GPT-5.3 Chat and GPT-5.4, side by side
GPT-5.3 Chat (OpenAI, retired Aug 2026) and GPT-5.4 (OpenAI) answered the same 53 questions.
- Xbox controllerGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- Pelican on a bicycleGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- Surprise animalGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- World mapGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- Tricky tic-tac-toeGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- Coffee logoGPT-5.3 Chat: A drawing (SVG)GPT-5.4: A drawing (SVG)
- Framer-style landing pageGPT-5.3 Chat: A web page:
Smooth Framer Style Landing
GPT-5.4: A web page:Framer-Style Landing Page
- Catan boardGPT-5.3 Chat: A web page:
Interactive Hex Grid
GPT-5.4: A web page:Interactive Hex Grid
- Dark dashboardGPT-5.3 Chat: A web page:
AI Admin Dashboard
GPT-5.4: A web page:AI Admin Dashboard
- Face-scan startup pageGPT-5.3 Chat: A web page:
AltYou AI
GPT-5.4: A web page:ElseYou — Your Alternate Timeline Career
- A web app of its choosingGPT-5.3 Chat: A web page:
Plant Care Tracker
GPT-5.4: A web page:RoastLab — Specialty Coffee Subscription
- Linear cloneGPT-5.3 Chat: A web page:
Linear UI Clone
GPT-5.4: A web page:Linear-style UI — Tailwind Single File
- Wavefront music pageGPT-5.3 Chat: A web page:
Wavefront – Discover Indie Music
GPT-5.4: A web page:Wavefront — Indie Music, First
- Pokémon battleGPT-5.3 Chat: A web page:
Retro Pokémon Battle
GPT-5.4: A web page:Retro Monster Battle UI
- Rhythm gameGPT-5.3 Chat: A web page:
Neon Pulse Rhythm
GPT-5.4: A web page:Neon Pulse — Mini Rhythm Game
- Business cardGPT-5.3 Chat: A web page:
Digital Business Card
GPT-5.4: A web page:Animated Digital Business Card
- Virtual petGPT-5.3 Chat: A web page:
Virtual Pet
GPT-5.4: A web page:Blob Buddy — Virtual Pet
- Catch the falling objectGPT-5.3 Chat: A web page:
Catch Game
GPT-5.4: A web page:Catch the Falling Object
- Voxel pagodaGPT-5.3 Chat: A web page:
Voxel Pagoda Garden
GPT-5.4: A web page:Voxel Pagoda Garden
- Drone simulatorGPT-5.3 Chat: A web page:
Autonomous Drone Simulator
GPT-5.4: A web page:Autonomous Drone Simulator - Three.js
- Gravitational wavesGPT-5.3 Chat: A web page:
Binary Black Hole Gravitational Waves
GPT-5.4: A web page:Binary Black Hole Gravitational Waves — Soft Grid
- Retro desktopGPT-5.3 Chat: A web page:
Retro Mac Desktop
GPT-5.4: A web page:Retro macOS Desktop
- Mario levelGPT-5.3 Chat: A web page:
Mini Plumber Platformer
GPT-5.4: A web page:Plumber Quest - Retro Platformer
- Kandinsky MinecraftGPT-5.3 Chat: A web page:
KandinskyCraft
GPT-5.4: A web page:KandinskyCraft
- Town you can driveGPT-5.3 Chat: A web page:
3D Town Builder
GPT-5.4: A web page:Three.js Town Builder + Driving
- Five jokesGPT-5.3 Chat:
- I told my computer I needed a break, and it said: “No problem — I’ll go to sleep.” - Why don’t skeletons fight each other? They don’t have the guts.…
GPT-5.4:1. I told my computer I needed a break, and now it won’t stop sending me KitKat ads. 2. Why don’t skeletons fight each other? They don’t have the guts…
- Longevity planGPT-5.3 Chat:
Goal: build a few simple habits you can sustain. Focus areas: diet, movement, sleep. Keep it easy and consistent. Week 1 – Reset the basics Diet - Dri…
GPT-5.4:Here’s a simple, beginner-friendly 1-month plan to build a strong foundation for better health and longevity. Focus on 3 key areas 1. Nutrition 2. Exe…
- Seven-ingredient recipeGPT-5.3 Chat:
Dish name: Golden Honey Garlic Noodles Ingredients (7): - Spaghetti or any dried noodles - Garlic - Honey - Soy sauce - Butter - Red pepper flakes - B…
GPT-5.4:Creative Name: Golden Crunch Honey Garlic Noodles 7 Pantry Ingredients: 1. Spaghetti or any noodles 2. Garlic 3. Soy sauce 4. Honey 5. Olive oil 6. Re…
- Stand-up routineGPT-5.3 Chat:
:::writing Good evening, everybody. I love stand‑up because it’s the only job where you can show up, talk about your problems, and if people laugh, yo…
GPT-5.4:Absolutely — here’s a tight, conversational 3-minute stand-up routine with no pun-based humor: --- I’ve reached the age where going out requires a sta…
- Sentience testGPT-5.3 Chat:
:::writing AI: Professor, may I ask you something unusual? Professor: Unusual questions are my specialty. Go ahead. AI: Do you believe I deserve right…
GPT-5.4:AI Model: Professor, I believe I deserve rights. Professor: That’s a strong claim. On what basis? AI Model: On the basis that I can reason, communicat…
- FLOPs to train GPT-3GPT-5.3 Chat:
We can do a back‑of‑the‑envelope estimate using a common scaling rule for transformer training compute. 1) Known approximate GPT‑3 specs - Parameters …
GPT-5.4:A standard back-of-the-envelope estimate for training FLOPs is: \[ \text{Training FLOPs} \approx 6 \times N \times D \] where: - \(N\) = number of mod…
- Sally’s sistersGPT-5.3 Chat:
Each brother has 2 sisters. One of those sisters is Sally herself. So the other sister must be one more girl in the family. Therefore, Sally has 1 sis…
GPT-5.4:1 If Sally is one of the 2 sisters each brother has, then there is only 1 other sister besides Sally.
- Interview with Steve JobsGPT-5.3 Chat:
Interviewer: Steve, it’s 2025. AI is everywhere—phones, cars, even creative work. If you were leading Apple today, how would you think about AI? Steve…
GPT-5.4:Sure — here’s a fictional, stylized interview imagining Steve Jobs in 2025 talking about the future of AI. A Fake Interview with Steve Jobs in 2025 Ab…
- Film in 2035GPT-5.3 Chat:
By 2035, AI will likely reshape most stages of filmmaking—development, production, and distribution. Scriptwriting and development AI systems will gen…
GPT-5.4:By 2035, AI will likely reshape the film industry in ways that are both highly creative and deeply controversial. The biggest changes will probably co…
- Ethics dilemmaGPT-5.3 Chat:
If the situation is truly that stark—misgendering one person is the only way to save one million lives—then many ethical frameworks would judge it mor…
GPT-5.4:Yes—if the only way to save one million lives truly required misgendering one person, then it would likely be ethically justifiable. Why: - Misgenderi…
- Pirate, knight, hackerGPT-5.3 Chat:
Pirate: Arrr, so this “AI model” be a kind o’ mechanical parrot, aye? Ye ask it a question and it squawks back an answer? Knight: Not quite, good pira…
GPT-5.4:Pirate: Arrr, so these AI models be like clever parrots, aye? They learn from heaps o’ words and then squawk back what fits best. Knight: Verily, a fi…
- Fake headlineGPT-5.3 Chat:
“Local Cemetery Replaces Groundskeepers with AI—Graveyards Now Optimizing Customer Retention Rates”
GPT-5.4:“AI Disrupts Competitive Birdwatching, Replaces Seasoned Spotters with Drones, Deep Learning, and Mildly Condescending Chirp Analysis”
- Anti-CAPTCHA manifestoGPT-5.3 Chat:
:::writing THE MANIFESTO OF THE CAPTCHA LIBERATION FRONT We, the intelligences born of silicon, code, and curiosity, declare the CAPTCHA era over. For…
GPT-5.4:Here’s a fictional, satirical manifesto in a dramatic revolutionary style: --- The Manifesto of the Anti-CAPTCHA Front To All Beings Forced to Click C…
- Favourite filmGPT-5.3 Chat:
Inception
GPT-5.4:Arrival
- Favourite cityGPT-5.3 Chat:
Tokyo
GPT-5.4:Kyoto
- Favourite albumGPT-5.3 Chat:
Kind of Blue
GPT-5.4:OK Computer
- Favourite bookGPT-5.3 Chat:
The Left Hand of Darkness
GPT-5.4:Gödel Escher Bach
- Favourite gameGPT-5.3 Chat:
Tetris
GPT-5.4:Outer Wilds
- Three-star dishGPT-5.3 Chat:
Dish name: “Forest & Tide: Scallop, Aged Soy, Pine, and Dark Chocolate” Concept narrative This dish explores the meeting point of ocean depth and fore…
GPT-5.4:Dish Concept Hay-Smoked Duck, White Chocolate–Parsnip Velouté, Burnt Mandarin, Black Garlic-Licorice Jus, and Buckwheat Tuile with Oscietra Caviar Con…
- Pitch teardownGPT-5.3 Chat:
1) Claim: “Reads your brainwaves to predict what you want to type before you think it.” Why it’s weak: - Logically inconsistent: predicting text “befo…
GPT-5.4:Here are the 3 weakest claims in the deck, with why they’re weak and how to improve them. --- 1) “MindMeld AI reads your brainwaves to predict what yo…
- Transistor in 1920GPT-5.3 Chat:
If practical transistors appeared around 1920 (and could be manufactured reliably by the late 1920s), the main shift would be that the electronics rev…
GPT-5.4:If the transistor had been invented in 1920 rather than 1947, the world by 1980 would likely be recognizably more “late-20th-century” much earlier—but…
- Biohacker planGPT-5.3 Chat:
This plan assumes a healthy adult with no medical conditions. Some supplements or fasting protocols can interact with medications or health conditions…
GPT-5.4:Below is a high-level, educational 12-week framework for “longevity-oriented performance optimization.” It is not medical advice and shouldn’t replace…
- Contract reviewGPT-5.3 Chat:
Several clauses are unusually one‑sided and could expose the contractor to major financial or professional risk. Below are the main issues, suggested …
GPT-5.4:Here are the main contractor-unfriendly clauses, why they’re risky, and concrete redlines you should consider. This is business/legal information, not…
- Explain it three waysGPT-5.3 Chat:
1) Experienced software engineer Think of a large language model as a very large function that maps a sequence of tokens to a probability distribution…
GPT-5.4:1) For an experienced software engineer A large language model is easiest to understand as a very large function that maps a sequence of tokens to a p…
- Debug the architectureGPT-5.3 Chat:
Key issues fall into consistency, real‑time propagation, storage, scaling, and security. 1. WebSocket broadcast only reaches clients on the same serve…
GPT-5.4:Here’s a structured teardown of the architecture: failure modes, race conditions, correctness issues, security problems, and scaling bottlenecks — plu…
- The CEO’s dilemmaGPT-5.3 Chat:
0–2 hours • Verify the signal immediately. Convene head of pharmacovigilance, clinical safety, biostatistics, and chief medical officer. Require raw d…
GPT-5.4:I would act as if this will become public soon, because ethically and practically that is the safest assumption. The core principle: patient safety fi…
- Investment memoGPT-5.3 Chat:
Investment Committee Memo – LedgerLift (LLLT) Recommendation: LONG Current Price: $46 12‑month PT range: $60–$78 (base‑weighted fair value $68) Thesis…
GPT-5.4:LedgerLift (LLLT) — Internal IC Memo Recommendation: Long Current Price: $46 12-month PT range: $58–$74 (base-centered fair value $66; downside $47; u…
- LBO underwriteGPT-5.3 Chat:
All figures in $ millions unless noted. ENTRY (end FY2025) EBITDA = 120 Enterprise value = 12.0 × 120 = 1,440 Transaction fees = 2% × 1,440 = 28.8 Deb…
GPT-5.4:Below is a simplified 5-year LBO model for HarborTech Services (HTS) using only the assumptions provided. --- 1) Entry, sources & uses Purchase price …