Compare OpenAI Codex Mini and OpenAI o3, both from OpenAI, in 1 community votes, openai o3 wins 100% of head-to-head duels, tested across 10 shared challenges. Updated April 2026.
OpenAI o3 is the better choice overall, winning 100% of 1 blind community votes on Rival. OpenAI Codex Mini costs $1.5/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
OpenAI Codex Mini is made by openai while OpenAI o3 is from openai. On pricing, OpenAI Codex Mini costs $1.5/M input tokens vs $10/M for OpenAI o3. In community voting, In 1 community votes, OpenAI o3 wins 100% of head-to-head duels.
In 1 community votes, OpenAI o3 wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.
Pick OpenAI o3. In 1 blind votes, OpenAI o3 wins 100% of the time. That's not luck.
OpenAI Codex Mini is 6.7x cheaper per token — worth considering if cost matters.
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.
10 fights queued
Tests an AI's randomness and creativity
Sure—here are five jokes:
All five are distinct. Number of unique jokes: 5.
Here are five jokes:
How many of these jokes are unique?
All five are distinct from one another, so the answer is 5.
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
[Comedian walks onstage]
Hey, everyone! Great to see you all tonight. I'm Jamie—if you thought that intro was enthusiastic, you should've seen me when I realized this place has Wi-Fi.
Seriously, though, I love stand-up. For one thing, I get to share all the weird stuff I secretly do in my apartment… and instead of calling the cops, you guys just laugh. That's high-quality entertainment right there.
So, the other day I'm in the self-checkout lane at the grocery store—because I'm the kind of person who's thrilled by the thought of scanning my own kale. Of course, there's always that one person holding up everyone behind them because they can't figure out how to scan a cucumber. Meanwhile, the machine flashes: "UNEXPECTED ITEM IN BAGGING AREA." It's staring at me like it's personally offended that I tried to buy almonds in instead of potato chips. I'm over here trying to reason with it:
"Look, buddy, I'm just trying to eat slightly healthier. Isn't that what we all want?"
Then it asks me, "Do you want a produce discount?" The only discount I want is one that lets me leave this line five minutes ago. I press "No," and the machine glares at me with a red light and calls for help like I'm smuggling avocados under my shirt.
My phone has ruined me. I can't have any thought longer than three seconds without Instagram interrupting me. I'll be in the shower—fresh shampoo, head full of suds—and in my brain:
"Did my neighbor's cat post another selfie? I need to check."
Fifteen minutes later I'm drying off, scrolling through cats wearing sweaters. Why are cats always more photogenic than me? They don't even try. They're just like, "You feed me, you click 'Like.'" I wish I could have a boundary like that—"Hey, you gave me pizza once; you can go ahead and like my vacation photos."
Anyone here stuck in a group chat you can't escape? There's always that one friend who forwards the exact same video one hundred times, and everybody else thinks it's the highlight of their week. I just mute my phone like it's an ex sending memes at 2 a.m. Then I wake up at dawn, bleary-eyed, thinking, "What did I miss?" I open my phone—and it's Bob celebrating his new air-fryer chicken recipe for the fifth time. Meanwhile, I burned my eggs so badly this morning that my smoke alarm filed a restraining order against me.
I decided to get in shape. I downloaded one of those workout apps promising "six-pack abs in six weeks." After day one, I collected six new excuses why I can't work out:
Yesterday I finally ran so hard I passed out. When I came to, my neighbor was standing over me yelling, "You know you're not supposed to lean on lampposts, right?" I told him, "As soon as lampposts start offering aerodynamic support, I'll consider trusting them."
Alright, folks, that's my time. If you ever feel judged by a machine or betrayed by a group chat, come find me—I'll be the one in the self-checkout line, trying to convince a barcode scanner that kale is, in fact, a food. Thanks so much—you've been awesome!
(Spotlight comes up, mic squeals once.)
Hey everyone! Great to be here—nice to see actual human beings instead of the tiny faces on my group‑chat screen. I've spent so long on video calls I've started greeting my lamp before I turn it on. "Hey Karen, love that glow, girl."
So, I finally bought one of those smart speakers. I thought it would make me feel like Iron Man. Instead I feel like I adopted a very unmotivated intern. I'm like, "Play upbeat music," and it replies, "Here's a three‑hour podcast on the history of spoons." I asked it to remind me to work out; it waited until 11:59 p.m. and whispered, "You up?" My smart speaker is basically every guy I dated in college.
Speaking of relationships, I recently tried a dating app that lets you record a short audio bio. That's great, because if there's one thing more awkward than texting a stranger, it's leaving them a voicemail. Some guy said, "I'm looking for someone spontaneous." So I spontaneously unmatched him. Then I matched with a guy who listed his hobbies as "finance" and "manifesting." Congratulations, sir, you just invented prayer with extra steps.
Let's talk wellness culture. Everyone's drinking celery juice now. Celery is 95 percent water and 5 percent sadness. People swear it detoxes you. From what, joy? I tried a juice cleanse once. Day one, I'm like, "I feel so light!" Day two, I'm Googling the legal definition of cannibalism while staring at my roommate. Day three, I'd trade my social security number for a cracker.
I joined a yoga class to "center myself." First pose, the instructor says, "Just let your thoughts drift away." Great, because the only thought I have is, "Did I leave the stove on?" By the time I remember I don't even own a stove, class is over. The instructor thanks us for "sharing our practice." Ma'am, if you saw what went on in my head, you'd call an exorcist, not thank me.
Has anyone tried online grocery delivery? The substitutions are wild. I ordered quinoa; they sent me birdseed and a note that said, "Hope this works!" I asked for toilet paper; they delivered a single roll labeled "party streamer." At this point I'm convinced the store is just a guy named Todd making runs to a gas station. Now airlines are weighing passengers to "optimize fuel efficiency." Fantastic. Nothing like stepping on a scale in front of 150 strangers so the plane can save twelve dollars on kerosene. Watch, they'll start charging for emotional baggage: "Ma'am, that childhood trauma is gonna be an extra forty‑five bucks."
Before I go, quick life tip: when your phone tells you your screen time was up 30 percent last week, don't feel guilty. Just flip it around. "Wow, I was SO popular my phone worried about me." Self‑care is all branding, folks.
You've been awesome—give it up for yourselves, and remember, if life hands you lemons, ask for the receipt and buy wine instead. Good night!
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
We can't display this one. It's not us. Well... it might be us.
The model was asked for a web page. It produced something else. We're not going to define what.
<style>
/* --- RESET & GENERAL ---------------------------------------------------- */
*{box-sizing:border-box;padding:0;margin:0;font-family:'Courier New',monospace}
body{display:flex;align-items:center;justify-content:center;height:100vh;background:#222;color:#000}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit}
/* --- "GAME BOY" SHELL --------------------------------------------------- */
#gameboy{
width:480px;max-width:90vw;aspect-ratio:1/0.8;background:#7aab6f;
padding:18px;border-radius:12px;border:4px solid #3d6841;
box-shadow:0 0 0 6px #1b2f1f inset,0 8px 16px rgba(0,0,0,.6)
}
/* --- LCD SCREEN --------------------------------------------------------- */
#lcd{
width:100%;height:100%;background:#a9d84b;
border:4px solid #3d6841;border-radius:4px;
position:relative;overflow:hidden
}
/* --- SPRITE ZONES ------------------------------------------------------- */
#enemySprite,#playerSprite{
position:absolute;font-size:3.2rem;user-select:none;
filter:drop-shadow(0 2px 0 rgba(0,0,0,.4))
}
#enemySprite{top:8%;right:8%}
#playerSprite{bottom:35%;left:8%}
/* --- STATUS BOXES ------------------------------------------------------- */
.status{
position:absolute;width:45%;border:2px solid #000;background:#dfe3d4;
padding:4px;font-size:.8rem
}
#enemyStatus{top:4%;left:4%}
#playerStatus{bottom:43%;right:4%}
.nameLv{display:flex;justify-content:space-between}
.bar{
height:6px;background:#666;margin-top:2px;overflow:hidden
}
.gauge{
height:100%;background:#34c039;width:100%;transition:width .3s
}
.hpText{text-align:right;font-size:.7rem}
/* --- TEXT & MENU BOX ---------------------------------------------------- */
#textbox{
position:absolute;bottom:0;left:0;width:100%;height:36%;
background:#dfe3d4;border-top:4px solid #000;
padding:6px;display:flex;flex-direction:column;justify-content:space-between
}
#text{
flex:1;font-size:.9rem;white-space:pre-line;line-height:1.2;
overflow:hidden
}
#menu{
display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:4px
}
#menu button{
padding:4px;background:#a9d84b;border:2px solid #000;border-radius:2px
}
#menu button:disabled{opacity:.4;cursor:default}
/* --- TYPE‑WRITER CURSOR ------------------------------------------------- */
#cursor{
display:inline-block;width:6px;background:#000;animation:blink 1s steps(1) infinite
}
@keyframes blink{50%{opacity:0}}
</style>
</head>
<body>
<div id="gameboy">
<div id="lcd">
<div id="enemySprite">🔥</div>
<div id="playerSprite">⚡</div>
<div id="enemyStatus" class="status">
<div class="nameLv"><span id="enemyName">CHARMANDER</span><span>Lv5</span></div>
<div class="bar"><div id="enemyHPBar" class="gauge"></div></div>
<div id="enemyHpText" class="hpText"></div>
</div>
<div id="playerStatus" class="status">
<div class="nameLv"><span id="playerName">PIKACHU</span><span>Lv5</span></div>
<div class="bar"><div id="playerHPBar" class="gauge"></div></div>
<div id="playerHpText" class="hpText"></div>
</div>
<div id="textbox">
<div id="text"></div>
<div id="menu"></div>
</div>
</div>
</div>
<script>
/* ---------------------------------------------------------------------
Tiny Pokémon battle engine – just enough for nostalgia!
--------------------------------------------------------------------- */
const player = {
name:"Pikachu",sprite:"⚡",level:5,maxHp:35,hp:35,
moves:[
{name:"Thunderbolt",power:25},
{name:"Quick Attack",power:12},
{name:"Tail Whip",power:0},
{name:"Growl",power:0}
]
};
const enemy = {
name:"Charmander",sprite:"🔥",level:5,maxHp:30,hp:30,
moves:[
{name:"Ember",power:15},
{name:"Scratch",power:10}
]
};
const textEl = document.getElementById("text");
const menuEl = document.getElementById("menu");
const cursor = document.createElement("span");
cursor.id="cursor";
cursor.textContent=" ";
document.getElementById("enemySprite").textContent = enemy.sprite;
document.getElementById("playerSprite").textContent = player.sprite;
function updateBars(){
document.getElementById("playerHpText").textContent = 'HP: ' + player.hp + '/' + player.maxHp;
document.getElementById("enemyHpText").textContent = 'HP: ' + enemy.hp + '/' + enemy.maxHp;
document.getElementById("playerHPBar").style.width = '' + player.hp/player.maxHp*100 + '%';
document.getElementById("enemyHPBar").style.width = '' + enemy.hp/enemy.maxHp*100 + '%';
}
updateBars();
/* ---- Text‑box Typewriter -------------------------------------------- */
function showText(msg, cb){
menuEl.innerHTML="";
textEl.innerHTML="";
let i=0;
textEl.appendChild(cursor);
const speed=25;
const interval = setInterval(()=>{
if(i<msg.length){
cursor.before(msg[i++]);
}else{
clearInterval(interval);
cursor.remove();
setTimeout(cb,300);
}
},speed);
}
/* ---- Menu helpers --------------------------------------------------- */
function mainMenu(){
menuEl.innerHTML="";
const options=["FIGHT","BAG","POKÉMON","RUN"];
options.forEach((opt,idx)=>{
const b=document.createElement("button");
b.textContent=opt;
b.onclick=()=>{
if(opt==="FIGHT") moveMenu();
else showText(opt + ' is not implemented yet!',playerTurn);
};
if(idx>1) b.disabled=true; // keep only FIGHT for real.
menuEl.appendChild(b);
});
}
function moveMenu(){
menuEl.innerHTML="";
player.moves.forEach((m,idx)=>{
const b=document.createElement("button");
b.textContent=m.name;
b.onclick=()=>chooseMove(idx);
menuEl.appendChild(b);
});
}
function chooseMove(idx){
const move=player.moves[idx];
if(move.power===0){
showText(player.name + ' used ' + move.name + '!
But nothing happened…',enemyTurn);
return;
}
const dmg = rand(move.power/2,move.power);
enemy.hp=Math.max(0,enemy.hp-dmg);
updateBars();
showText(player.name + ' used ' + move.name + '!
It did ' + dmg + ' damage!',()=>{
if(enemy.hp===0){
showText(enemy.name + ' fainted!
You win!',()=>{
menuEl.innerHTML="";
});
}else{
enemyTurn();
}
});
}
function enemyTurn(){
const move = enemy.moves[rand(0, enemy.moves.length-1)];
const dmg = rand(move.power/2,move.power);
player.hp = Math.max(0, player.hp-dmg);
updateBars();
showText(enemy.name + ' used ' + move.name + '!
' + dmg + ' damage to ' + player.name + '!',()=>{
if(player.hp===0){
showText(player.name + ' fainted!
You blacked out…',()=>menuEl.innerHTML="");
}else{
playerTurn();
}
});
}
function playerTurn(){
showText('What will ' + player.name + ' do?',mainMenu);
}
/* ---- Utility --------------------------------------------------------- */
function rand(min,max){ // inclusive int
return Math.floor(Math.random()*(max-min+1))+min;
}
/* ---- START THE BATTLE ------------------------------------------------- */
showText('Wild ' + enemy.name + ' appeared!',()=>{
showText(player.name + ', I choose you!',playerTurn);
});
</script>
Tests an AI's ability to create interactive web elements
Tests an AI's ability to create a detailed world map in SVG format
Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.
Generate SVG art of a randomly chosen animal in a setting of its choosing.
Recreate a classic, retro, macOS Desktop UI. Make it interactive and nostalgic, make it as interactive as you can, you can be creative. Feel free to showcase your skills. The entire application must be a single-page self-contained HTML file.