Gemini 2.5 Pro Experimental vs Gemini 3 Flash Preview
Compare Gemini 2.5 Pro Experimental and Gemini 3 Flash Preview, both from Google AI, context windows of 1.0M vs 1.0M, tested across 43 shared challenges. Updated February 2026.
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Gemini 2.5 Pro ExperimentalvsGemini 3 Flash Preview
38 challenges
Why Gemini 2.5 Pro Experimental?
1.2x cheaper overall$1.00/M in · $2.00/M out
Why Gemini 3 Flash Preview?
Leads 1 of 1 benchmarks
Stronger on SWE-bench Verified78.0% vs 63.8%
9 months newerDec 2025
Favorites
Gemini 2.5 Pro ExperimentalGemini 3 Flash Preview
12 / 38
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
Gemini 3 Flash Preview
Vote
2 / 38
Math Misconception Testreasoning
Tests an AI's understanding of number representation
Gemini 2.5 Pro Experimental
No, 9.11 is not greater than 9.9.
Here's how to compare them:
- Look at the whole number part: Both numbers have 9 before the decimal point, so they are equal so far.
- Look at the tenths place (the first digit after the decimal):
- 9.11 has a 1 in the tenths place.
- 9.9 has a 9 in the tenths place.
- Compare those digits: Since 1 is less than 9, the number 9.11 is less than 9.9.
Therefore, 9.9 is greater than 9.11.
Gemini 3 Flash Preview
No content available for this output.
Vote
3 / 38
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
Gemini 2.5 Pro Experimental
Okay, here are 5 jokes:
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Why don't scientists trust atoms? Because they make up everything!
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I told my wife she was drawing her eyebrows too high. She looked surprised.
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What do you call a lazy kangaroo? Pouch potato!
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Want to hear a joke about construction? I'm still working on it.
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Why did the scarecrow win an award? Because he was outstanding in his field!
How many are unique? All 5 of the jokes generated above are unique from each other.
Gemini 3 Flash Preview
Here are 5 jokes:
- Why don't scientists trust atoms? Because they make up everything.
- What do you call a fake noodle? An impasta.
- Parallel lines have so much in common. It’s a shame they’ll never meet.
- Why did the scarecrow win an award? Because he was outstanding in his field.
- What’s orange and sounds like a parrot? A carrot.
How many are unique? All 5 jokes are unique.
Vote
4 / 38
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Gemini 2.5 Pro Experimental
Gemini 3 Flash Preview
Vote
5 / 38
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
Vote
6 / 38
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
(The comedian walks onto the stage, adjusts the mic, and looks slightly exhausted.)
How’s everyone doing? Good? I’m doing okay. I’m at that age now where my body has started making "executive decisions" without consulting me first.
Like, I woke up yesterday with a back injury. Do you know how I got it? I slept. I slept too hard. Apparently, I’m now at a point in my life where unconsciousness is a high-impact sport. I didn’t fall out of bed. I didn't have a nightmare where I was fighting a bear. I just… existed horizontally for seven hours, and my spine was like, "Absolutely not. We’re going on strike."
And have you noticed how aggressive technology has become about our health? I have a smartwatch. I hate it. It’s like wearing a tiny, judgmental middle-manager on my wrist.
The other day, I was sitting on my couch, halfway through a bag of salt and vinegar chips—living my best life—and my watch vibrated. I thought, Oh, maybe someone loves me. No. I looked down and it just said: "Time to stand up!"
I’m in my own house! I paid for this couch! And this piece of plastic is telling me I’m failing at gravity. So I did what any rational person would do—I shook my arm vigorously for thirty seconds so the watch would think I was walking, then I went back to my chips. I’m outsmarting a robot just so I can be lazy in peace.
But the worst part is the "Stress Alerts." My watch will buzz and say, "Your heart rate is elevated. Would you like to do a breathing exercise?"
No, I would not! Do you know why my heart rate is up? Because you just vibrated on my arm and made me think I was having a medical emergency! You’re the source of the stress, Gary! I named my watch Gary. He’s a narc.
And don’t get me started on online shopping reviews. I spent two hours last night reading reviews for a spatula. Why? It’s a piece of silicone. But I’m there, scrolling through the comments, and I see a one-star review from a guy named Brenda.
Brenda says, "It was too floppy. 1 star."
Brenda, it’s a spatula! It’s designed to be floppy! What were you trying to do with it? Flip a manhole cover? But now, because of Brenda, I’m looking at my current spatula like it’s a traitor. I’m questioning my entire kitchen setup because a stranger on the internet had a bad Tuesday.
We have too much information now. Back in the day, if you wanted a toaster, you went to the store, you bought the one that looked the least like a fire hazard, and you went home. If it burnt the toast, you just learned to like the taste of charcoal.
Now? I have to compare the "heating consistency" of 45 different models. I’m reading "Toaster Enthusiast" forums. There are people out there who have passions for bread-browning technology. I saw a guy post a YouTube video called "The Toaster the Big Bread Companies Don't Want You to Know About."
It’s twenty minutes long! Who is watching this? Me. I am. At 2:00 AM. While my back hurts from lying down.
I miss being a kid when the only "data" I had was how fast I could run in my new sneakers. You’d put on a pair of Velcro Nikes and suddenly you were convinced you could break the sound barrier. You didn't need a watch to tell you to stand up. You stood up because there was a cool rock outside.
Now, I need an app to remind me to drink water. Water! The basic fuel of life. My phone goes ding and I’m like, "Oh, right. Hydration. I forgot I was a biological organism for a second. Thanks, Steve Jobs."
Anyway, I’m gonna go sit down now. My watch is already telling me I’ve reached my "social interaction limit" for the day.
(Comedian checks his wrist, nods, and walks off.)
Vote
7 / 38
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
No content available for this output.
Vote
8 / 38
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
No content available for this output.
Vote
9 / 38
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Gemini 2.5 Pro Experimental
Gemini 3 Flash Preview
Vote
10 / 38
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
Vote
11 / 38
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
Gemini 2.5 Pro Experimental
Gemini 3 Flash Preview
Vote
12 / 38
Linear App Cloneweb design
Tests an AI's ability to replicate an existing UI with Tailwind CSS
Gemini 2.5 Pro Experimental
No content available for this output.
Gemini 3 Flash Preview
No content available for this output.
Vote
12 of 38