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DeepSeek V3.1 Base Model Specs, Costs & Benchmarks (August 2025)

DeepSeek V3.1 Base, developed by DeepSeek, features a context window of 163.8K tokens. The model costs $0.20 per million tokens for input and $0.80 per million tokens for output. It was released on August 20, 2025, and has achieved impressive scores in various benchmarks.
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Overview

DeepSeek V3.1 BaseDeepSeek V3.1 Base
Model Provider
The organization behind this AI's development
DeepSeek logoDeepSeek
Input Context Window
Maximum input tokens this model can process at once
163.8K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
Not specified
tokens
Release Date
When this model first became publicly available
August 20th, 2025

Pricing

DeepSeek V3.1 BaseDeepSeek V3.1 Base
Input Token Cost
Cost per million input tokens
$0.20
per million tokens
Output Token Cost
Cost per million output tokens
$0.80
per million tokens

Capabilities & Features

DeepSeek V3.1 BaseDeepSeek V3.1 Base
Input Types
Supported input formats
text
Output Types
Supported output formats
text
Tokenizer
Text encoding system
DeepSeek
Key Features
Advanced capabilities
Standard capabilities only
Open Source
Model availability

Benchmarks

DeepSeek V3.1 BaseDeepSeek V3.1 Base
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Not available
MMMU
Measures understanding of combined text and images across various domains
Not available
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Not available

Compare This Model

See how DeepSeek V3.1 Base compares with other top models