Claude 3 Opus vs GPT-5.4 Mini
Compare Claude 3 Opus by Anthropic against GPT-5.4 Mini by OpenAI, context windows of 200K vs 400K, tested across 12 shared challenges.
Our Verdict
Claude 3 Opus
GPT-5.4 Mini
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT-5.4 Mini is 17x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude 3 Opus
Input
$15.00
Output
$75.00
GPT-5.4 Mini
Input
$0.75
20× cheaper
Output
$4.50
17× cheaper
GPT-5.4 Mini is cheaper on both — 20× input, 17× output
Writing DNA
Style Comparison
Similarity
44%
GPT-5.4 Mini uses 596.8x more bold
Claude 3 Opus
GPT-5.4 Mini
54%Vocabulary54%
14wSentence Length20w
0.48Hedging0.72
0.0Bold6.0
3.0Lists8.3
0.00Emoji0.00
0.00Headings2.11
0.06Transitions0.04
Based on 3 + 23 text responses
Research
What we learned reading every model
FAQ
Common questions
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