Create a stylish, animated digital business card.
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