What is the difference between GPT-4o (Omni) and OpenAI o4-mini?

Both are developed by OpenAI but target different use cases. in 3 community votes on Rival, GPT-4o (Omni) wins 67% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, GPT-4o (Omni) or OpenAI o4-mini?

Based on 3 community votes on Rival, GPT-4o (Omni) wins 67% of head-to-head matchups against OpenAI o4-mini.

How much does GPT-4o (Omni) cost compared to OpenAI o4-mini?

GPT-4o (Omni) costs $2.5/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. OpenAI o4-mini is $1.40/M cheaper per input. The more expensive model wins 67% of duels, so the premium may be justified by quality.

How are GPT-4o (Omni) vs OpenAI o4-mini 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. 3 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 GPT-4o (Omni) and OpenAI o4-mini?

Both are developed by OpenAI but target different use cases. in 3 community votes on Rival, GPT-4o (Omni) wins 67% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, GPT-4o (Omni) or OpenAI o4-mini?

Based on 3 community votes on Rival, GPT-4o (Omni) wins 67% of head-to-head matchups against OpenAI o4-mini.

How much does GPT-4o (Omni) cost compared to OpenAI o4-mini?

GPT-4o (Omni) costs $2.5/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. OpenAI o4-mini is $1.40/M cheaper per input. The more expensive model wins 67% of duels, so the premium may be justified by quality.

How are GPT-4o (Omni) vs OpenAI o4-mini 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. 3 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

GPT-4o (Omni) vs OpenAI o4-mini: Which Is Better?

Updated Apr 2025

Our Verdict

GPT-4o (Omni)Winner

OpenAI o4-miniRunner-up

Pick GPT-4o (Omni). In 3 blind votes, GPT-4o (Omni) wins 67% of the time. That's not luck.

Clear winner

API pricing

Cost per 1M tokens

GPT-4o (Omni)

Input

$2.50

Output

$10.00

OpenAI o4-mini

Input

$1.10

2.3× cheaper

Output

$4.40

2.3× cheaper

OpenAI o4-mini is cheaper on both — 2.3× input, 2.3× output

Writing DNA

Style Comparison

Similarity

25%

GPT-4o (Omni) uses 734.5x more bold

GPT-4o (Omni)

OpenAI o4-mini

54%Vocabulary73%

18wSentence Length15w

0.72Hedging0.18

7.3Bold0.0

5.6Lists2.1

0.03Emoji0.00

1.40Headings0.00

0.26Transitions0.02

Based on 24 + 10 text responses

Research

What we learned reading every model

GPT-4o (Omni) and OpenAI o4-mini 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-4o (Omni) vs Llama 4 MaverickNew provider

OpenAI o4-mini vs GPT-5Same lab

GPT-4o (Omni) vs MiniMax M3New provider

Updated Apr 2025

Our Verdict

GPT-4o (Omni)Winner

OpenAI o4-miniRunner-up

Pick GPT-4o (Omni). In 3 blind votes, GPT-4o (Omni) wins 67% of the time. That's not luck.

Clear winner

API pricing

Cost per 1M tokens

GPT-4o (Omni)

Input

$2.50

Output

$10.00

OpenAI o4-mini

Input

$1.10

2.3× cheaper

Output

$4.40

2.3× cheaper

OpenAI o4-mini is cheaper on both — 2.3× input, 2.3× output

Writing DNA

Style Comparison

Similarity

25%

GPT-4o (Omni) uses 734.5x more bold

GPT-4o (Omni)

OpenAI o4-mini

54%Vocabulary73%

18wSentence Length15w

0.72Hedging0.18

7.3Bold0.0

5.6Lists2.1

0.03Emoji0.00

1.40Headings0.00

0.26Transitions0.02

Based on 24 + 10 text responses

Research

What we learned reading every model

GPT-4o (Omni) and OpenAI o4-mini 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-4o (Omni) vs Llama 4 MaverickNew provider

OpenAI o4-mini vs GPT-5Same lab

GPT-4o (Omni) vs MiniMax M3New provider