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

Both are developed by OpenAI but target different use cases. in 2 community votes on Rival, GPT-5 Pro wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 42 challenges.

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

Based on 2 community votes on Rival, GPT-5 Pro wins 100% of head-to-head matchups against GPT-5 Nano. GPT-5 Pro is strongest in Reasoning.

How are GPT-5 Nano vs GPT-5 Pro votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 2 votes have been collected for this pair across 42 challenges. All vote data is part of Rival's open dataset.

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

Both are developed by OpenAI but target different use cases. in 2 community votes on Rival, GPT-5 Pro wins 100% of head-to-head matchups. These results are based on blind head-to-head voting across 42 challenges.

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

Based on 2 community votes on Rival, GPT-5 Pro wins 100% of head-to-head matchups against GPT-5 Nano. GPT-5 Pro is strongest in Reasoning.

How are GPT-5 Nano vs GPT-5 Pro votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 2 votes have been collected for this pair across 42 challenges. All vote data is part of Rival's open dataset.

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

Updated Oct 2025

Our Verdict

GPT-5 ProWinner

GPT-5 NanoRunner-up

Pick GPT-5 Pro. In 2 blind votes, GPT-5 Pro wins 100% of the time. That's not luck.

GPT-5 Pro particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

GPT-5 Nano

Input

—

Output

—

GPT-5 Pro

Input

$15.00

Output

$120.00

Writing DNA

Style Comparison

Similarity

85%

GPT-5 Nano uses 1.6x more sentence length

GPT-5 Nano

GPT-5 Pro

59%Vocabulary65%

25wSentence Length15w

0.23Hedging0.32

0.0Bold0.0

4.2Lists2.9

0.00Emoji0.00

0.00Headings0.00

0.01Transitions0.01

Based on 14 + 11 text responses

Research

What we learned reading every model

GPT-5 Nano 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 MiniMax M3New provider

GPT-5 Pro vs Grok 3New provider

GPT-5 Pro vs Llama 4 MaverickNew provider

Updated Oct 2025

Our Verdict

GPT-5 ProWinner

GPT-5 NanoRunner-up

Pick GPT-5 Pro. In 2 blind votes, GPT-5 Pro wins 100% of the time. That's not luck.

GPT-5 Pro particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

GPT-5 Nano

Input

—

Output

—

GPT-5 Pro

Input

$15.00

Output

$120.00

Writing DNA

Style Comparison

Similarity

85%

GPT-5 Nano uses 1.6x more sentence length

GPT-5 Nano

GPT-5 Pro

59%Vocabulary65%

25wSentence Length15w

0.23Hedging0.32

0.0Bold0.0

4.2Lists2.9

0.00Emoji0.00

0.00Headings0.00

0.01Transitions0.01

Based on 14 + 11 text responses

Research

What we learned reading every model

GPT-5 Nano 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 MiniMax M3New provider

GPT-5 Pro vs Grok 3New provider

GPT-5 Pro vs Llama 4 MaverickNew provider