Claude Opus 4.6vsOpenAI o4-mini
OpenAI o4-mini is cheaper than Claude Opus 4.6 at $1.1/M vs $5/M input tokens.
| Spec | Claude Opus 4.6 | OpenAI o4-mini |
|---|---|---|
| Input price | $5/M tokens | $1.1/M tokens |
| Output price | $25/M tokens | $4.4/M tokens |
| Context window | 1.0M tokens | — |
| Released | Feb 2026 | Apr 2025 |
| SWE-bench Verified | 80.8% | 68.1% |
Our Verdict
Claude Opus 4.6
OpenAI o4-miniRunner-up
Not enough votes to call it. On the specs, Claude Opus 4.6 has the edge: bigger model tier, newer, bigger context window.
OpenAI o4-mini costs 5.7x less per token.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4.6
Input
$5.00
Output
$25.00
OpenAI o4-mini
Input
$1.10
4.5× cheaper
Output
$4.40
5.7× cheaper
OpenAI o4-mini is cheaper on both — 4.5× input, 5.7× output
Writing DNA
Style Comparison
Similarity
42%
Claude Opus 4.6 uses 519.3x more bold
Claude Opus 4.6
OpenAI o4-mini
53%Vocabulary73%
35wSentence Length15w
0.68Hedging0.18
5.2Bold0.0
2.9Lists2.1
0.21Emoji0.00
1.34Headings0.00
0.03Transitions0.02
Based on 23 + 10 text responses
Research
What we learned reading every model
FAQ
Common questions
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