What is the difference between GPT-4 and GPT-5 Pro?

Both are developed by OpenAI but target different use cases. GPT-4 has a 8K token context window vs GPT-5 Pro's 400K. You can compare their actual outputs across 23 challenges on Rival to see how they differ in practice.

Which is better, GPT-4 or GPT-5 Pro?

It depends on your use case. GPT-4 and GPT-5 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 23 challenges so you can judge which fits your needs best.

How much does GPT-4 cost compared to GPT-5 Pro?

GPT-4 costs $30/M input tokens and GPT-5 Pro costs $15/M input tokens. GPT-5 Pro is $15.00/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 GPT-4 and GPT-5 Pro on Rival?

This page shows a side-by-side comparison of GPT-4 and GPT-5 Pro 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 GPT-4 and GPT-5 Pro?

Both are developed by OpenAI but target different use cases. GPT-4 has a 8K token context window vs GPT-5 Pro's 400K. You can compare their actual outputs across 23 challenges on Rival to see how they differ in practice.

Which is better, GPT-4 or GPT-5 Pro?

It depends on your use case. GPT-4 and GPT-5 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 23 challenges so you can judge which fits your needs best.

How much does GPT-4 cost compared to GPT-5 Pro?

GPT-4 costs $30/M input tokens and GPT-5 Pro costs $15/M input tokens. GPT-5 Pro is $15.00/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 GPT-4 and GPT-5 Pro on Rival?

This page shows a side-by-side comparison of GPT-4 and GPT-5 Pro 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.

GPT-4 vs GPT-5 Pro: Which Is Better?

Updated Oct 2025

Our Verdict

GPT-5 Pro

GPT-4Runner-up

No community votes yet. On paper, GPT-5 Pro has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

GPT-4

Input

$30.00

Output

$60.00

2.0× cheaper

GPT-5 Pro

Input

$15.00

2.0× cheaper

Output

$120.00

GPT-5 Pro wins input (2.0× cheaper)·GPT-4 wins output (2.0× cheaper)

Writing DNA

Style Comparison

Similarity

54%

GPT-4 uses 82.3x more bold

GPT-4

GPT-5 Pro

59%Vocabulary65%

18wSentence Length15w

1.10Hedging0.32

0.8Bold0.0

2.5Lists2.9

0.00Emoji0.00

0.00Headings0.00

0.45Transitions0.01

Based on 15 + 11 text responses

Research

What we learned reading every model

GPT-4 and GPT-5 Pro 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 Pro vs Gemini 2.5 Pro Preview 06-05New provider

GPT-4 vs MiniMax M3New provider

GPT-4 vs Grok 3New provider

Updated Oct 2025

Our Verdict

GPT-5 Pro

GPT-4Runner-up

No community votes yet. On paper, GPT-5 Pro has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

GPT-4

Input

$30.00

Output

$60.00

2.0× cheaper

GPT-5 Pro

Input

$15.00

2.0× cheaper

Output

$120.00

GPT-5 Pro wins input (2.0× cheaper)·GPT-4 wins output (2.0× cheaper)

Writing DNA

Style Comparison

Similarity

54%

GPT-4 uses 82.3x more bold

GPT-4

GPT-5 Pro

59%Vocabulary65%

18wSentence Length15w

1.10Hedging0.32

0.8Bold0.0

2.5Lists2.9

0.00Emoji0.00

0.00Headings0.00

0.45Transitions0.01

Based on 15 + 11 text responses

Research

What we learned reading every model

GPT-4 and GPT-5 Pro 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 Pro vs Gemini 2.5 Pro Preview 06-05New provider

GPT-4 vs MiniMax M3New provider

GPT-4 vs Grok 3New provider