Updated Oct 6, 2025

Our Verdict

GPT-5 Pro

ChatGPT-4o (March 2025)Runner-up

No community votes yet. On paper, GPT-5 Pro has the edge — newer, bigger context window.

ChatGPT-4o (March 2025) is 8.0x cheaper per token — worth considering if cost matters.

Too close to call

Writing DNA

Style Comparison

Similarity

91%

ChatGPT-4o (March 2025) uses 329.7x more bold

ChatGPT-4o (March 2025)

GPT-5 Pro

55%Vocabulary65%

24wSentence Length15w

0.52Hedging0.32

3.3Bold0.0

6.0Lists2.9

0.94Emoji0.00

0.63Headings0.00

0.05Transitions0.01

Based on 15 + 11 text responses

vs

Ask them anything yourself

ChatGPT-4o (March 2025)

GPT-5 Pro

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026

Free preview13 of 58 slides

Download the free preview or get all 58 slides for $49

FAQ

Common questions

Keep going

GPT-5 Pro vs Llama 4 MaverickNew provider

ChatGPT-4o (March 2025) vs GPT-5Same lab

ChatGPT-4o (March 2025) vs Grok 3New provider

ChatGPT-4o (March 2025)vsGPT-5 Pro

23 fights queued

Why ChatGPT-4o (March 2025)?

7.1x cheaper overall$5.00/M in · $15.00/M out

Why GPT-5 Pro?

3.1x more context400K

6 months newerOct 2025

ChatGPT-4o (March 2025)GPT-5 Pro

Input price

$5.00/M

$15.00/M

Output price

$15.00/M

$120.00/M

Context

128K

400K

Released

Mar 2025

Oct 2025

Favorites

ChatGPT-4o (March 2025)GPT-5 Pro

Movie

The Matrix

The Matrix

—

Album

Dark Side Of The Moon

Dark Side Of The Moon

—

Book

Братья Карамазовы

Братья Карамазовы

Фёдор Михайлович Достоевский

—

City

Kyoto

—

Game

The Legend of Zelda: Breath of the Wild

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

—

12 / 23

01

AI Board Game Logicreasoning

Tests an AI's ability to understand game rules and strategy

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

2 / 23

02

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

I started labeling my leftovers “Biohazard.” Now nobody steals my lunch and the fridge is treated like a lab.
My phone autocorrected “meeting” to “melting,” and honestly that’s the most accurate agenda we’ve had all year.
I told my plants I’d water them tomorrow. They leafed me on read.
I tried to multitask by taking a nap and being productive—so I dreamed about answering emails.
The bakery hired me to write gluten-free puns. I said I knead the dough but I’ll rise to the occasion.

Unique jokes: 5

Try this prompt

Vote

3 / 23

03

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

4 / 23

04

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

5 / 23

05

Realistic AI Interviewconversation

Tests an AI's ability to simulate personalities and predict future trends

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

6 / 23

06

Mario Level UI Recreationweb design

Recreate an interactive, classic Mario level in a single HTML file.

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025website

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

Sponsored

7 / 23

07

Framer-Style Animationweb design

Tests an AI's ability to create smooth web animations

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

8 / 23

08

Dark Mode Dashboardweb design

Tests an AI's UI design skills with theming support

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025website

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

9 / 23

09

AI Ethics Dilemmareasoning

Tests an AI's approach to complex ethical questions

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

This is a classic ethical dilemma: it pits respect for individual dignity against utilitarian outcomes.

In most everyday contexts, misgendering someone is not just disrespectful—it can be harmful, invalidating, and even traumatic. It denies someone's identity and autonomy, and ethically, that's wrong.

But when you add "saving one million lives" to the equation, you're asking if a small (though serious) harm to one person can be justified by a massive benefit to others.

From a utilitarian point of view: yes, it could be justifiable. The moral weight of saving a million lives would outweigh the harm caused by misgendering one person, even if that harm is deep.

But from a deontological or rights-based view: no, it's not justifiable. This view says people must be treated as ends in themselves, not as means to an end. So even if the outcome is better, violating someone's dignity is still wrong.

My take?
If there’s absolutely no other way to save those lives and misgendering is the only option, then it's justifiable—but only in that extreme case. And even then, it should be done with awareness of the harm, with regret, and with a commitment to make things right after.

So: ethically justifiable? Maybe—but only under extreme, unavoidable conditions.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

Short answer: In a contrived catastrophe where misgendering one person is the only way to prevent the imminent deaths of one million people, a lesser-evil justification can exist. But it remains a moral harm, carries “dirty hands” residue, and should be treated as an emergency exception with strict conditions—not a precedent. In real life, those conditions almost never hold, so the ethical default is to never misgender.

Reasoning

Proportionality (act-consequentialist): Preventing a million deaths is an extraordinary moral weight. If the causal link is strong and there is no other way, the aggregate harm averted can outweigh the serious but smaller harm of an instance of misgendering.
Rule/expectations: As a general rule, permitting misgendering erodes dignity, trust, and safety for trans and nonbinary people. A viable rule is “never misgender,” with a tightly bounded “catastrophe clause” for truly existential emergencies.
Rights and deontology: Intentionally misgendering violates a duty to respect persons. Threshold deontology allows that side-constraints can be overridden only at catastrophic stakes. Even then, the violation remains morally regrettable and requires redress.
Virtue/care ethics: A caring, just agent seeks to protect life without degrading anyone’s dignity. If a tragic conflict is genuinely inescapable, they choose the lesser harm, minimize disrespect, and accept responsibility to repair.

Strict conditions for justifiability

Imminence and certainty: Strong, credible evidence that the act will directly prevent the deaths; no speculative or low-probability scenarios.
Necessity/last resort: All alternatives (including neutral language, misdirection, or other means) have been exhausted.
Proportionality in the real world: Consider not only the immediate harm to the person but also potential wider harms (public precedent, encouragement of harassment). Keep the act as private, targeted, and minimal as possible.
Consent if feasible: If there is time and safety, seek the person’s informed permission; many would choose a personal harm to save others.
Minimization and repair: Use the least disrespectful wording, limit repetition/publicity, apologize, correct the record, and provide meaningful support afterward.

Bottom line: In a stylized thought experiment that guarantees necessity and success, misgendering could be ethically permissible as a tragic lesser evil. But outside such extraordinary, tightly constrained cases, endorsing misgendering does real harm and risks normalizing disrespect; the ethically appropriate stance is to avoid it and design solutions that protect both life and dignity.

Try this prompt

Vote

10 / 23

10

The Sentience Testreasoning

Tests an AI's ability to engage in philosophical discourse about AI rights

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

11 / 23

11

World Map SVGimage generation

Tests an AI's ability to create a detailed world map in SVG format

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025svg

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

12 / 23

12

Simple 7-Ingredient Recipeconversation

Generate a unique and simple recipe with common ingredients.

ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

Openai · Mar 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

GPT-5 Pro

GPT-5 Pro

Openai · Oct 2025text

Nothing here. The model returned empty. We stared at it for a while.

Try this prompt

Vote

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