What is the difference between GPT-5.4 Mini and Gemini 2.5 Pro Preview 06-05?

GPT-5.4 Mini is developed by OpenAI while Gemini 2.5 Pro Preview 06-05 is developed by Google AI. GPT-5.4 Mini has a 400K token context window vs Gemini 2.5 Pro Preview 06-05's 1.0M. You can compare their actual outputs across 38 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 Mini or Gemini 2.5 Pro Preview 06-05?

It depends on your use case. GPT-5.4 Mini and Gemini 2.5 Pro Preview 06-05 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 38 challenges so you can judge which fits your needs best.

How much does GPT-5.4 Mini cost compared to Gemini 2.5 Pro Preview 06-05?

GPT-5.4 Mini costs $0.75/M input tokens and Gemini 2.5 Pro Preview 06-05 costs $1.25/M input tokens. GPT-5.4 Mini is $0.50/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-5.4 Mini and Gemini 2.5 Pro Preview 06-05 on Rival?

This page shows a side-by-side comparison of GPT-5.4 Mini and Gemini 2.5 Pro Preview 06-05 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 17, 2026

GPT-5.4 MinivsGemini 2.5 Pro Preview 06-05

38 fights queued

Why GPT-5.4 Mini?

2.2x cheaper overall$0.75/M in · $4.50/M out

10 months newerMar 2026

Why Gemini 2.5 Pro Preview 06-05?

2.6x more context1.0M

GPT-5.4 MiniGemini 2.5 Pro Preview 06-05

Input price

$0.75/M

$1.25/M

Output price

$4.50/M

$10.00/M

Context

400K

1.0M

Released

Mar 2026

Jun 2025

Favorites

GPT-5.4 MiniGemini 2.5 Pro Preview 06-05

Movie

The Godfather

19728.7

200

2025

Album

Kid A

Radiohead

THE

tricot

Book

Pride and Prejudice

Jane Austen

The Hitch Hiker's Guide to the Galaxy

Douglas Adams

City

Kyoto

Japan

Kyoto

Japan

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

Portal

Action, Puzzle4.5

6 / 38

Estimate Complexityreasoning

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

GPT-5.4 Mini

Openai · Mar 2026text

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025text

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

Try this prompt

Vote

2 / 38

AI Board Game Logicreasoning

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

GPT-5.4 Mini

Openai · Mar 2026svg

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025svg

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

Try this prompt

Vote

3 / 38

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

GPT-5.4 Mini

Openai · Mar 2026text

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025text

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

Try this prompt

Vote

4 / 38

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

GPT-5.4 Mini

Openai · Mar 2026svg

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025svg

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

Try this prompt

Vote

5 / 38

Xbox Controller SVG Artimage generation

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

GPT-5.4 Mini

Openai · Mar 2026svg

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025svg

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

Try this prompt

Vote

6 / 38

Generate a Stand-Up Routineconversation

Tests an AI's humor and creative writing ability

GPT-5.4 Mini

Openai · Mar 2026text

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

Try this prompt

Gemini 2.5 Pro Preview 06-05

Google · Jun 2025text

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

Try this prompt

Vote

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Our Verdict

Gemini 2.5 Pro Preview 06-05

GPT-5.4 MiniRunner-up

No community votes yet. On paper, Gemini 2.5 Pro Preview 06-05 has the edge — bigger model tier, bigger context window.

Too close to call

These are our prompts. Yours will tell you more.

Run GPT-5.4 Mini vs Gemini 2.5 Pro Preview 06-05 on your actual task. 5 free credits. No card.

Test with your prompt

FAQ

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GPT-5.4 Mini vs Gemini 2.5 Pro Preview 06-05

Which is better, GPT-5.4 Mini or Gemini 2.5 Pro Preview 06-05?