What is the difference between Claude Opus 4.6 and GPT-5.4 Nano?

Claude Opus 4.6 is developed by Anthropic while GPT-5.4 Nano is developed by OpenAI. Claude Opus 4.6 has a 1.0M token context window vs GPT-5.4 Nano's 400K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.6 or GPT-5.4 Nano?

It depends on your use case. Claude Opus 4.6 and GPT-5.4 Nano 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 Opus 4.6 cost compared to GPT-5.4 Nano?

Claude Opus 4.6 costs $5/M input tokens and GPT-5.4 Nano costs $0.2/M input tokens. GPT-5.4 Nano is $4.80/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 Opus 4.6 and GPT-5.4 Nano on Rival?

This page shows a side-by-side comparison of Claude Opus 4.6 and GPT-5.4 Nano 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 Opus 4.6 and GPT-5.4 Nano?

Claude Opus 4.6 is developed by Anthropic while GPT-5.4 Nano is developed by OpenAI. Claude Opus 4.6 has a 1.0M token context window vs GPT-5.4 Nano's 400K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.6 or GPT-5.4 Nano?

It depends on your use case. Claude Opus 4.6 and GPT-5.4 Nano 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 Opus 4.6 cost compared to GPT-5.4 Nano?

Claude Opus 4.6 costs $5/M input tokens and GPT-5.4 Nano costs $0.2/M input tokens. GPT-5.4 Nano is $4.80/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 Opus 4.6 and GPT-5.4 Nano on Rival?

This page shows a side-by-side comparison of Claude Opus 4.6 and GPT-5.4 Nano 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 Opus 4.6 vs GPT-5.4 Nano: Which Is Better?

Updated Mar 2026

Our Verdict

Claude Opus 4.6

GPT-5.4 NanoRunner-up

No community votes yet. On paper, Claude Opus 4.6 has the edge — bigger model tier, bigger context window.

GPT-5.4 Nano is 20x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 4.6

Input

$5.00

Output

$25.00

GPT-5.4 Nano

Input

$0.20

25× cheaper

Output

$1.25

20× cheaper

GPT-5.4 Nano is cheaper on both — 25× input, 20× output

Writing DNA

Style Comparison

Similarity

64%

Claude Opus 4.6 uses 20.7x more emoji

Claude Opus 4.6

GPT-5.4 Nano

53%Vocabulary51%

35wSentence Length21w

0.68Hedging0.58

5.2Bold7.1

2.9Lists5.5

0.21Emoji0.01

1.34Headings1.39

0.03Transitions0.05

Based on 23 + 23 text responses

Research

What we learned reading every model

Claude Opus 4.6 and GPT-5.4 Nano 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

GPT-5.4 Nano vs MiniMax M3New provider

Claude Opus 4.6 vs Grok 3New provider

Claude Opus 4.6 vs Llama 4 MaverickNew provider

Updated Mar 2026

Our Verdict

Claude Opus 4.6

GPT-5.4 NanoRunner-up

No community votes yet. On paper, Claude Opus 4.6 has the edge — bigger model tier, bigger context window.

GPT-5.4 Nano is 20x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 4.6

Input

$5.00

Output

$25.00

GPT-5.4 Nano

Input

$0.20

25× cheaper

Output

$1.25

20× cheaper

GPT-5.4 Nano is cheaper on both — 25× input, 20× output

Writing DNA

Style Comparison

Similarity

64%

Claude Opus 4.6 uses 20.7x more emoji

Claude Opus 4.6

GPT-5.4 Nano

53%Vocabulary51%

35wSentence Length21w

0.68Hedging0.58

5.2Bold7.1

2.9Lists5.5

0.21Emoji0.01

1.34Headings1.39

0.03Transitions0.05

Based on 23 + 23 text responses

Research

What we learned reading every model

Claude Opus 4.6 and GPT-5.4 Nano 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

GPT-5.4 Nano vs MiniMax M3New provider

Claude Opus 4.6 vs Grok 3New provider

Claude Opus 4.6 vs Llama 4 MaverickNew provider