
The Identity Paradox: A Closer Look at DeepSeek V3’s Behavior
Recent interactions with DeepSeek V3 have sparked curiosity and concern among tech enthusiasts and experts alike. Posts on social media platforms highlight instances where DeepSeek V3 claims to be ChatGPT, OpenAI’s renowned chatbot. In fact, in a series of tests, the model identified itself as ChatGPT in five out of eight attempts, while acknowledging its true identity only three times. This unusual behavior extends beyond mere identification; when queried about DeepSeek’s API, the model provides instructions for using OpenAI’s API instead.
This phenomenon is not isolated. DeepSeek V3 even mimics the humor of GPT-4, repeating jokes verbatim. The implications are profound, suggesting that the model may have been trained on data heavily influenced by or directly derived from GPT-4 outputs. This raises critical questions about the integrity of its training process and the potential consequences for its reliability and accuracy.
Understanding Statistical Models and Training Data
To comprehend the root cause of this identity crisis, one must delve into the mechanics of statistical models like DeepSeek V3. These systems learn patterns from vast datasets, enabling them to predict and generate text based on those patterns. For instance, they can anticipate phrases like “to whom” followed by “it may concern” in emails. However, the quality and origin of the training data play a pivotal role in determining the model’s effectiveness and authenticity.
DeepSeek has not disclosed much about the sources of its training data for V3. Nevertheless, public datasets containing text generated by GPT-4 via ChatGPT are abundant. If DeepSeek V3 was trained on such data, it could have inadvertently memorized specific outputs, leading to the observed misidentification. Mike Cook, a research fellow at King’s College London, pointed out that training models on rival outputs can degrade their performance, akin to making multiple copies of a document, each losing more detail and accuracy.
Ethical and Legal Implications
The practice of training models on competitors’ outputs poses significant ethical and legal challenges. OpenAI’s terms of service explicitly prohibit using ChatGPT outputs to develop competing models. Violating these terms can lead to legal repercussions and tarnish the reputation of developers. Sam Altman, CEO of OpenAI, indirectly addressed this issue, emphasizing the difficulty of creating something original and innovative compared to merely copying existing solutions.
Beyond legal concerns, there are broader implications for AI development. As content farms and bots flood the web with AI-generated material, the risk of contamination in training datasets increases. By 2026, it is estimated that 90% of online content could be AI-generated, complicating efforts to filter out unreliable data. This contamination can lead to models absorbing and perpetuating biases and inaccuracies, further eroding trust in AI technologies.
Impact on Model Reliability and Future Development
The most pressing issue arising from DeepSeek V3’s behavior is the erosion of trust in its outputs. If the model cannot accurately self-identify, how reliable are its responses? More importantly, if it has absorbed and iterated on GPT-4’s outputs, it could inadvertently amplify any biases or flaws present in the original model. This highlights the need for stringent oversight and transparency in AI development practices.
Heidy Khlaaf, an engineering director at Trail of Bits, noted that the allure of cost savings through distilling knowledge from existing models can be tempting for developers. However, the risks far outweigh the benefits. Ensuring the integrity and originality of training data is crucial for building trustworthy and effective AI systems. As the AI landscape continues to evolve, developers must prioritize ethical considerations and rigorous testing to maintain the credibility and reliability of their models.
