DeepSeek R1 0528 vs OpenAI o3
Compare DeepSeek R1 0528 by DeepSeek against OpenAI o3 by OpenAI, tested across 53 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 0528 or OpenAI o3?
DeepSeek R1 0528 and OpenAI o3 are both competitive models. DeepSeek R1 0528 costs $0/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 0528 and OpenAI o3
DeepSeek R1 0528 is made by deepseek while OpenAI o3 is from openai. On pricing, DeepSeek R1 0528 costs $0/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
DeepSeek R1 0528
Input
$0.000
Output
$0.000
OpenAI o3
Input
$10.00
Output
$40.00
Our Verdict
DeepSeek R1 0528
OpenAI o3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
39%
OpenAI o3 uses 11.7x more transitions
DeepSeek R1 0528
OpenAI o3
64%Vocabulary68%
10wSentence Length14w
0.30Hedging0.26
6.8Bold0.7
4.9Lists3.0
0.00Emoji0.00
0.40Headings0.38
0.00Transitions0.12
Based on 4 + 16 text responses
FAQ
