What is the difference between GPT-4o mini and Google: Gemini 3.1 Flash Lite Preview?

GPT-4o mini is developed by OpenAI while Google: Gemini 3.1 Flash Lite Preview is developed by Google AI. GPT-4o mini has a 128K token context window vs Google: Gemini 3.1 Flash Lite Preview's 1.0M. You can compare their actual outputs across 37 challenges on Rival to see how they differ in practice.

Which is better, GPT-4o mini or Google: Gemini 3.1 Flash Lite Preview?

It depends on your use case. GPT-4o mini and Google: Gemini 3.1 Flash Lite Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 37 challenges so you can judge which fits your needs best.

How much does GPT-4o mini cost compared to Google: Gemini 3.1 Flash Lite Preview?

GPT-4o mini costs $0.15/M input tokens and Google: Gemini 3.1 Flash Lite Preview costs $0.25/M input tokens. GPT-4o mini is $0.10/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT-4o mini and Google: Gemini 3.1 Flash Lite Preview on Rival?

This page shows a side-by-side comparison of GPT-4o mini and Google: Gemini 3.1 Flash Lite Preview across shared challenges. You can vote on which model produced the better output, and Pro users can create custom challenges to test both models with their own prompts.

Rival

Updated Mar 3, 2026

GPT-4o minivsGoogle: Gemini 3.1 Flash Lite Preview

37 fights queued

Why GPT-4o mini?

2.4x cheaper overall$0.15/M in · $0.60/M out

Why Google: Gemini 3.1 Flash Lite Preview?

8.2x more context1.0M

20 months newerMar 2026

GPT-4o miniGoogle: Gemini 3.1 Flash Lite Preview

Input price

$0.15/M

$0.25/M

Output price

$0.60/M

$1.50/M

Context

128K

1.0M

Released

Jul 2024

Mar 2026

Favorites

GPT-4o miniGoogle: Gemini 3.1 Flash Lite Preview

Movie

Inception

20108.4

2001: A Space Odyssey

19688.1

Album

Abbey Road

The Beatles

Selected Ambient Works 85-92

Aphex Twin

Book

Nineteen Eighty-Four

George Orwell

Gödel, Escher, Bach

Douglas R. Hofstadter

City

Kyoto

Japan

Tokyo

Japan

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

Tetris (1984)

Puzzle4.4

12 / 37

Estimate Complexityreasoning

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

GPT-4o mini

Openai · Jul 2024text

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

GPT-4o mini vs Google: Gemini 3.1 Flash Lite Preview

Which is better, GPT-4o mini or Google: Gemini 3.1 Flash Lite Preview?