DeepSeek R1 0528 vs GPT-5 Mini

Compare DeepSeek R1 0528 by DeepSeek against GPT-5 Mini by OpenAI, tested across 45 shared challenges. Updated April 2026.

Which is better, DeepSeek R1 0528 or GPT-5 Mini?

DeepSeek R1 0528 and GPT-5 Mini are both competitive models. DeepSeek R1 0528 costs $0/M input tokens vs $0.25/M for GPT-5 Mini. Compare their real outputs side by side below.

Key Differences Between DeepSeek R1 0528 and GPT-5 Mini

DeepSeek R1 0528 is made by deepseek while GPT-5 Mini is from openai. On pricing, DeepSeek R1 0528 costs $0/M input tokens vs $0.25/M for GPT-5 Mini.

Our Verdict
DeepSeek R1 0528
DeepSeek R1 0528
GPT-5 Mini
GPT-5 Mini

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
76%

DeepSeek R1 0528 uses 683.2x more bold

DeepSeek R1 0528
GPT-5 Mini
64%Vocabulary62%
10wSentence Length21w
0.30Hedging0.16
6.8Bold0.0
4.9Lists3.4
0.00Emoji0.00
0.40Headings0.00
0.00Transitions0.05
Based on 4 + 15 text responses
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DeepSeek R1 0528GPT-5 Mini

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
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