Comparison

DeepSeek V4 Pro vs Gemini 3.1 Pro Preview

Per input token, DeepSeek V4 Pro runs 78% cheaper than Gemini 3.1 Pro Preview. Output pricing favors DeepSeek V4 Pro, 93% less per token than Gemini 3.1 Pro Preview.

FieldDeepSeek V4 Pro
Gemini 3.1 Pro Preview
ProviderDeepSeekGoogle
Context window1M
Max output384K
Input / 1M$0.43578% cheaper$2.00
Output / 1M$0.8793% cheaper$12.00
Cached input / 1M$0.003698% cheaper$0.20
Batch discount50%
Release date

Worked cost examples

Estimated monthly cost on three common usage shapes

WorkloadDeepSeek V4 ProGemini 3.1 Pro Preview

Chatbot

800 input / 200 output tokens per request, 100,000 requests/month

$52.20cheaper$400.00

RAG pipeline

6,000 input / 700 output tokens per request, 30,000 requests/month

$96.57cheaper$612.00

Batch summarization

20,000 input / 1,500 output tokens per request, 5,000 requests/month

$50.03cheaper$290.00

DeepSeek V4 Pro vs Gemini 3.1 Pro Preview FAQ

Is DeepSeek V4 Pro cheaper than Gemini 3.1 Pro Preview?
DeepSeek V4 Pro costs $0.435 per 1M input tokens versus $2.00 for Gemini 3.1 Pro Preview — DeepSeek V4 Pro is 78% cheaper per input token.
Which is cheaper for output tokens, DeepSeek V4 Pro or Gemini 3.1 Pro Preview?
DeepSeek V4 Pro charges $0.87 per 1M output tokens; Gemini 3.1 Pro Preview charges $12.00 per 1M output tokens.
Do DeepSeek V4 Pro and Gemini 3.1 Pro Preview offer cache pricing?
DeepSeek V4 Pro discounts cached input to $0.0036 per 1M tokens. Gemini 3.1 Pro Preview discounts cached input to $0.20 per 1M tokens.

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