What is the difference between GPT-5.4 Pro and Sonar Pro Search?

GPT-5.4 Pro is developed by OpenAI while Sonar Pro Search is developed by Perplexity. GPT-5.4 Pro has a 1.1M token context window vs Sonar Pro Search's 200K. You can compare their actual outputs across 18 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 Pro or Sonar Pro Search?

It depends on your use case. GPT-5.4 Pro and Sonar Pro Search each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 18 challenges so you can judge which fits your needs best.

How much does GPT-5.4 Pro cost compared to Sonar Pro Search?

GPT-5.4 Pro costs $30/M input tokens and Sonar Pro Search costs $3/M input tokens. Sonar Pro Search is $27.00/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 GPT-5.4 Pro and Sonar Pro Search on Rival?

This page shows a side-by-side comparison of GPT-5.4 Pro 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 GPT-5.4 Pro and Sonar Pro Search?

GPT-5.4 Pro is developed by OpenAI while Sonar Pro Search is developed by Perplexity. GPT-5.4 Pro has a 1.1M token context window vs Sonar Pro Search's 200K. You can compare their actual outputs across 18 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 Pro or Sonar Pro Search?

It depends on your use case. GPT-5.4 Pro and Sonar Pro Search each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 18 challenges so you can judge which fits your needs best.

How much does GPT-5.4 Pro cost compared to Sonar Pro Search?

GPT-5.4 Pro costs $30/M input tokens and Sonar Pro Search costs $3/M input tokens. Sonar Pro Search is $27.00/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 GPT-5.4 Pro and Sonar Pro Search on Rival?

This page shows a side-by-side comparison of GPT-5.4 Pro 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.

GPT-5.4 Pro vs Sonar Pro Search: Which Is Better?

Updated Mar 2026

Our Verdict

GPT-5.4 Pro

Sonar Pro SearchRunner-up

No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.

Sonar Pro Search is 12x cheaper per token — worth considering if cost matters.

Slight edge

What do GPT-5.4 Pro and Sonar Pro Search say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.4 Pro

Input

$30.00

Output

$180.00

Sonar Pro Search

Input

$3.00

10× cheaper

Output

$15.00

12× cheaper

Sonar Pro Search is cheaper on both — 10× input, 12× output

Writing DNA

Style Comparison

Similarity

67%

Sonar Pro Search uses 6.7x more transitions

GPT-5.4 Pro

Sonar Pro Search

50%Vocabulary60%

35wSentence Length22w

0.70Hedging0.30

7.5Bold2.7

8.3Lists2.6

0.00Emoji0.00

2.52Headings2.08

0.01Transitions0.07

Based on 12 + 25 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Sonar Pro Search vs MiniMax M3New provider

Sonar Pro Search vs Ox AlphaNew provider

Sonar Pro Search vs Claude Opus 4New provider

Updated Mar 2026

Our Verdict

GPT-5.4 Pro

Sonar Pro SearchRunner-up

No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.

Sonar Pro Search is 12x cheaper per token — worth considering if cost matters.

Slight edge

What do GPT-5.4 Pro and Sonar Pro Search say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.4 Pro

Input

$30.00

Output

$180.00

Sonar Pro Search

Input

$3.00

10× cheaper

Output

$15.00

12× cheaper

Sonar Pro Search is cheaper on both — 10× input, 12× output

Writing DNA

Style Comparison

Similarity

67%

Sonar Pro Search uses 6.7x more transitions

GPT-5.4 Pro

Sonar Pro Search

50%Vocabulary60%

35wSentence Length22w

0.70Hedging0.30

7.5Bold2.7

8.3Lists2.6

0.00Emoji0.00

2.52Headings2.08

0.01Transitions0.07

Based on 12 + 25 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Sonar Pro Search vs MiniMax M3New provider

Sonar Pro Search vs Ox AlphaNew provider

Sonar Pro Search vs Claude Opus 4New provider