What is the difference between Claude Opus 4.6 and GPT-5 Pro?

Claude Opus 4.6 is developed by Anthropic while GPT-5 Pro is developed by OpenAI. Claude Opus 4.6 has a 1.0M token context window vs GPT-5 Pro's 400K. You can compare their actual outputs across 41 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.6 or GPT-5 Pro?

It depends on your use case. Claude Opus 4.6 and GPT-5 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 41 challenges so you can judge which fits your needs best.

How much does Claude Opus 4.6 cost compared to GPT-5 Pro?

Claude Opus 4.6 costs $5/M input tokens and GPT-5 Pro costs $15/M input tokens. Claude Opus 4.6 is $10.00/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 Opus 4.6 and GPT-5 Pro on Rival?

This page shows a side-by-side comparison of Claude Opus 4.6 and GPT-5 Pro 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 Pro?

Claude Opus 4.6 is developed by Anthropic while GPT-5 Pro is developed by OpenAI. Claude Opus 4.6 has a 1.0M token context window vs GPT-5 Pro's 400K. You can compare their actual outputs across 41 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.6 or GPT-5 Pro?

It depends on your use case. Claude Opus 4.6 and GPT-5 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 41 challenges so you can judge which fits your needs best.

How much does Claude Opus 4.6 cost compared to GPT-5 Pro?

Claude Opus 4.6 costs $5/M input tokens and GPT-5 Pro costs $15/M input tokens. Claude Opus 4.6 is $10.00/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 Opus 4.6 and GPT-5 Pro on Rival?

This page shows a side-by-side comparison of Claude Opus 4.6 and GPT-5 Pro 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.

Updated Feb 2026

Claude Opus 4.6vsGPT-5 Pro

Claude Opus 4.6 is cheaper than GPT-5 Pro at $5/M vs $15/M input tokens.

Claude Opus 4.6 and GPT-5 Pro compared across 41 shared prompts
Spec	Claude Opus 4.6	GPT-5 Pro
Input price	$5/M tokens	$15/M tokens
Output price	$25/M tokens	$120/M tokens
Context window	1.0M tokens	400K tokens
Released	Feb 2026	Oct 2025
SWE-bench Verified	80.8%	74.9%

Our Verdict

Claude Opus 4.6

GPT-5 ProRunner-up

Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: newer, bigger context window.

Claude Opus 4.6 costs 4.8x less per token.

Too close to call

What do Claude Opus 4.6 and GPT-5 Pro 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 Opus 4.6

Input

$5.00

3.0× cheaper

Output

$25.00

4.8× cheaper

GPT-5 Pro

Input

$15.00

Output

$120.00

Claude Opus 4.6 is cheaper on both — 3.0× input, 4.8× output

Writing DNA

Style Comparison

Similarity

30%

Claude Opus 4.6 uses 519.3x more bold

Claude Opus 4.6

GPT-5 Pro

53%Vocabulary65%

35wSentence Length15w

0.68Hedging0.32

5.2Bold0.0

2.9Lists2.9

0.21Emoji0.00

1.34Headings0.00

0.03Transitions0.01

Based on 23 + 11 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Pro vs MiniMax M3New provider

GPT-5 Pro vs Ox AlphaNew provider

GPT-5 Pro vs Gemini 2.5 Pro (I/O Edition)New provider

GPT-5 Pro vs Gemini 2.5 Pro Preview 06-05New provider

GPT-5 Pro vs Claude Sonnet 3.6 (2022-10-22)Cross-provider

GPT-5 Pro vs Claude 3.7 SonnetCross-provider

GPT-5 Pro vs Claude 3.7 Thinking SonnetCross-provider

GPT-5 Pro vs Claude Sonnet 4.5Cross-provider

Updated Feb 2026

Claude Opus 4.6vsGPT-5 Pro

Claude Opus 4.6 is cheaper than GPT-5 Pro at $5/M vs $15/M input tokens.

Claude Opus 4.6 and GPT-5 Pro compared across 41 shared prompts
Spec	Claude Opus 4.6	GPT-5 Pro
Input price	$5/M tokens	$15/M tokens
Output price	$25/M tokens	$120/M tokens
Context window	1.0M tokens	400K tokens
Released	Feb 2026	Oct 2025
SWE-bench Verified	80.8%	74.9%

Our Verdict

Claude Opus 4.6

GPT-5 ProRunner-up

Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: newer, bigger context window.

Claude Opus 4.6 costs 4.8x less per token.

Too close to call

What do Claude Opus 4.6 and GPT-5 Pro 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 Opus 4.6

Input

$5.00

3.0× cheaper

Output

$25.00

4.8× cheaper

GPT-5 Pro

Input

$15.00

Output

$120.00

Claude Opus 4.6 is cheaper on both — 3.0× input, 4.8× output

Writing DNA

Style Comparison

Similarity

30%

Claude Opus 4.6 uses 519.3x more bold

Claude Opus 4.6

GPT-5 Pro

53%Vocabulary65%

35wSentence Length15w

0.68Hedging0.32

5.2Bold0.0

2.9Lists2.9

0.21Emoji0.00

1.34Headings0.00

0.03Transitions0.01

Based on 23 + 11 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Pro vs MiniMax M3New provider

GPT-5 Pro vs Ox AlphaNew provider

GPT-5 Pro vs Gemini 2.5 Pro (I/O Edition)New provider

GPT-5 Pro vs Gemini 2.5 Pro Preview 06-05New provider

GPT-5 Pro vs Claude Sonnet 3.6 (2022-10-22)Cross-provider

GPT-5 Pro vs Claude 3.7 SonnetCross-provider

GPT-5 Pro vs Claude 3.7 Thinking SonnetCross-provider

GPT-5 Pro vs Claude Sonnet 4.5Cross-provider