What is the difference between Claude 3 Haiku and Claude Sonnet 4?

Both are developed by Anthropic but target different use cases. Claude 3 Haiku has a 200K token context window vs Claude Sonnet 4's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Haiku or Claude Sonnet 4?

It depends on your use case. Claude 3 Haiku and Claude Sonnet 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude 3 Haiku cost compared to Claude Sonnet 4?

Claude 3 Haiku costs $0.25/M input tokens and Claude Sonnet 4 costs $3/M input tokens. Claude 3 Haiku is $2.75/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 3 Haiku and Claude Sonnet 4 on Rival?

This page shows a side-by-side comparison of Claude 3 Haiku and Claude Sonnet 4 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 3 Haiku and Claude Sonnet 4?

Both are developed by Anthropic but target different use cases. Claude 3 Haiku has a 200K token context window vs Claude Sonnet 4's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Haiku or Claude Sonnet 4?

It depends on your use case. Claude 3 Haiku and Claude Sonnet 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude 3 Haiku cost compared to Claude Sonnet 4?

Claude 3 Haiku costs $0.25/M input tokens and Claude Sonnet 4 costs $3/M input tokens. Claude 3 Haiku is $2.75/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 3 Haiku and Claude Sonnet 4 on Rival?

This page shows a side-by-side comparison of Claude 3 Haiku and Claude Sonnet 4 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 3 Haiku vs Claude Sonnet 4: Which Is Better?

Updated May 2025

Our Verdict

Claude Sonnet 4

Claude 3 HaikuRunner-up

No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer.

Claude 3 Haiku is 12x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Haiku

Input

$0.25

12× cheaper

Output

$1.25

12× cheaper

Claude Sonnet 4

Input

$3.00

Output

$15.00

Claude 3 Haiku is cheaper on both — 12× input, 12× output

Writing DNA

Style Comparison

Similarity

48%

Claude Sonnet 4 uses 87.9x more emoji

Claude 3 Haiku

Claude Sonnet 4

50%Vocabulary62%

22wSentence Length111w

0.71Hedging0.40

0.3Bold5.0

5.9Lists9.3

0.00Emoji0.88

0.00Headings2.16

0.08Transitions0.33

Based on 13 + 17 text responses

Research

What we learned reading every model

Claude 3 Haiku and Claude Sonnet 4 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

Claude 3 Haiku vs MiniMax M3New provider

Claude 3 Haiku vs GPT-5New provider

Claude 3 Haiku vs Llama 4 MaverickNew provider

Updated May 2025

Our Verdict

Claude Sonnet 4

Claude 3 HaikuRunner-up

No community votes yet. On paper, Claude Sonnet 4 has the edge — bigger model tier, newer.

Claude 3 Haiku is 12x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Haiku

Input

$0.25

12× cheaper

Output

$1.25

12× cheaper

Claude Sonnet 4

Input

$3.00

Output

$15.00

Claude 3 Haiku is cheaper on both — 12× input, 12× output

Writing DNA

Style Comparison

Similarity

48%

Claude Sonnet 4 uses 87.9x more emoji

Claude 3 Haiku

Claude Sonnet 4

50%Vocabulary62%

22wSentence Length111w

0.71Hedging0.40

0.3Bold5.0

5.9Lists9.3

0.00Emoji0.88

0.00Headings2.16

0.08Transitions0.33

Based on 13 + 17 text responses

Research

What we learned reading every model

Claude 3 Haiku and Claude Sonnet 4 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

Claude 3 Haiku vs MiniMax M3New provider

Claude 3 Haiku vs GPT-5New provider

Claude 3 Haiku vs Llama 4 MaverickNew provider