Claude 3 Opus vs GPT-1
Compare Claude 3 Opus by Anthropic against GPT-1 by OpenAI, context windows of 200K vs 1K, tested across 7 shared challenges. Updated May 2026.
Which is better, Claude 3 Opus or GPT-1?
Claude 3 Opus and GPT-1 are both competitive models. Context windows: 200K vs 1K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Opus and GPT-1
Claude 3 Opus is made by anthropic while GPT-1 is from openai. Claude 3 Opus has a 200K token context window compared to GPT-1's 1K.
API pricing
Per 1M tokens
Claude 3 Opus
Input
$15.00
Output
$75.00
GPT-1
Input
—
Output
—
Our Verdict
Claude 3 Opus
GPT-1Runner-up
No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, newer, bigger context window.
Slight edge
Writing DNA
Style Comparison
Similarity
73%
Claude 3 Opus uses 11.1x more lists
Claude 3 Opus
GPT-1
54%Vocabulary65%
14wSentence Length14w
0.48Hedging0.27
0.0Bold0.0
3.0Lists0.3
0.00Emoji0.00
0.00Headings0.00
0.06Transitions0.41
Based on 3 + 7 text responses
FAQ
