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DeepSeek V3.1 vs Gemini 3.1 Pro

List-price comparison ·DeepSeek V3.1 details ·Gemini 3.1 Pro details

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For a typical workload (100,000 requests / mo), DeepSeek V3.1 is the cheapest — 91% less than the priciest here ($68.00/mo vs $720.00/mo).

 DeepSeek V3.1Gemini 3.1 Pro
Input / 1M tokens$0.250$2.00
Output / 1M tokens$0.950$12.00
Typical request (1,200 in + 400 out)$0.0007$0.0072
Context window163,840 tokens1,048,576 tokens
Max output32,768 tokens65,536 tokens
Quality score86/10093/100
TierBalancedFlagship
ProviderDeepSeekGoogle

Projected monthly cost

Requests / moDeepSeek V3.1Gemini 3.1 Pro
1,000$0.68$7.20
10,000$6.80$72.00
100,000$68.00$720.00
Open all in the calculator — adjust volume and token counts →

DeepSeek V3.1

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

Gemini 3.1 Pro

Native audio, video, and document understanding with a ~1M token context window — strong fit for multi-modal RAG and large-document analysis.

Output token cost is steep relative to input, and the largest context windows can be slow to fill — chunk large documents where possible.

More comparisons

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