DeepSeek Prover V2 vs GPT-5

Compare DeepSeek Prover V2 by DeepSeek against GPT-5 by OpenAI, context windows of 164K vs 400K, tested across 6 shared challenges. Updated April 2026.

Which is better, DeepSeek Prover V2 or GPT-5?

DeepSeek Prover V2 and GPT-5 are both competitive models. DeepSeek Prover V2 costs $0/M input tokens vs $1.25/M for GPT-5. Context windows: 164K vs 400K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek Prover V2 and GPT-5

DeepSeek Prover V2 is made by deepseek while GPT-5 is from openai. DeepSeek Prover V2 has a 164K token context window compared to GPT-5's 400K. On pricing, DeepSeek Prover V2 costs $0/M input tokens vs $1.25/M for GPT-5.

Our Verdict
GPT-5
GPT-5
DeepSeek Prover V2
DeepSeek Prover V2Runner-up

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

Too close to call
Writing DNA

Style Comparison

Similarity
80%

GPT-5 uses 19.5x more hedging

DeepSeek Prover V2
GPT-5
47%Vocabulary65%
8wSentence Length13w
0.00Hedging0.20
3.1Bold0.2
0.0Lists4.6
0.00Emoji0.00
0.35Headings0.16
0.19Transitions0.03
Based on 1 + 16 text responses
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DeepSeek Prover V2GPT-5

279 AI models invented the same fake scientist.

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

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