DeepSeek is both insecure (the cloud app) and very secure (the open source model). In this focus paper on DeepSeek, which emerged from the AI expert group of the IT Klub Mainz & Rheinhessen, the background to DeepSeek, the app and the various DeepSeek models are discussed. First of all: every company can achieve more with open source AI than with ChatGPT.
What is DeepSeek?
With "DeepSeek", the exceptional language model named R1 is primarily referred to, which what published by a Chinese company called "DeepSeek". AI-language models are also referred to as LLMs, which stands for "Large Language Model".
What is possible with a DeepSeek open source model is basically also possible with the powerful open source models of other providers (also from Europe).
With R1, DeepSeek what able to generate a language model that is as good as "ChatGPT". DeepSeek stirred up attention, because their app broke all records in no time due to the quality of R1 and thus received maximum attention.
What makes DeepSeek so special?
Due to numerous outstanding features, DeepSeek has stirred up the AI market. The DeepSeek app became the most downloaded app in no time. Some of the reasons for its success:
High intelligence factor
DeepSeek models can have a very large number of neurons while requiring only a fraction of them per task. DeepSeek has also invented sophisticated training methods.
More efficient training and response behavior
Through selective activation of experts, the computational cost is significantly reduced compared to models whose neural network is always fully activated.
Lower costs
Through selective model architecture, the costs for operation are significantly lower than with models like ChatGPT from OpenAI.
Open source & secure
Everyone can become "OpenAI": DeepSeek models are freely available and can be locally run. The local version comes without any data transfer. The following graph illustrates this:

Open source AI models can be implanted into AI systems by simply downloading a file. The model does not send any data anywhere. As an analogy, imagine a text file that cannot communicate with anything or anyone.
Recipe for success published
To top it all off, DeepSeek has revealed how anyone can create an AI model that can compete with ChatGPT.
What does "DeepSeek" mean?
The term "DeepSeek" is often used as a synonym for various terms that have different meanings:
| Term | Meaning | Properties |
|---|---|---|
| DeepSeek | Chinese company |
“AI recipe” given away, startup?, strokes of genius |
| DeepSeek R1 |
Powerful language model |
Open source, highly powe |




My name is Klaus Meffert. I have a doctorate in computer science and have been working professionally and practically with information technology for over 30 years. I also work as an expert in IT & data protection. I achieve my results by looking at technology and law. This seems absolutely essential to me when it comes to digital data protection. My company, IT Logic GmbH, also offers consulting and development of optimized and secure AI solutions.