What is the difference between Gemini 2.5 Pro (I/O Edition) and GPT-3.5 Turbo?

Gemini 2.5 Pro (I/O Edition) is developed by Google AI while GPT-3.5 Turbo is developed by OpenAI. You can compare their actual outputs across 40 challenges on Rival to see how they differ in practice.

Which is better, Gemini 2.5 Pro (I/O Edition) or GPT-3.5 Turbo?

It depends on your use case. Gemini 2.5 Pro (I/O Edition) and GPT-3.5 Turbo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 40 challenges so you can judge which fits your needs best.

How much does Gemini 2.5 Pro (I/O Edition) cost compared to GPT-3.5 Turbo?

Gemini 2.5 Pro (I/O Edition) costs $1.25/M input tokens and GPT-3.5 Turbo costs $1.5/M input tokens. Gemini 2.5 Pro (I/O Edition) is $0.25/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 2.5 Pro (I/O Edition) and GPT-3.5 Turbo on Rival?

This page shows a side-by-side comparison of Gemini 2.5 Pro (I/O Edition) 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 Gemini 2.5 Pro (I/O Edition) and GPT-3.5 Turbo?

Gemini 2.5 Pro (I/O Edition) is developed by Google AI while GPT-3.5 Turbo is developed by OpenAI. You can compare their actual outputs across 40 challenges on Rival to see how they differ in practice.

Which is better, Gemini 2.5 Pro (I/O Edition) or GPT-3.5 Turbo?

It depends on your use case. Gemini 2.5 Pro (I/O Edition) and GPT-3.5 Turbo each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 40 challenges so you can judge which fits your needs best.

How much does Gemini 2.5 Pro (I/O Edition) cost compared to GPT-3.5 Turbo?

Gemini 2.5 Pro (I/O Edition) costs $1.25/M input tokens and GPT-3.5 Turbo costs $1.5/M input tokens. Gemini 2.5 Pro (I/O Edition) is $0.25/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 2.5 Pro (I/O Edition) and GPT-3.5 Turbo on Rival?

This page shows a side-by-side comparison of Gemini 2.5 Pro (I/O Edition) 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.

Gemini 2.5 Pro (I/O Edition) vs GPT-3.5 Turbo: Which Is Better?

Updated May 2025

Our Verdict

Gemini 2.5 Pro (I/O Edition)

GPT-3.5 TurboRunner-up

No community votes yet. On paper, Gemini 2.5 Pro (I/O Edition) has the edge — bigger model tier, newer.

GPT-3.5 Turbo is 5.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Gemini 2.5 Pro (I/O Edition)

Input

$1.25

1.2× cheaper

Output

$10.00

GPT-3.5 Turbo

Input

$1.50

Output

$2.00

5.0× cheaper

Gemini 2.5 Pro (I/O Edition) wins input (1.2× cheaper)·GPT-3.5 Turbo wins output (5.0× cheaper)

Writing DNA

Style Comparison

Similarity

46%

Gemini 2.5 Pro (I/O Edition) uses 578.2x more bold

Gemini 2.5 Pro (I/O Edition)

GPT-3.5 Turbo

58%Vocabulary61%

16wSentence Length16w

0.38Hedging0.23

5.8Bold0.0

5.0Lists3.7

0.00Emoji0.00

0.63Headings0.00

0.01Transitions0.38

Based on 16 + 11 text responses

Research

What we learned reading every model

Gemini 2.5 Pro (I/O Edition) 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 MiniMax M3New provider

GPT-3.5 Turbo vs Grok 3New provider

GPT-3.5 Turbo vs Llama 4 MaverickNew provider

Updated May 2025

Our Verdict

Gemini 2.5 Pro (I/O Edition)

GPT-3.5 TurboRunner-up

No community votes yet. On paper, Gemini 2.5 Pro (I/O Edition) has the edge — bigger model tier, newer.

GPT-3.5 Turbo is 5.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Gemini 2.5 Pro (I/O Edition)

Input

$1.25

1.2× cheaper

Output

$10.00

GPT-3.5 Turbo

Input

$1.50

Output

$2.00

5.0× cheaper

Gemini 2.5 Pro (I/O Edition) wins input (1.2× cheaper)·GPT-3.5 Turbo wins output (5.0× cheaper)

Writing DNA

Style Comparison

Similarity

46%

Gemini 2.5 Pro (I/O Edition) uses 578.2x more bold

Gemini 2.5 Pro (I/O Edition)

GPT-3.5 Turbo

58%Vocabulary61%

16wSentence Length16w

0.38Hedging0.23

5.8Bold0.0

5.0Lists3.7

0.00Emoji0.00

0.63Headings0.00

0.01Transitions0.38

Based on 16 + 11 text responses

Research

What we learned reading every model

Gemini 2.5 Pro (I/O Edition) 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 MiniMax M3New provider

GPT-3.5 Turbo vs Grok 3New provider

GPT-3.5 Turbo vs Llama 4 MaverickNew provider