DeepSeek V4 Pro vs Gemini 3.5 Flash
Compare DeepSeek V4 Pro by DeepSeek against Gemini 3.5 Flash by Google AI, context windows of 1.0M vs 1.0M, tested across 54 shared challenges. Updated June 2026.
Which is better, DeepSeek V4 Pro or Gemini 3.5 Flash?
DeepSeek V4 Pro and Gemini 3.5 Flash are both competitive models. DeepSeek V4 Pro costs $1.74/M input tokens vs $1.5/M for Gemini 3.5 Flash. Context windows: 1049K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek V4 Pro and Gemini 3.5 Flash
DeepSeek V4 Pro is made by deepseek while Gemini 3.5 Flash is from google. DeepSeek V4 Pro has a 1049K token context window compared to Gemini 3.5 Flash's 1049K. On pricing, DeepSeek V4 Pro costs $1.74/M input tokens vs $1.5/M for Gemini 3.5 Flash.
Per 1M tokens
Gemini 3.5 Flash wins input (1.2× cheaper)·DeepSeek V4 Pro wins output (2.6× cheaper)
No community votes yet. On paper, DeepSeek V4 Pro has the edge — bigger model tier.
Style Comparison
DeepSeek V4 Pro uses 3.5x more emoji
