What is the difference between Claude Haiku 4.5 and Sonar Pro Search?

Claude Haiku 4.5 is developed by Anthropic while Sonar Pro Search is developed by Perplexity. Claude Haiku 4.5 has a 200K token context window vs Sonar Pro Search's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Sonar Pro Search?

It depends on your use case. Claude Haiku 4.5 and Sonar Pro Search 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 Haiku 4.5 cost compared to Sonar Pro Search?

Claude Haiku 4.5 costs $1/M input tokens and Sonar Pro Search costs $3/M input tokens. Claude Haiku 4.5 is $2.00/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 Sonar Pro Search on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Sonar Pro Search 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 Sonar Pro Search?

Claude Haiku 4.5 is developed by Anthropic while Sonar Pro Search is developed by Perplexity. Claude Haiku 4.5 has a 200K token context window vs Sonar Pro Search's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Sonar Pro Search?

It depends on your use case. Claude Haiku 4.5 and Sonar Pro Search 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 Haiku 4.5 cost compared to Sonar Pro Search?

Claude Haiku 4.5 costs $1/M input tokens and Sonar Pro Search costs $3/M input tokens. Claude Haiku 4.5 is $2.00/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 Sonar Pro Search on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Sonar Pro Search 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 Sonar Pro Search: Which Is Better?

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

Sonar Pro Search

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Claude Haiku 4.5 is 3.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

3.0× cheaper

Output

$5.00

3.0× cheaper

Sonar Pro Search

Input

$3.00

Output

$15.00

Claude Haiku 4.5 is cheaper on both — 3.0× input, 3.0× output

Writing DNA

Style Comparison

Similarity

64%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Sonar Pro Search

61%Vocabulary60%

47wSentence Length22w

0.64Hedging0.30

5.1Bold2.7

6.3Lists2.6

0.20Emoji0.00

2.46Headings2.08

0.17Transitions0.07

Based on 24 + 25 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Sonar Pro Search 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

Sonar Pro Search vs MiniMax M3New provider

Sonar Pro Search vs xAI: Grok 4New provider

Sonar Pro Search vs GPT OSS 20BNew provider

Updated Oct 2025

Our Verdict

Claude Haiku 4.5

Sonar Pro Search

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Claude Haiku 4.5 is 3.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

3.0× cheaper

Output

$5.00

3.0× cheaper

Sonar Pro Search

Input

$3.00

Output

$15.00

Claude Haiku 4.5 is cheaper on both — 3.0× input, 3.0× output

Writing DNA

Style Comparison

Similarity

64%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Sonar Pro Search

61%Vocabulary60%

47wSentence Length22w

0.64Hedging0.30

5.1Bold2.7

6.3Lists2.6

0.20Emoji0.00

2.46Headings2.08

0.17Transitions0.07

Based on 24 + 25 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Sonar Pro Search 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

Sonar Pro Search vs MiniMax M3New provider

Sonar Pro Search vs xAI: Grok 4New provider

Sonar Pro Search vs GPT OSS 20BNew provider