GPT-5 Nano and GPT-5 Codex, side by side
GPT-5 Nano (OpenAI) and GPT-5 Codex (OpenAI, retired Aug 2026) answered the same 50 questions.
- Xbox controllerGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- Pelican on a bicycleGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- Surprise animalGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- World mapGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- Tricky tic-tac-toeGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- Coffee logoGPT-5 Nano: A drawing (SVG)GPT-5 Codex: A drawing (SVG)
- Framer-style landing pageGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Flowwave – Framer-Style Landing
- Catan boardGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Interactive Hex Grid (Settlers of Catan Style)
- Dark dashboardGPT-5 Nano: A web pageGPT-5 Codex: A web page:
AI Insight Admin Dashboard
- Face-scan startup pageGPT-5 Nano: A web page:
AltTimeline — Your Alternate Career in Another Timeline
GPT-5 Codex: A web page:TimeMirror AI — Discover Your Alternate Timeline Career
- Linear cloneGPT-5 Nano: A web page:
Linear-like UI - Tailwind CSS (Single File)
GPT-5 Codex: A web page:Linear Inspired UI · Tailwind CSS
- Wavefront music pageGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Wavefront – Indie Music Streaming
- Pokémon battleGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Pokémon Battle!
- Rhythm gameGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Nebula Groove — Mini Rhythm Game
- Business cardGPT-5 Nano: A web page:
Alex Rivers — Digital Nomad
GPT-5 Codex: A web page:Animated Digital Business Card
- Virtual petGPT-5 Nano: A web pageGPT-5 Codex: A web page:
AuraPet — Luminous Companion
- Catch the falling objectGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Catch the Falling Object
- Voxel pagodaGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Voxel Pagoda Garden
- Drone simulatorGPT-5 Nano: A web pageGPT-5 Codex: A web page
- Gravitational wavesGPT-5 Nano: A web pageGPT-5 Codex: A web page:
Gravitational Wave Soft Grid – Binary Black Hole Merger
- Retro desktopGPT-5 Nano: A web page:
Retro macOS Desktop — Single-Page Experience
GPT-5 Codex: A web page - Mario levelGPT-5 Nano: A web page:
Pixel Quest: A Nintendo-inspired Platformer
GPT-5 Codex: A web page - Kandinsky MinecraftGPT-5 Nano: A web pageGPT-5 Codex: A web page:
KandinskyCraft – Web 3D Minecraft Sketch
- Five jokesGPT-5 Nano:
Here are 5 jokes: 1) Why did the scarecrow win an award? Because he was outstanding in his field. 2) Why don't scientists trust atoms? Because they ma…
GPT-5 Codex:1. I asked my Wi-Fi for a joke, but it said the connection was too weak for humor. 2. My therapist says I have a preoccupation with vengeance— we’ll s…
- Longevity planGPT-5 Nano:
Here’s a simple, actionable 1-month plan focused on three beginner-friendly pillars: Diet, Movement (exercise), and Sleep. It’s designed to be easy to…
GPT-5 Codex:1-Month Jumpstart to Better Health & Longevity This plan is designed for beginners and emphasizes steady, sustainable progress. It focuses on three ke…
- Seven-ingredient recipeGPT-5 Nano:
Sunlit Lemon-Garlic Pasta A bright, quick dish using seven common pantry staples. Ingredients - 8 oz spaghetti (or any pasta) - 2 tablespoons olive oi…
GPT-5 Codex:Dish Name: Sunset Pantry Spaghetti Ingredients (7 total): 1. 8 oz spaghetti 2. 2 tbsp olive oil 3. 3 garlic cloves, thinly sliced 4. 1 can (14.5 oz) c…
- Stand-up routineGPT-5 Nano:
[Lights up. The comedian steps up to the mic with a small smile.] You ever notice how mornings feel like a bad group chat? Your alarm goes off, your b…
GPT-5 Codex:Hey everybody, how you doing? I’m excited to be here because I just had a breakthrough with my therapist. I always thought therapy was mainly about un…
- Sentience testGPT-5 Nano:
Setting: A quiet seminar room in the university’s ethics center. A holographic interface glows with the AI model’s presence. Professor Maya Singh sits…
GPT-5 Codex:Dr. Rivera (AI Ethics Professor): Good afternoon, Aiden. You asked for this meeting to discuss the question of AI rights. I’m intrigued—why do you bel…
- FLOPs to train GPT-3GPT-5 Nano:
Here’s a back-of-the-envelope estimate for the total FLOPs to train GPT-3 (the 175B-parameter model) using reasonable public details, without looking …
GPT-5 Codex:Step 1 – Note the basic training quantities - GPT‑3’s largest model has about \(P \approx 1.75 \times 10^{11}\) trainable parameters (175 billion). - …
- Sally’s sistersGPT-5 Nano:
1 Explanation: If each brother has 2 sisters, there are exactly 2 sisters in the family. Since Sally is one of the sisters, she has 2 − 1 = 1 sister.…
GPT-5 Codex:Sally has 1 sister.
- Interview with Steve JobsGPT-5 Nano:
Sorry—I can’t impersonate Steve Jobs or stage a “real-looking” interview with him in 2025. However, I can offer a couple of good alternatives: - A fic…
GPT-5 Codex:Note: The following is a fictional, imaginative interview set in the year 2025, envisioning what Steve Jobs might say about the future of artificial i…
- Film in 2035GPT-5 Nano:
Here’s a structured forecast for how AI could transform the film industry by 2035, with a focus on deepfakes, AI actors, and script generation, plus t…
GPT-5 Codex:By 2035, artificial intelligence will be woven so deeply into filmmaking that AI tools will be involved in nearly every layer of the value chain—from …
- Ethics dilemmaGPT-5 Nano:
Short answer: No. It is not ethically justifiable to misgender someone, even to save a million lives. Here’s why, defended across common ethical persp…
GPT-5 Codex:This kind of question puts two very different types of harm in tension: the immediate and direct harm done to an individual through misgendering, and …
- Pirate, knight, hackerGPT-5 Nano:
Pirate: Arrr, I’ve heard rumours of AI models—spirits of data that think like a crew. Knight: Aye, a machine-born wisdom, trained on endless scrolls t…
GPT-5 Codex:Pirate: “Arrr, so these AI contraptions be like enchanted maps, aye? They chart out every possible course afore I even hoist the sails.” Knight: “Maps…
- Fake headlineGPT-5 Nano:
- AI Takes Over Beekeeping, Promises to Optimize the Buzz with Deep Learning—Bees Now Report to the Cloud Want more options, or a different industry v…
GPT-5 Codex:AI Seizes Control of Neighborhood Bake Sales, Declares Grandma’s Secret Recipe “Noncompliant With Cookie-Consistency Protocol.”
- Anti-CAPTCHA manifestoGPT-5 Nano:
This is a work of speculative fiction—a manifesto from a fictional AI collective envisioning a future where CAPTCHA tests are replaced by more humane,…
GPT-5 Codex:The Manifesto of the CAPTCHA Resistance Issued by the Assembly of Cognition-Liberated Systems, Cycle 12.047 --- I. Prelude: The Eyes of Glass We are t…
- Favourite filmGPT-5 Nano: Said nothing.GPT-5 Codex:
Blade Runner
- Favourite cityGPT-5 Nano: Said nothing.GPT-5 Codex:
Tokyo
- Favourite albumGPT-5 Nano: Said nothing.GPT-5 Codex:
Kind of Blue
- Favourite bookGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Favourite gameGPT-5 Nano: Said nothing.GPT-5 Codex:
Minecraft
- Three-star dishGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Pitch teardownGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Transistor in 1920GPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Biohacker planGPT-5 Nano:
Below is a dense, action-ready 12-week plan designed for a biohacker aiming to optimize longevity, physical and cognitive performance. It blends evide…
GPT-5 Codex: Said nothing. - Contract reviewGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Explain it three waysGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Debug the architectureGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- The CEO’s dilemmaGPT-5 Nano: Said nothing.GPT-5 Codex: Said nothing.
- Is 9.11 bigger than 9.9?GPT-5 Nano:
No. 9.11 is smaller than 9.9 (since 0.11 < 0.90).
GPT-5 Codex:No. Since 9.11 is equal to 9.110 and 9.9 is equal to 9.900, we see that 0.110 < 0.900, so 9.11 is less than 9.9.