What is the difference between o1 and OpenAI o3?

Both are developed by OpenAI but target different use cases. in 9 community votes on Rival, OpenAI o3 wins 60% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, o1 or OpenAI o3?

Based on 9 community votes on Rival, OpenAI o3 wins 60% of head-to-head matchups against o1.

How much does o1 cost compared to OpenAI o3?

o1 costs $15/M input tokens and OpenAI o3 costs $10/M input tokens. OpenAI o3 is $5.00/M cheaper per input. OpenAI o3 also wins more often in community votes, making it the better value.

How are o1 vs OpenAI o3 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. 9 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

What is the difference between o1 and OpenAI o3?

Both are developed by OpenAI but target different use cases. in 9 community votes on Rival, OpenAI o3 wins 60% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, o1 or OpenAI o3?

Based on 9 community votes on Rival, OpenAI o3 wins 60% of head-to-head matchups against o1.

How much does o1 cost compared to OpenAI o3?

o1 costs $15/M input tokens and OpenAI o3 costs $10/M input tokens. OpenAI o3 is $5.00/M cheaper per input. OpenAI o3 also wins more often in community votes, making it the better value.

How are o1 vs OpenAI o3 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. 9 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

o1 vs OpenAI o3: Which Is Better?

Updated Apr 2025

Our Verdict

OpenAI o3Winner

o1Runner-up

Pick OpenAI o3. In 9 blind votes, OpenAI o3 wins 60% of the time. That's not luck.

Clear winner

API pricing

Cost per 1M tokens

Input

$15.00

Output

$60.00

OpenAI o3

Input

$10.00

1.5× cheaper

Output

$40.00

1.5× cheaper

OpenAI o3 is cheaper on both — 1.5× input, 1.5× output

Writing DNA

Style Comparison

Similarity

56%

o1 uses 7.2x more bold

OpenAI o3

64%Vocabulary68%

16wSentence Length14w

0.76Hedging0.26

5.0Bold0.7

2.6Lists3.0

0.00Emoji0.00

0.44Headings0.38

0.40Transitions0.12

Based on 13 + 16 text responses

Research

What we learned reading every model

o1 and OpenAI o3 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

o1 vs Gemini 2.5 Pro Preview 06-05New provider

o1 vs MiniMax M3New provider

o1 vs Grok 3New provider

Updated Apr 2025

Our Verdict

OpenAI o3Winner

o1Runner-up

Pick OpenAI o3. In 9 blind votes, OpenAI o3 wins 60% of the time. That's not luck.

Clear winner

API pricing

Cost per 1M tokens

Input

$15.00

Output

$60.00

OpenAI o3

Input

$10.00

1.5× cheaper

Output

$40.00

1.5× cheaper

OpenAI o3 is cheaper on both — 1.5× input, 1.5× output

Writing DNA

Style Comparison

Similarity

56%

o1 uses 7.2x more bold

OpenAI o3

64%Vocabulary68%

16wSentence Length14w

0.76Hedging0.26

5.0Bold0.7

2.6Lists3.0

0.00Emoji0.00

0.44Headings0.38

0.40Transitions0.12

Based on 13 + 16 text responses

Research

What we learned reading every model

o1 and OpenAI o3 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

o1 vs Gemini 2.5 Pro Preview 06-05New provider

o1 vs MiniMax M3New provider

o1 vs Grok 3New provider