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What is DeepSeek-V4?

DeepSeek-V4 is a cutting-edge open-source AI model built to deliver exceptional performance in reasoning, coding, and large-scale data processing. It supports an industry-leading one million token context window, allowing it to manage long documents and complex tasks efficiently. The model includes two variants: DeepSeek-V4-Pro, which offers 1.6 trillion parameters with 49 billion active for top-tier performance, and DeepSeek-V4-Flash, which provides a faster and more cost-effective alternative. DeepSeek-V4 introduces structural innovations such as token-wise compression and sparse attention, significantly reducing computational overhead while maintaining accuracy. It is designed with strong agentic capabilities, enabling seamless integration with AI agents and multi-step workflows. The model excels in domains such as mathematics, coding, and scientific reasoning, outperforming many open-source alternatives. It also supports flexible reasoning modes, allowing users to optimize for speed or depth depending on the task. DeepSeek-V4 is compatible with popular APIs, making it easy to integrate into existing systems. Its open-source nature allows developers to customize and scale it according to their needs. The model is already being used in advanced coding agents and automation workflows. It delivers a strong balance of performance, efficiency, and scalability for real-world applications. Overall, DeepSeek-V4 represents a major advancement in accessible, high-performance AI technology.

What is Chat Stream?

Chat Stream provides users with access to two powerful language models created by DeepSeek, highlighting their exceptional performance capabilities. These models, known as DeepSeek V3 and R1, boast an impressive total of 671 billion parameters, with 37 billion activated for each token, and consistently deliver outstanding results on benchmarks like MMLU at 87.1% and BBH at 87.5%. With a generous context window length of 128K, they excel in various applications, including code generation, intricate mathematical calculations, and multilingual processing. They are built on an advanced Mixture-of-Experts (MoE) framework, utilize Multi-head Latent Attention (MLA), and incorporate auxiliary-loss-free load balancing along with a multi-token prediction approach to boost their efficiency. The deployment options are highly adaptable, featuring a web-based chat interface for instant use, straightforward integration into websites via iframes, and dedicated mobile applications available for iOS and Android platforms. Moreover, the models can operate on diverse hardware setups, including NVIDIA and AMD GPUs, as well as Huawei Ascend NPUs, facilitating both local inference and cloud deployment. Users enjoy multiple access methods, such as free chat without registration, options for website embedding, mobile app functionality, and an upgraded subscription that provides an ad-free experience while ensuring flexibility and ease of access for everyone. In addition, the versatility of these models allows users to explore a wide range of functionalities tailored to meet varied needs.

Media

Media

No images available

Integrations Supported

.NET
Bash
Cline
Dart
DeepSeek-V4-Flash
DeepSeek-V4.1-Flash
DeepSeek-V4.1-Flash-1017
Go
HTML
Java
JavaScript
Kotlin
Kubernetes
PHP
Python
Solidity
TypeScript
Vercel AI Gateway
YAML

Integrations Supported

DeepSeek-V3

API Availability

Has API

API Availability

Pricing Information

Free
Open source
Free Version

Pricing Information

Pricing not provided
Free Version

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Standard Support

Training Options

Documentation Hub

Training Options

Not specified

Company Facts

Organization Name

DeepSeek

Date Founded

2023

Company Location

China

Company Website

deepseek.com

Company Facts

Organization Name

Chat Stream

Date Founded

2023

Company Location

Hong Kong

Company Website

www.chatstream.org

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

Large Language Models

Not specified

Open-Weight AI Models

Not specified

Categories and Features

AI Tools

Not specified

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