DeepSeek R1 vs GPT-5 Nano
Compare DeepSeek R1 by DeepSeek against GPT-5 Nano by OpenAI, tested across 54 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 or GPT-5 Nano?
DeepSeek R1 and GPT-5 Nano are both competitive models. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and GPT-5 Nano
DeepSeek R1 is made by deepseek while GPT-5 Nano is from openai.
API pricing
Per 1M tokens
DeepSeek R1
Input
$0.55
Output
$2.19
GPT-5 Nano
Input
—
Output
—
Our Verdict
DeepSeek R1
GPT-5 Nano
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
34%
DeepSeek R1 uses 800.0x more bold
DeepSeek R1
GPT-5 Nano
62%Vocabulary59%
15wSentence Length25w
0.52Hedging0.23
8.0Bold0.0
5.7Lists4.2
0.04Emoji0.00
0.62Headings0.00
0.28Transitions0.01
Based on 22 + 14 text responses
FAQ
