Claude Opus 4.6 vs GPT-5
Compare Claude Opus 4.6 by Anthropic against GPT-5 by OpenAI, context windows of 1.0M vs 400K, tested across 51 shared challenges. Updated May 2026.
Which is better, Claude Opus 4.6 or GPT-5?
Claude Opus 4.6 and GPT-5 are both competitive models. Claude Opus 4.6 costs $5/M input tokens vs $1.25/M for GPT-5. Context windows: 1000K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.6 and GPT-5
Claude Opus 4.6 is made by anthropic while GPT-5 is from openai. Claude Opus 4.6 has a 1000K token context window compared to GPT-5's 400K. On pricing, Claude Opus 4.6 costs $5/M input tokens vs $1.25/M for GPT-5.
API pricing
Per 1M tokens
Claude Opus 4.6
Input
$5.00
Output
$25.00
GPT-5
Input
$1.25
4.0× cheaper
Output
$10.00
2.5× cheaper
GPT-5 is cheaper on both — 4.0× input, 2.5× output
Our Verdict
Claude Opus 4.6
GPT-5Runner-up
No community votes yet. On paper, Claude Opus 4.6 has the edge — newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
32%
Claude Opus 4.6 uses 20.7x more emoji
Claude Opus 4.6
GPT-5
53%Vocabulary65%
35wSentence Length13w
0.68Hedging0.20
5.2Bold0.2
2.9Lists4.6
0.21Emoji0.00
1.34Headings0.16
0.03Transitions0.03
Based on 23 + 16 text responses
FAQ
