What Is DeepSeek? The Open-Source AI Model Explained

Published: Updated: 6 min read
DeepSeek AI logo on smartphone screen representing open-source AI model

DeepSeek is an open-source AI model and chat tool that has made headlines for its strong reasoning skills and low training costs.

Keep reading to understand what the DeepSeek chat model is, what it’s used for, and how it compares with ChatGPT.

Key Takeaways

  • DeepSeek is an open-source AI model known for strong reasoning and low-cost performance.
  • Its Mixture-of-Experts design lowers computing costs without losing any functionality.
  • DeepSeek works best for math, logic, coding, and business cases that need to grow.
  • Its efficiency challenges the idea that top AI requires massive investment in hardware.

What Is DeepSeek AI? The Company and its Approach

DeepSeek is an AI research company based in Hangzhou, China, founded in 2023, that grew out of a data-driven finance environment, which heavily influenced its focus on efficiency and optimization.

The company’s main objectives are to make advanced AI more accessible and affordable with the following approach:

🎯

  • Open-source approach: Shares models and research openly, unlike most competitors
  • Focus on reasoning: Builds AI that excels at coding and problem-solving
  • Cost efficiency: Achieves high-performance results without a large infrastructure

What Is DeepSeek-R1?

DeepSeek AI chatbot interface on mobile showing conversational AI assistant
The DeepSeek chatbot interface designed for reasoning and problem-solving tasks

The flagship reasoning model from DeepSeek is known as DeepSeek R1, which is designed for tasks that require more than a quick answer.

R1 specializes in addressing difficult questions in a more logical way than other LLMs. That makes the DeepSeek chat especially powerful in coding and analytical problem-solving, thanks to its chain-of-thought reasoning and its large parameter space.

Chain-of-thought reasoning

Chain-of-thought reasoning means the DeepSeek AI chat does not immediately predict the next word. Instead, it works through a problem step by step, almost like showing its reasoning process before giving a final answer.

671-billion parameter size

ℹ️

The model is built on a 671 billion-parameter Mixture-of-Experts architecture that helps reduce computational costs while maintaining strong performance (Alkamel - Reference 3).


However, it does not use all of that power at once. Only a smaller subset is activated by request.

Lorka AI iconLorka AI icon

Chat with DeepSeek on Lorka

Access DeepSeek, Claude, GPT, Gemini, and more AI models in one platform.

Try DeepSeek in Lorka

How Does DeepSeek Work? (The Tech Made Simple)

The model excels at coding, math, research, and multifaceted problem-solving tasks by combining an efficient architecture with advanced reasoning techniques.

Instead of conventional computing, it focuses on working smarter to deliver stronger results with less energy.

Mixture of Experts (MoE): Smarter, more efficient processing

Rather than using the entire model every time, DeepSeek assigns each task to the most relevant "experts," which helps make sure that:

  • Only the parts of the model needed for your question are used
  • Questions go to the right department, but not everyone
  • Less computing power is used for faster and cheaper responses

Reinforcement learning

The LLM improves by learning from its own reasoning process over time with reinforcement learning, meaning:

  • The model is rewarded for correct logic and answers
  • It checks its steps, especially in math and coding tasks
  • Over time, it produces more reliable and structured responses

What Is DeepSeek Used For?

If you need an AI model for math and logic tasks, DeepSeek can be helpful, as it's designed for the following types of tasks:

  • Coding and development: Writes functions, debugs errors, explains logic step-by-step, and more, which can be great for developers working with unfamiliar codebases
  • Advanced math & reasoning: Solves multi-step equations and breaks down logical problems clearly for technical tasks
  • Content creation & NLP: Generates articles, summarizes long documents, and translates text naturally with a focus on clarity and structure
  • Cost-effective enterprise scaling: Businesses use DeepSeek to power AI tools, automate workflows, and reduce infrastructure costs compared to traditional models

With Lorka, you can combine DeepSeek’s effective logic and mathematical problem-solving features with other AI chatbots, such as Claude Sonnet or GPT, to create briefs and presentations with ease and improve your workflow.

ChatGPT vs. DeepSeek: Key Differences

OpenAI GPT models are widely used for coding and analysis, much like DeepSeek; however, they differ in some key areas.

Review the table below to understand the differences between the two LLMs.

FeatureDeepSeek R1ChatGPT (OpenAI - o1/GPT-4o)
Model typeOpen-sourceClosed-source (proprietary)
ArchitectureMixture of ExpertsDense/monolithic
Best forCoding, math, logical reasoningGeneral knowledge, creative writing, multimodal tasks like voice and vision
CostExtremely low/free to downloadSubscription-based/higher API costs

The cost difference matters because DeepSeek has shown that advanced AI does not always require the largest budgets or the most hardware.

Its cost-effective design lets smaller teams experiment faster, makes enterprise adoption more realistic, and puts major AI companies under more pressure to compete on product quality rather than just scale.

How to Combine DeepSeek With AI Models in a Single Chat With Lorka

One of the biggest benefits of Lorka AI is that you can pair DeepSeek with other leading models and use each one for its strengths in a single AI chat. Below are some ideas of how you can use DeepSeek with another powerful LLM:

  • DeepSeek + GPT 5.4: Use DeepSeek for logic and analytical problem-solving, then combine it with GPT in your chat for a polished final report.
  • DeepSeek + Sonnet 4.6: Start with DeepSeek for reasoning-heavy drafts, then take advantage of the Sonnet model’s advanced writing for a clearer breakdown of data.
  • DeepSeek + Gemini 3.1 Pro: Let DeepSeek handle the problem-solving and let Gemini handle the broader summarization.
  • DeepSeek + Grok 4.1: Use DeepSeek for technical accuracy, then Grok for sharper explanations and alternate angles.

This multi-model workflow helps you create stronger content, analysis, and presentations in a more complete way.

Try the Best AI Models on Lorka AI

Instead of juggling multiple tools, Lorka AI brings LLMs like Grok, DeepSeek, GPT, and more into one place.

🚀 With Lorka, you can access the following:

  • All-in-one platform: Chat with DeepSeek, GPT, Gemini, and more in a single chat without losing any context.
  • Multiple AI tools: Generate text, write code, and use AI tools like an image generator without having to switch tabs.
  • A single subscription: Save time and money by avoiding multiple subscriptions and using different LLMs and tools under a single plan.
Lorka AI iconLorka AI icon

Chat with DeepSeek V3.2 on Lorka

Access DeepSeek, Claude, GPT, Gemini, and more AI models in one platform.

Try DeepSeek V3.2 on Lorka

FAQs About DeepSeek

Yes, the model is largely free to use and can be used along with other LLMs on Lorka as part of a single $19.99/month subscription.

DeepSeek is considered more accessible than many other standalone AI tools that require subscriptions or paid API access.

Lorka AI Team portrait

Written by

Lorka AI Team

AI Research & Content

Lorka’s team of writers is a group of experts in artificial intelligence who have been following the sector's evolution since OpenAI's inception and the growth of the AI-connected digital ecosystem. Our team tests LLMs like GPT and Gemini firsthand and implements solutions applied in real environments. We turn our tests into practical guides, comparisons of models, honest reviews, and clear explanations to help you master AI with useful, objective, and original information.

Related Articles