Claude says its DeepSeek when asked in Chinese

I got the same answer in Claude workbench which does not have a system prompt. On Web UI I was always getting Claude as answer.

Anthropic recently complained about DeepSeek using Claude to train their models. This response however shows that Claude is also doing the similar.

Tell me why anyone thinks these chatbots are intelligent.

Hmm, I tried asking in Chinese and it still identified itself as Claude by Anthropic.

You need to ask via API to make sure that there is no system prompt.