DeepSeek V3.2 vs GPT-5 Pro

Compare DeepSeek V3.2 by DeepSeek against GPT-5 Pro by OpenAI, context windows of 131K vs 400K, tested across 42 shared challenges. Updated April 2026.

Which is better, DeepSeek V3.2 or GPT-5 Pro?

DeepSeek V3.2 and GPT-5 Pro are both competitive models. DeepSeek V3.2 costs $0.28/M input tokens vs $15/M for GPT-5 Pro. Context windows: 131K vs 400K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek V3.2 and GPT-5 Pro

DeepSeek V3.2 is made by deepseek while GPT-5 Pro is from openai. DeepSeek V3.2 has a 131K token context window compared to GPT-5 Pro's 400K. On pricing, DeepSeek V3.2 costs $0.28/M input tokens vs $15/M for GPT-5 Pro.

Our Verdict
GPT-5 Pro
GPT-5 Pro
DeepSeek V3.2
DeepSeek V3.2Runner-up

No community votes yet. On paper, GPT-5 Pro has the edge — bigger model tier, bigger context window.

DeepSeek V3.2 is 286x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
91%

DeepSeek V3.2 uses 625.6x more bold

DeepSeek V3.2
GPT-5 Pro
52%Vocabulary65%
31wSentence Length15w
0.58Hedging0.32
6.3Bold0.0
5.4Lists2.9
0.00Emoji0.00
0.80Headings0.00
0.13Transitions0.01
Based on 24 + 11 text responses
vs

Ask them anything yourself

DeepSeek V3.2GPT-5 Pro

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
FAQ

Common questions