What is the difference between Claude 3 Haiku and Claude Opus 5?

Both are developed by Anthropic but target different use cases. Claude 3 Haiku has a 200K token context window vs Claude Opus 5's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Haiku or Claude Opus 5?

It depends on your use case. Claude 3 Haiku and Claude Opus 5 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 3 Haiku cost compared to Claude Opus 5?

Claude 3 Haiku costs $0.25/M input tokens and Claude Opus 5 costs $5/M input tokens. Claude 3 Haiku is $4.75/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 Opus 5 on Rival?

This page shows a side-by-side comparison of Claude 3 Haiku and Claude Opus 5 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 Opus 5?

Both are developed by Anthropic but target different use cases. Claude 3 Haiku has a 200K token context window vs Claude Opus 5's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Haiku or Claude Opus 5?

It depends on your use case. Claude 3 Haiku and Claude Opus 5 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 3 Haiku cost compared to Claude Opus 5?

Claude 3 Haiku costs $0.25/M input tokens and Claude Opus 5 costs $5/M input tokens. Claude 3 Haiku is $4.75/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 Opus 5 on Rival?

This page shows a side-by-side comparison of Claude 3 Haiku and Claude Opus 5 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 Opus 5: Which Is Better?

Updated Jul 2026

Our Verdict

Claude Opus 5

Claude 3 HaikuRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window.

Claude 3 Haiku is 20x cheaper per token — worth considering if cost matters.

Slight edge

What do Claude 3 Haiku and Claude Opus 5 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3 Haiku

Input

$0.25

20× cheaper

Output

$1.25

20× cheaper

Claude Opus 5

Input

$5.00

Output

$25.00

Claude 3 Haiku is cheaper on both — 20× input, 20× output

Writing DNA

Style Comparison

Similarity

49%

Claude Opus 5 uses 1.7x more emoji

Claude 3 Haiku

Claude Opus 5

50%Vocabulary54%

22wSentence Length21w

0.71Hedging0.40

0.3Bold3.9

5.9Lists1.9

0.00Emoji0.02

0.00Headings0.71

0.08Transitions0.05

Based on 13 + 27 text responses

Research

What we learned reading every model

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 Jul 2026

Our Verdict

Claude Opus 5

Claude 3 HaikuRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window.

Claude 3 Haiku is 20x cheaper per token — worth considering if cost matters.

Slight edge

What do Claude 3 Haiku and Claude Opus 5 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude 3 Haiku

Input

$0.25

20× cheaper

Output

$1.25

20× cheaper

Claude Opus 5

Input

$5.00

Output

$25.00

Claude 3 Haiku is cheaper on both — 20× input, 20× output

Writing DNA

Style Comparison

Similarity

49%

Claude Opus 5 uses 1.7x more emoji

Claude 3 Haiku

Claude Opus 5

50%Vocabulary54%

22wSentence Length21w

0.71Hedging0.40

0.3Bold3.9

5.9Lists1.9

0.00Emoji0.02

0.00Headings0.71

0.08Transitions0.05

Based on 13 + 27 text responses

Research

What we learned reading every model

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