DeepSeek R1 0528 vs OpenAI o4-mini
Compare DeepSeek R1 0528 by DeepSeek against OpenAI o4-mini by OpenAI, tested across 53 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 0528 or OpenAI o4-mini?
DeepSeek R1 0528 and OpenAI o4-mini are both competitive models. DeepSeek R1 0528 costs $0/M input tokens vs $1.1/M for OpenAI o4-mini. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 0528 and OpenAI o4-mini
DeepSeek R1 0528 is made by deepseek while OpenAI o4-mini is from openai. On pricing, DeepSeek R1 0528 costs $0/M input tokens vs $1.1/M for OpenAI o4-mini.
API pricing
Per 1M tokens
DeepSeek R1 0528
Input
$0.000
Output
$0.000
OpenAI o4-mini
Input
$1.10
Output
$4.40
Our Verdict
DeepSeek R1 0528
OpenAI o4-miniRunner-up
No community votes yet. On paper, DeepSeek R1 0528 has the edge — bigger model tier, newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
55%
DeepSeek R1 0528 uses 683.2x more bold
DeepSeek R1 0528
OpenAI o4-mini
64%Vocabulary73%
10wSentence Length15w
0.30Hedging0.18
6.8Bold0.0
4.9Lists2.1
0.00Emoji0.00
0.40Headings0.00
0.00Transitions0.02
Based on 4 + 10 text responses
FAQ
