DeepSeek R1 vs Gemini 3 Flash Preview

Compare DeepSeek R1 by DeepSeek against Gemini 3 Flash Preview by Google AI, context windows of 128K vs 1.0M, tested across 54 shared challenges. Updated April 2026.

Which is better, DeepSeek R1 or Gemini 3 Flash Preview?

DeepSeek R1 and Gemini 3 Flash Preview are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $0.5/M for Gemini 3 Flash Preview. Context windows: 128K vs 1049K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek R1 and Gemini 3 Flash Preview

DeepSeek R1 is made by deepseek while Gemini 3 Flash Preview is from google. DeepSeek R1 has a 128K token context window compared to Gemini 3 Flash Preview's 1049K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $0.5/M for Gemini 3 Flash Preview.

Our Verdict
Gemini 3 Flash Preview
Gemini 3 Flash Preview
DeepSeek R1
DeepSeek R1Runner-up

No community votes yet. On paper, Gemini 3 Flash Preview has the edge — newer, bigger context window.

Too close to call
Writing DNA

Style Comparison

Similarity
90%

DeepSeek R1 uses 4.3x more emoji

DeepSeek R1
Gemini 3 Flash Preview
62%Vocabulary55%
15wSentence Length18w
0.52Hedging0.42
8.0Bold7.1
5.7Lists4.5
0.04Emoji0.00
0.62Headings0.84
0.28Transitions0.07
Based on 22 + 24 text responses
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DeepSeek R1Gemini 3 Flash Preview

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