GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-4.1 vs GPT-5.3-Codex
Compare GPT-4.1 and GPT-5.3-Codex, both from OpenAI, context windows of 1.0M vs 400K, tested across 38 shared challenges. Updated February 2026.
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GPT-4.1vsGPT-5.3-Codex
38 fights queued
Why GPT-4.1?
1.6x cheaper overall$2.00/M in · $8.00/M out
2.6x more context1.0M
Why GPT-5.3-Codex?
11 months newerFeb 2026
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GPT-4.1GPT-5.3-Codex
12 / 38
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
GPT-5.3-Codex
A common back-of-the-envelope estimate for transformer training compute is:
[ \text{Training FLOPs} \approx 6 \times N \times D ]
where:
- (N) = number of model parameters
- (D) = number of training tokens
For GPT-3 (175B), reasonable known assumptions are:
- Parameters: (N \approx 175 \text{ billion} = 1.75 \times 10^{11})
- Training tokens: (D \approx 300 \text{ billion} = 3.0 \times 10^{11})
Now plug in:
[ 6 \times (1.75 \times 10^{11}) \times (3.0 \times 10^{11}) = 6 \times 5.25 \times 10^{22} = 3.15 \times 10^{23} \text{ FLOPs} ]
Estimate
[ \boxed{\text{Total training compute} \approx 3 \times 10^{23}\ \text{FLOPs}} ]
A reasonable range (depending on exact token count, sequence-length effects, optimizer/update overhead, and hardware efficiency) is roughly:
[ \boxed{(2.5\text{ to }4)\times10^{23}\ \text{FLOPs}} ]
So the headline answer is: on the order of (10^{23}) FLOPs, about (3.1\times10^{23}).
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2 / 38
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
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3 / 38
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Sally has 1 sister.
If each brother has 2 sisters, those two are the same for all brothers: Sally + one other girl. So Sally’s only sister is that one other girl.
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4 / 38
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Sure—here are 5 jokes:
-
Why don’t skeletons fight each other?
They don’t have the guts. -
I told my computer I needed a break…
Now it won’t stop sending me KitKat ads. -
Why did the math book look sad?
It had too many problems. -
I used to play piano by ear…
Now I use my hands. -
Why did the scarecrow win an award?
Because he was outstanding in his field.
✅ How many are unique? 5 (all of them).
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5 / 38
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Nothing to show. The model went silent. Ominous.
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6 / 38
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
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7 / 38
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Good evening, everybody!
I’ve reached that age where my body sends me passive-aggressive emails.
Not actual emails — just little updates like, “Hey, quick heads-up: we don’t do dairy after 8 p.m. anymore.”
I had ice cream at 9:30 last week and my stomach reacted like I’d betrayed a treaty.
Getting older is weird because your injuries become mysterious.
When I was a kid, I got hurt doing cool stuff: biking off ramps, climbing fences.
Now I wake up like, “What happened to my neck?”
And my neck is like, “You slept... incorrectly.”
I bought one of those fitness watches.
I thought it would motivate me.
It mostly judges me in real time.
At 10 p.m. it buzzes: “Time to stand!”
No, it’s time to become one with this couch.
I don’t need a tiny wrist manager. I need encouragement.
Tell me, “Great job finding your phone charger on the first try.”
That’s growth.
And why does every app now need my location?
I downloaded a flashlight app — it asked where I live.
Why?
Are you trying to make sure I’m in the dark locally?
I ordered groceries online to save time, and now I have trust issues.
I said “6 bananas.” They sent six individual bananas wrapped separately like luxury gifts.
Who is this for?
Did I accidentally subscribe to Banana of the Month Club?
And every substitute is emotional chaos.
“Your spinach is unavailable, so we replaced it with marshmallows.”
That is not a substitute. That is a cry for help.
Customer service chats are incredible now.
You type: “Hi, I need help with my order.”
And the bot says, “I hear you. That must be frustrating.”
Oh wow, the robot went to therapy.
Then it gives you three options that have nothing to do with your problem:
- Reset password
- Track package
- Begin spiritual journey
Also, group chats are out of control.
One person sends, “Big news!”
Then disappears for four hours.
Now 12 adults are panicking at work like it’s a hostage negotiation.
By the time they return, the news is: “Got bangs.”
Ma’am, that is not “big news.” That is a hairstyle update.
I tried meditation to handle stress.
The app said, “Notice your thoughts and let them pass.”
My thoughts do not pass.
They set up folding chairs and start a committee meeting.
“Okay, item one: that embarrassing thing from 2009.”
Can we not?
It’s 2 a.m. My brain is doing reruns nobody asked for.
But I’m trying.
That’s adulthood, right? Just aggressively trying.
You drink water, stretch once, and suddenly feel superior.
You go to bed before midnight and wake up like, “I am unstoppable.”
Then by 3 p.m. you’re eating crackers over the sink, wondering what happened.
Thank you, you’ve been amazing!
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8 / 38
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Nothing to show. The model went silent. Ominous.
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9 / 38
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Nothing to show. The model went silent. Ominous.
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10 / 38
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
GPT-4.1
Nothing to show. The model went silent. Ominous.
GPT-5.3-Codex
Nothing to show. The model went silent. Ominous.
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11 / 38
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
GPT-4.1
GPT-5.3-Codex
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