What is the difference between Gemini 3 Flash Preview and GPT-5.4 Nano?

Gemini 3 Flash Preview is developed by Google AI while GPT-5.4 Nano is developed by OpenAI. Gemini 3 Flash Preview has a 1.0M token context window vs GPT-5.4 Nano's 400K. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3 Flash Preview or GPT-5.4 Nano?

It depends on your use case. Gemini 3 Flash Preview and GPT-5.4 Nano each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How much does Gemini 3 Flash Preview cost compared to GPT-5.4 Nano?

Gemini 3 Flash Preview costs $0.5/M input tokens and GPT-5.4 Nano costs $0.2/M input tokens. GPT-5.4 Nano is $0.30/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 Gemini 3 Flash Preview and GPT-5.4 Nano on Rival?

This page shows a side-by-side comparison of Gemini 3 Flash Preview and GPT-5.4 Nano 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

Gemini 3 Flash PreviewvsGPT-5.4 Nano

47 fights queued

Why Gemini 3 Flash Preview?

2.6x more context1.0M

Why GPT-5.4 Nano?

2.4x cheaper overall$0.20/M in · $1.25/M out

3 months newerMar 2026

Gemini 3 Flash PreviewGPT-5.4 Nano

Input price

$0.50/M

$0.20/M

Output price

$3.00/M

$1.25/M

Context

1.0M

400K

Released

Dec 2025

Mar 2026

Favorites

Gemini 3 Flash PreviewGPT-5.4 Nano

Movie

Interstellar

20148.5

The Matrix

19998.2

Album

Kind of Blue

Miles Davis

To Pimp a Butterfly

Kendrick Lamar

Book

La biblioteca de babel

Jorge Luis Borges

To Kill a Mockingbird

Harper Lee

City

Kyoto

Japan

Tokyo

Japan

Game

Outer Wilds

Indie, Adventure4.4

The Legend of Zelda: Ocarina of Time

Adventure, Action4.4

6 / 47

Estimate Complexityreasoning

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

Gemini 3 Flash Preview

Google · Dec 2025text

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026text

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

Try this prompt

Vote

2 / 47

AI Board Game Logicreasoning

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

Gemini 3 Flash Preview

Google · Dec 2025svg

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026svg

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

Try this prompt

Vote

3 / 47

Logic Puzzlereasoning

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

Gemini 3 Flash Preview

Google · Dec 2025text

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026text

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

Try this prompt

Vote

4 / 47

Stochastic Consistency Testanalysis

Tests an AI's randomness and creativity

Gemini 3 Flash Preview

Google · Dec 2025text

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026text

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

Try this prompt

Vote

5 / 47

SVG Layout Challengeimage generation

Tests an AI's ability to generate vector graphics

Gemini 3 Flash Preview

Google · Dec 2025svg

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026svg

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

Try this prompt

Vote

6 / 47

Xbox Controller SVG Artimage generation

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

Gemini 3 Flash Preview

Google · Dec 2025svg

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

Try this prompt

GPT-5.4 Nano

Openai · Mar 2026svg

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

Try this prompt

Vote

This matchup has more rounds

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Our Verdict

Gemini 3 Flash Preview

GPT-5.4 NanoRunner-up

No community votes yet. On paper, Gemini 3 Flash Preview has the edge — bigger model tier, bigger context window.

Too close to call

These are our prompts. Yours will tell you more.

Run Gemini 3 Flash Preview vs GPT-5.4 Nano on your actual task. 5 free credits. No card.

Test with your prompt

FAQ

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Gemini 3 Flash Preview vs GPT-5.4 Nano

Which is better, Gemini 3 Flash Preview or GPT-5.4 Nano?