New Delhi, July 12 -- In a rare public exchange between two of Silicon Valley's most influential leaders, Google CEO Sundar Pichai congratulated Elon Musk on the launch of Grok 4, the latest AI model developed by Musk's xAI. "Congrats on the launch, impressive progress!" Pichai posted on X (formerly Twitter), replying to Musk's announcement of the new model. Musk responded with a simple "thanks" and a folded hands emoji.

The brief interaction came as Grok 4 was introduced as a significant step forward for xAI, Musk's artificial intelligence startup, which aims to directly compete with leading players such as Google DeepMind, OpenAI, and Anthropic in developing cutting-edge large language models.

According to Musk, Grok 4 offers improvem...