What is the difference between GPT-5.4 and GPT-5.6 Sol?

Both are developed by OpenAI but target different use cases. GPT-5.4 has a 1.1M token context window vs GPT-5.6 Sol's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or GPT-5.6 Sol?

It depends on your use case. GPT-5.4 and GPT-5.6 Sol 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 GPT-5.4 cost compared to GPT-5.6 Sol?

GPT-5.4 costs $2.5/M input tokens and GPT-5.6 Sol costs $5/M input tokens. GPT-5.4 is $2.50/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 and GPT-5.6 Sol on Rival?

This page shows a side-by-side comparison of GPT-5.4 and GPT-5.6 Sol 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 and GPT-5.6 Sol?

Both are developed by OpenAI but target different use cases. GPT-5.4 has a 1.1M token context window vs GPT-5.6 Sol's 1.1M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or GPT-5.6 Sol?

It depends on your use case. GPT-5.4 and GPT-5.6 Sol 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 GPT-5.4 cost compared to GPT-5.6 Sol?

GPT-5.4 costs $2.5/M input tokens and GPT-5.6 Sol costs $5/M input tokens. GPT-5.4 is $2.50/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 and GPT-5.6 Sol on Rival?

This page shows a side-by-side comparison of GPT-5.4 and GPT-5.6 Sol 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 vs GPT-5.6 Sol: Which Is Better?

Updated Jul 2026

Our Verdict

GPT-5.4

GPT-5.6 Sol

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

Too close to call

What do GPT-5.4 and GPT-5.6 Sol 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

Input

$2.50

2.0× cheaper

Output

$15.00

2.0× cheaper

GPT-5.6 Sol

Input

$5.00

Output

$30.00

GPT-5.4 is cheaper on both — 2.0× input, 2.0× output

Writing DNA

Style Comparison

Similarity

69%

GPT-5.6 Sol uses 3.3x more emoji

GPT-5.4

GPT-5.6 Sol

54%Vocabulary63%

28wSentence Length15w

0.69Hedging0.79

4.1Bold3.4

8.1Lists3.8

0.00Emoji0.03

1.84Headings0.95

0.02Transitions0.08

Based on 22 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Claude Opus 4.1New provider

GPT-5.4 vs GPT-5Same lab

Updated Jul 2026

Our Verdict

GPT-5.4

GPT-5.6 Sol

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

Too close to call

What do GPT-5.4 and GPT-5.6 Sol 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

Input

$2.50

2.0× cheaper

Output

$15.00

2.0× cheaper

GPT-5.6 Sol

Input

$5.00

Output

$30.00

GPT-5.4 is cheaper on both — 2.0× input, 2.0× output

Writing DNA

Style Comparison

Similarity

69%

GPT-5.6 Sol uses 3.3x more emoji

GPT-5.4

GPT-5.6 Sol

54%Vocabulary63%

28wSentence Length15w

0.69Hedging0.79

4.1Bold3.4

8.1Lists3.8

0.00Emoji0.03

1.84Headings0.95

0.02Transitions0.08

Based on 22 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Claude Opus 4.1New provider

GPT-5.4 vs GPT-5Same lab