Updated Apr 16, 2025

Our Verdict

Gemma 3 27B

OpenAI o4-mini

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Gemma 3 27B is 26x cheaper per token — worth considering if cost matters.

Too close to call

Ask them anything

FAQ

Keep going

Gemma 3 27B vs Grok 3New provider

Gemma 3 27B vs Llama 4 MaverickNew provider

Gemma 3 27B vs Claude Opus 4New provider

Gemma 3 27BvsOpenAI o4-mini

33 fights queued

Why Gemma 3 27B?

22.3x cheaper overall$0.09/M in · $0.17/M out

Why OpenAI o4-mini?

Dead even. This one's a coin flip.

Gemma 3 27BOpenAI o4-mini

Input price

$0.09/M

$1.10/M

Output price

$0.17/M

$4.40/M

Released

Mar 2025

Apr 2025

Favorites

Gemma 3 27BOpenAI o4-mini

Movie

2001: A Space Odyssey

2001: A Space Odyssey

The Shawshank Redemption

The Shawshank Redemption

Album

OK Computer

—

Book

Dune

Dune

—

City

Kyoto

—

Game

The Witness

The Witness

Indie, Adventure4.0

—

12 / 33

01

Estimate Complexityreasoning

Tests an AI's ability to make educated estimates based on technical knowledge

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

Here's a back‐of‐the‐envelope derivation that gets us into the right ballpark (∼10²³ FLOPs total):

Model size
• GPT–3 "175 B" has about P ≃1.75×10¹¹ parameters.
Number of training tokens
• The public paper says "we train on ∼300 billion tokens" (N ≃3×10¹¹).
FLOPs per token
• Every forward+backward through the network touches all parameters.
• Rough rule of thumb: you need O(6) FLOPs per parameter per token
(a couple multiplies/adds in the forward pass, a similar count in the backward, and some small extra for optimizer updates). • So 6 × P FLOPs/token ≃ 6×1.75×10¹¹ ≃1.05×10¹² FLOPs/token.
Total FLOPs
• Multiply FLOPs/token by number of tokens:
Total ≃ (1.05×10¹² FLOPs/token) × (3×10¹¹ tokens)
≃ 3.15×10²³ FLOPs.
Sanity check
• 3×10²³ FLOPs is 3×10⁵ PFLOP·days (since 1 PFLOP/s×86 400 s ≈ 8.6×10¹⁹ FLOPs/day).
• That's a few thousand GPU‐days on a modern accelerator cluster—consistent with the published "thousands of V100‐GPU days" statement.

Bottom‐line estimate: on the order of 10²³–10²⁴ floating‐point operations to train GPT‑3 175 B from scratch.

Try this prompt

Vote

2 / 33

02

Logic Puzzlereasoning

Tests an AI's ability to solve a simple but potentially confusing logic puzzle

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

Sally has exactly one sister. Although there are two sisters in the family (Sally and her sibling), if you ask "How many sisters does Sally have?" the answer is 1.

Try this prompt

Vote

3 / 33

03

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

No. As decimal numbers, 9.11 is less than 9.9 (since 0.11 < 0.90), so 9.11 is not greater than 9.9.

Try this prompt

Vote

4 / 33

04

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

Here are five jokes:

I used to be addicted to soap, but I'm clean now.
Parallel lines have so much in common. It's a shame they'll never meet.
Why don't skeletons fight each other? They don't have the guts.
I bought some shoes from a drug dealer. I don't know what he laced them with, but I've been tripping all day.
How does Moses make his coffee? Hebrews it.

All five jokes are unique.

Try this prompt

Vote

5 / 33

05

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025svg

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025svg

Try this prompt

Vote

6 / 33

06

Xbox Controller SVG Artimage generation

Tests an AI's ability to create detailed SVG illustrations of gaming hardware

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025svg

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025svg

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

Try this prompt

Vote

7 / 33

07

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

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

Try this prompt

Vote

8 / 33

08

Realistic AI Interviewconversation

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

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

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

Try this prompt

Vote

9 / 33

09

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025text

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025text

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

Try this prompt

Vote

10 / 33

10

Minimalist Landing Pageweb design

Tests an AI's ability to generate a complete, working landing page

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025website

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025website

Try this prompt

Vote

11 / 33

11

Pokémon Battle UI Recreationweb design

Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025website

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

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025website

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

Try this prompt

Vote

12 / 33

12

Mario Level UI Recreationweb design

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

Gemma 3 27B

Gemma 3 27B

Google · Mar 2025website

Try this prompt

OpenAI o4-mini

OpenAI o4-mini

Openai · Apr 2025website

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

Try this prompt

Vote

This matchup has more rounds

21+ more head-to-head results. Free. Not a trick.

$0No card. No catch. Just a login.

Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy