Claude Opus 4.1 vs OpenAI o4-mini
Compare Claude Opus 4.1 by Anthropic against OpenAI o4-mini by OpenAI, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Opus 4.1 or OpenAI o4-mini?
Claude Opus 4.1 and OpenAI o4-mini are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and OpenAI o4-mini
Claude Opus 4.1 is made by anthropic while OpenAI o4-mini is from openai. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $1.1/M for OpenAI o4-mini.
API pricing
Per 1M tokens
Claude Opus 4.1
Input
$15.00
Output
$75.00
OpenAI o4-mini
Input
$1.10
14× cheaper
Output
$4.40
17× cheaper
OpenAI o4-mini is cheaper on both — 14× input, 17× output
Our Verdict
Claude Opus 4.1
OpenAI o4-miniRunner-up
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, newer, bigger context window.
OpenAI o4-mini is 17x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
41%
Claude Opus 4.1 uses 509.5x more bold
Claude Opus 4.1
OpenAI o4-mini
61%Vocabulary73%
87wSentence Length15w
0.54Hedging0.18
5.1Bold0.0
6.7Lists2.1
0.38Emoji0.00
1.68Headings0.00
0.13Transitions0.02
Based on 17 + 10 text responses
FAQ
