GPT-5.4 Pro vs DeepSeek V3.2 Speciale

Compare GPT-5.4 Pro by OpenAI against DeepSeek V3.2 Speciale by DeepSeek, context windows of 1.1M vs 131K, tested across 17 shared challenges. Updated April 2026.

Which is better, GPT-5.4 Pro or DeepSeek V3.2 Speciale?

GPT-5.4 Pro and DeepSeek V3.2 Speciale are both competitive models. GPT-5.4 Pro costs $30/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale. Context windows: 1050K vs 131K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-5.4 Pro and DeepSeek V3.2 Speciale

GPT-5.4 Pro is made by openai while DeepSeek V3.2 Speciale is from deepseek. GPT-5.4 Pro has a 1050K token context window compared to DeepSeek V3.2 Speciale's 131K. On pricing, GPT-5.4 Pro costs $30/M input tokens vs $0.28/M for DeepSeek V3.2 Speciale.

Our Verdict
GPT-5.4 Pro
GPT-5.4 Pro
DeepSeek V3.2 Speciale
DeepSeek V3.2 SpecialeRunner-up

No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window.

DeepSeek V3.2 Speciale is 429x cheaper per token — worth considering if cost matters.

Slight edge
Writing DNA

Style Comparison

Similarity
95%

DeepSeek V3.2 Speciale uses 10.9x more emoji

GPT-5.4 Pro
DeepSeek V3.2 Speciale
50%Vocabulary45%
35wSentence Length15w
0.70Hedging0.97
7.5Bold3.2
8.3Lists3.5
0.00Emoji0.11
2.52Headings0.42
0.01Transitions0.28
Based on 12 + 21 text responses
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GPT-5.4 ProDeepSeek V3.2 Speciale

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