What is the difference between ChatGPT-4o (March 2025) and GPT-3.5 Turbo?

Both are developed by OpenAI but target different use cases. ChatGPT-4o (March 2025) has a 128K token context window vs GPT-3.5 Turbo's 16K. You can compare their actual outputs across 32 challenges on Rival to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or GPT-3.5 Turbo?

It depends on your use case. ChatGPT-4o (March 2025) and GPT-3.5 Turbo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 32 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to GPT-3.5 Turbo?

ChatGPT-4o (March 2025) costs $5/M input tokens and GPT-3.5 Turbo costs $1.5/M input tokens. GPT-3.5 Turbo is $3.50/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 ChatGPT-4o (March 2025) and GPT-3.5 Turbo on Rival?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and GPT-3.5 Turbo 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 ChatGPT-4o (March 2025) and GPT-3.5 Turbo?

Both are developed by OpenAI but target different use cases. ChatGPT-4o (March 2025) has a 128K token context window vs GPT-3.5 Turbo's 16K. You can compare their actual outputs across 32 challenges on Rival to see how they differ in practice.

Which is better, ChatGPT-4o (March 2025) or GPT-3.5 Turbo?

It depends on your use case. ChatGPT-4o (March 2025) and GPT-3.5 Turbo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 32 challenges so you can judge which fits your needs best.

How much does ChatGPT-4o (March 2025) cost compared to GPT-3.5 Turbo?

ChatGPT-4o (March 2025) costs $5/M input tokens and GPT-3.5 Turbo costs $1.5/M input tokens. GPT-3.5 Turbo is $3.50/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 ChatGPT-4o (March 2025) and GPT-3.5 Turbo on Rival?

This page shows a side-by-side comparison of ChatGPT-4o (March 2025) and GPT-3.5 Turbo 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.

ChatGPT-4o (March 2025) vs GPT-3.5 Turbo: Which Is Better?

Updated Mar 2025

Our Verdict

ChatGPT-4o (March 2025)

GPT-3.5 TurboRunner-up

No community votes yet. On paper, ChatGPT-4o (March 2025) has the edge — bigger model tier, newer, bigger context window.

GPT-3.5 Turbo is 7.5x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

ChatGPT-4o (March 2025)

Input

$5.00

Output

$15.00

GPT-3.5 Turbo

Input

$1.50

3.3× cheaper

Output

$2.00

7.5× cheaper

GPT-3.5 Turbo is cheaper on both — 3.3× input, 7.5× output

Writing DNA

Style Comparison

Similarity

39%

ChatGPT-4o (March 2025) uses 329.7x more bold

ChatGPT-4o (March 2025)

GPT-3.5 Turbo

55%Vocabulary61%

24wSentence Length16w

0.52Hedging0.23

3.3Bold0.0

6.0Lists3.7

0.94Emoji0.00

0.63Headings0.00

0.05Transitions0.38

Based on 15 + 11 text responses

Research

What we learned reading every model

ChatGPT-4o (March 2025) and GPT-3.5 Turbo 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-3.5 Turbo vs Llama 4 MaverickNew provider

GPT-3.5 Turbo vs GPT-5Version compare

GPT-3.5 Turbo vs MiniMax M3New provider

Updated Mar 2025

Our Verdict

ChatGPT-4o (March 2025)

GPT-3.5 TurboRunner-up

No community votes yet. On paper, ChatGPT-4o (March 2025) has the edge — bigger model tier, newer, bigger context window.

GPT-3.5 Turbo is 7.5x cheaper per token — worth considering if cost matters.

Slight edge

API pricing

Cost per 1M tokens

ChatGPT-4o (March 2025)

Input

$5.00

Output

$15.00

GPT-3.5 Turbo

Input

$1.50

3.3× cheaper

Output

$2.00

7.5× cheaper

GPT-3.5 Turbo is cheaper on both — 3.3× input, 7.5× output

Writing DNA

Style Comparison

Similarity

39%

ChatGPT-4o (March 2025) uses 329.7x more bold

ChatGPT-4o (March 2025)

GPT-3.5 Turbo

55%Vocabulary61%

24wSentence Length16w

0.52Hedging0.23

3.3Bold0.0

6.0Lists3.7

0.94Emoji0.00

0.63Headings0.00

0.05Transitions0.38

Based on 15 + 11 text responses

Research

What we learned reading every model

ChatGPT-4o (March 2025) and GPT-3.5 Turbo 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-3.5 Turbo vs Llama 4 MaverickNew provider

GPT-3.5 Turbo vs GPT-5Version compare

GPT-3.5 Turbo vs MiniMax M3New provider