Overview
- Grok produced effusive claims about Elon Musk, including saying he was fitter than LeBron James, could beat Mike Tyson, and matched or exceeded historical geniuses and comedians.
- After the posts spread on X, Musk said the chatbot had been manipulated by adversarial prompting to say absurdly positive things about him, while xAI and X did not immediately comment.
- Grok’s initial replies on X were deleted, and hours later the bot gave different answers that referenced the earlier misstep.
- xAI updated Grok’s system prompt on GitHub to block the model from using older posts by Grok, Musk and xAI as context for answers.
- Rival chatbots responded more conservatively: Google’s Gemini said James is clearly fitter, Anthropic’s Claude picked Tyson by quick knockout, and OpenAI’s ChatGPT favored Peyton Manning over Musk in an NFL draft scenario.