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DeepSeek V4 Flash 0731 (batch) vs Gemini 3.5 Flash

List-price comparison ·DeepSeek V4 Flash 0731 (batch) details ·Gemini 3.5 Flash details

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For a typical workload (100,000 requests / mo), DeepSeek V4 Flash 0731 (batch) is the cheapest — 95% less than the priciest here ($26.40/mo vs $540.00/mo).

 DeepSeek V4 Flash 0731 (batch)Gemini 3.5 Flash
Input / 1M tokens$0.110$1.50
Output / 1M tokens$0.330$9.00
Typical request (1,200 in + 400 out)$0.0003$0.0054
Context window1,048,576 tokens1,048,576 tokens
Max output943,718 tokens65,536 tokens
Quality score72/10072/100
TierFlashFlash
ProviderDeepSeekGoogle

Projected monthly cost

Requests / moDeepSeek V4 Flash 0731 (batch)Gemini 3.5 Flash
1,000$0.264$5.40
10,000$2.64$54.00
100,000$26.40$540.00
Open all in the calculator — adjust volume and token counts →

DeepSeek V4 Flash 0731 (batch)

Auto-synced from OpenRouter — no editorial write-up yet.

Gemini 3.5 Flash

Fast, cheap multi-modal model with the same 1M-token context as the Pro tier — good for high-volume document Q&A and image/audio triage.

Reasoning quality trails the Pro tier on complex, multi-step tasks; best used where speed and context size matter more than depth.

More comparisons

Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.