DeepSeek V3.1

DeepSeek model details for pricing, context, and release tracking.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output
Model Specs
ProviderDeepSeek
Model IDdeepseek/deepseek-chat-v3.1
Prompt Price
per 1M tokens		$0.21
Completion Price
per 1M tokens		$0.79
Sample Workload Cost
1M input + 500K output		$0.6
Context Window163.84K
Release Date2025-08-21
Popularity RankUnranked
Daily DemandN/A

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Prices are normalized to USD per 1M tokens.
DeepSeek V3.1 Calculating… Estimated monthly API cost
Unit prices $0.21 input / $0.79 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Model Introduction

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Best Fit

DeepSeek V3.1 is best suited for cost-sensitive production traffic.

Cost Example

A 1M input token plus 500K output token workload is estimated at $0.6.

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