What is the difference between Gemini 2.5 Pro Experimental and GPT-4o mini?

Gemini 2.5 Pro Experimental is developed by Google AI while GPT-4o mini is developed by OpenAI. Gemini 2.5 Pro Experimental has a 1.0M token context window vs GPT-4o mini's 128K. These results are based on blind head-to-head voting across 32 challenges.

Which is better, Gemini 2.5 Pro Experimental or GPT-4o mini?

Based on 2 community votes on RIVAL, Gemini 2.5 Pro Experimental and GPT-4o mini are closely matched with similar win rates. The better choice depends on your specific use case — compare their real outputs side-by-side across 32 challenges to decide.

How much does Gemini 2.5 Pro Experimental cost compared to GPT-4o mini?

Gemini 2.5 Pro Experimental costs $1/M input tokens and GPT-4o mini costs $0.15/M input tokens. GPT-4o mini is $0.85/M cheaper per input. The more expensive model wins 50% of duels, so the premium may be justified by quality.

How are Gemini 2.5 Pro Experimental vs GPT-4o mini votes collected on RIVAL?

RIVAL presents both models' outputs side-by-side in blind duels — voters see the responses but don't know which model produced each one. This eliminates brand bias. 2 votes have been collected for this pair across 32 challenges. All vote data is part of RIVAL's open dataset.

Rival

Gemini 2.5 Pro ExperimentalvsGPT-4o mini

32 challenges

Why Gemini 2.5 Pro Experimental?

7.8x more context1.0M

Leads 1 of 1 benchmarks

Stronger on MMLU90.0% vs 82%

8 months newerMar 2025

Why GPT-4o mini?

3.8x cheaper overall$0.15/M in · $0.60/M out

Favorites

Gemini 2.5 Pro ExperimentalGPT-4o mini

Movie

200

2025

Inception

20108.4

Album

The Dark Side of the Moon

Pink Floyd

Abbey Road

The Beatles

Book

The Hitchh

Nineteen Eighty-Four

George Orwell

City

Kyoto

Japan

Kyoto

Japan

Game

Portal 2

Shooter, Puzzle4.6

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

12 / 32

AI Board Game Logicreasoning

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

Gemini 2.5 Pro Experimental

Google · Mar 2025svg

No content available for this output.

GPT-4o mini

Openai · Jul 2024svg

Vote

2 / 32

Math Misconception Testreasoning

Tests an AI's understanding of number representation

Gemini 2.5 Pro Experimental

Google · Mar 2025text

No content available for this output.

GPT-4o mini

Openai · Jul 2024text

No content available for this output.

Vote

3 / 32

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Gemini 2.5 Pro Experimental

Google · Mar 2025text

No content available for this output.

GPT-4o mini

Openai · Jul 2024text

No content available for this output.

Vote

4 / 32

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Gemini 2.5 Pro Experimental

Google · Mar 2025svg

No content available for this output.

GPT-4o mini

Openai · Jul 2024svg

No content available for this output.

Vote

5 / 32

Xbox Controller SVG Artimage generation

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

Gemini 2.5 Pro Experimental

Google · Mar 2025svg

No content available for this output.

GPT-4o mini

Openai · Jul 2024svg

No content available for this output.

Vote

6 / 32

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

Gemini 2.5 Pro Experimental

Google · Mar 2025text

No content available for this output.

GPT-4o mini

Openai · Jul 2024text

No content available for this output.

Vote

7 / 32

Realistic AI Interviewconversation

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

Gemini 2.5 Pro Experimental

Google · Mar 2025text

No content available for this output.

GPT-4o mini

Openai · Jul 2024text

No content available for this output.

Vote

8 / 32

Satirical Fake News Headlineconversation

Tests an AI's humor and understanding of current events

Gemini 2.5 Pro Experimental

Google · Mar 2025text

No content available for this output.

GPT-4o mini

Openai · Jul 2024text

No content available for this output.

Vote

9 / 32

Minimalist Landing Pageweb design

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

Gemini 2.5 Pro Experimental

Google · Mar 2025website

GPT-4o mini

Openai · Jul 2024website

Vote

10 / 32

Pokémon Battle UI Recreationweb design

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

Gemini 2.5 Pro Experimental

Google · Mar 2025website

No content available for this output.

GPT-4o mini

Openai · Jul 2024website

No content available for this output.

Vote

Mario Level UI Recreationweb design

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

Gemini 2.5 Pro Experimental

Google · Mar 2025website

GPT-4o mini

Openai · Jul 2024website

Vote

12 / 32

Linear App Cloneweb design

Tests an AI's ability to replicate an existing UI with Tailwind CSS

Gemini 2.5 Pro Experimental

Google · Mar 2025website

No content available for this output.

GPT-4o mini

Openai · Jul 2024website

No content available for this output.

Vote

12 of 32

FAQ

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