What is the difference between Claude Haiku 4.5 and OpenAI o4 Mini High?

Claude Haiku 4.5 is developed by Anthropic while OpenAI o4 Mini High is developed by OpenAI. Claude Haiku 4.5 has a 200K token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or OpenAI o4 Mini High?

It depends on your use case. Claude Haiku 4.5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Haiku 4.5 cost compared to OpenAI o4 Mini High?

Claude Haiku 4.5 costs $1/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. Claude Haiku 4.5 is $0.10/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 Claude Haiku 4.5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and OpenAI o4 Mini High 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 Claude Haiku 4.5 and OpenAI o4 Mini High?

Claude Haiku 4.5 is developed by Anthropic while OpenAI o4 Mini High is developed by OpenAI. Claude Haiku 4.5 has a 200K token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or OpenAI o4 Mini High?

It depends on your use case. Claude Haiku 4.5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Haiku 4.5 cost compared to OpenAI o4 Mini High?

Claude Haiku 4.5 costs $1/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. Claude Haiku 4.5 is $0.10/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 Claude Haiku 4.5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and OpenAI o4 Mini High 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.

Claude Haiku 4.5 vs OpenAI o4 Mini High: Which Is Better?

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

OpenAI o4 Mini HighRunner-up

No community votes yet. On paper, Claude Haiku 4.5 has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

1.1× cheaper

Output

$5.00

OpenAI o4 Mini High

Input

$1.10

Output

$4.40

1.1× cheaper

Claude Haiku 4.5 wins input (1.1× cheaper)·OpenAI o4 Mini High wins output (1.1× cheaper)

Writing DNA

Style Comparison

Similarity

36%

Claude Haiku 4.5 uses 513.9x more bold

Claude Haiku 4.5

OpenAI o4 Mini High

61%Vocabulary70%

47wSentence Length18w

0.64Hedging0.33

5.1Bold0.0

6.3Lists1.3

0.20Emoji0.02

2.46Headings0.00

0.17Transitions0.04

Based on 24 + 14 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and OpenAI o4 Mini High 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

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OpenAI o4 Mini High vs MiniMax M3New provider

Claude Haiku 4.5 vs xAI: Grok 4New provider

OpenAI o4 Mini High vs Pony AlphaNew provider

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

OpenAI o4 Mini HighRunner-up

No community votes yet. On paper, Claude Haiku 4.5 has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

1.1× cheaper

Output

$5.00

OpenAI o4 Mini High

Input

$1.10

Output

$4.40

1.1× cheaper

Claude Haiku 4.5 wins input (1.1× cheaper)·OpenAI o4 Mini High wins output (1.1× cheaper)

Writing DNA

Style Comparison

Similarity

36%

Claude Haiku 4.5 uses 513.9x more bold

Claude Haiku 4.5

OpenAI o4 Mini High

61%Vocabulary70%

47wSentence Length18w

0.64Hedging0.33

5.1Bold0.0

6.3Lists1.3

0.20Emoji0.02

2.46Headings0.00

0.17Transitions0.04

Based on 24 + 14 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and OpenAI o4 Mini High 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

OpenAI o4 Mini High vs MiniMax M3New provider

Claude Haiku 4.5 vs xAI: Grok 4New provider

OpenAI o4 Mini High vs Pony AlphaNew provider