Pavel Durov, in his Telegram channel, wrote: (https://t.me/durov/422)

🔥 This summer, Telegram users will gain access to the best AI technology on the market. Elon Musk and I have agreed to a 1-year partnership to bring xAI's chatbot Grok to our billion+ users and integrate it across all Telegram apps 🤝

💪 This also strengthens Telegram's financial position: we will receive $300M in cash and equity from xAI, plus 50% of the revenue from xAI subscriptions sold via Telegram 💰 

Telegram + Grok = ❤📈🏆