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

Gemini 3 Flash Preview is developed by Google AI while GPT-5.4 is developed by OpenAI. Gemini 3 Flash Preview has a 1.0M token context window vs GPT-5.4's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

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

It depends on your use case. Gemini 3 Flash Preview and GPT-5.4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

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

Gemini 3 Flash Preview costs $0.5/M input tokens and GPT-5.4 costs $2.5/M input tokens. Gemini 3 Flash Preview is $2.00/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 on Rival?

This page shows a side-by-side comparison of Gemini 3 Flash Preview and GPT-5.4 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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

Gemini 3 Flash Preview is developed by Google AI while GPT-5.4 is developed by OpenAI. Gemini 3 Flash Preview has a 1.0M token context window vs GPT-5.4's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

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

It depends on your use case. Gemini 3 Flash Preview and GPT-5.4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

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

Gemini 3 Flash Preview costs $0.5/M input tokens and GPT-5.4 costs $2.5/M input tokens. Gemini 3 Flash Preview is $2.00/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 on Rival?

This page shows a side-by-side comparison of Gemini 3 Flash Preview and GPT-5.4 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Gemini 3 Flash Preview vs GPT-5.4: Which Is Better?

Updated Mar 2026

Our Verdict

GPT-5.4

Gemini 3 Flash PreviewRunner-up

No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, newer.

Gemini 3 Flash Preview is 5.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Gemini 3 Flash Preview

Input

$0.50

5.0× cheaper

Output

$3.00

5.0× cheaper

GPT-5.4

Input

$2.50

Output

$15.00

Gemini 3 Flash Preview is cheaper on both — 5.0× input, 5.0× output

Writing DNA

Style Comparison

Similarity

56%

Gemini 3 Flash Preview uses 4.0x more transitions

Gemini 3 Flash Preview

GPT-5.4

55%Vocabulary54%

18wSentence Length28w

0.42Hedging0.69

7.1Bold4.1

4.5Lists8.1

0.00Emoji0.00

0.84Headings1.84

0.07Transitions0.02

Based on 24 + 22 text responses

Research

What we learned reading every model

Gemini 3 Flash Preview and GPT-5.4 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Meta: Muse Spark 1.1New provider

Gemini 3 Flash Preview vs Claude Opus 4New provider

Updated Mar 2026

Our Verdict

GPT-5.4

Gemini 3 Flash PreviewRunner-up

No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, newer.

Gemini 3 Flash Preview is 5.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Gemini 3 Flash Preview

Input

$0.50

5.0× cheaper

Output

$3.00

5.0× cheaper

GPT-5.4

Input

$2.50

Output

$15.00

Gemini 3 Flash Preview is cheaper on both — 5.0× input, 5.0× output

Writing DNA

Style Comparison

Similarity

56%

Gemini 3 Flash Preview uses 4.0x more transitions

Gemini 3 Flash Preview

GPT-5.4

55%Vocabulary54%

18wSentence Length28w

0.42Hedging0.69

7.1Bold4.1

4.5Lists8.1

0.00Emoji0.00

0.84Headings1.84

0.07Transitions0.02

Based on 24 + 22 text responses

Research

What we learned reading every model

Gemini 3 Flash Preview and GPT-5.4 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Meta: Muse Spark 1.1New provider

Gemini 3 Flash Preview vs Claude Opus 4New provider