<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
What is the most expensive object ever sold at auction and how much did it sell for?<|im_end|>
<|im_start|>assistant
The most expensive object ever sold at auction is the painting "Salvator Mundi" by Leonardo da Vinci, which sold for $450.3 million at Christie's in New York in November 2017.<|im_end|>
<|im_start|>user
Is the Crown Prince the richest man in the world? If he’s not provide a list of the richest in order of net worth and show their net worth.<|im_end|>
<|im_start|>assistant
No, the Crown Prince of Saudi Arabia is not the richest man in the world. According to Forbes, as of May 2023, the richest people in the world are:
1. Bernard Arnault and family (net worth $236.6B), Chairman and CEO of LVMH Moët Hennessy Louis Vuitton
2. Elon Musk (net worth $176.9B) , CEO of Tesla, SpaceX, Twitter; founder or co-founder of several other companies including X.com (now Paypal), Neuralink, and OpenAI
3. Jeff Besos (net worth $133.3B), founder, ex-CEO and currently executive chairman of Amazon
4. Larry Ellison (net worth $121.8B) - founder, chairman, CTO and ex-CEO of Oracle
5. Bill Gates (net worth $114B) - co-founder and ex-CEO of Microsoft; his wealth is currently invested into diversified holdings including investments in zero-carbon energy.<|im_end|>
<|im_start|>user
What is the most expensive thing ever sold at auction in the category of objects?<|im_end|>
<|im_start|>assistant
The most expensive object ever sold at auction is Leonardo da Vinci's Salvator Mundi. It was sold at Christie's in New York in 2017 for $450.3 million. The painting is a portrait of Jesus Christ, and it is believed to have been painted by da Vinci in the early 16th century. It is one of only a handful of paintings by da Vinci that are still in existence, and it is considered to be one of the most important works of art in the world.

Here is a list of the top 10 most expensive objects ever sold at auction:

1. Leonardo da Vinci's Salvator Mundi ($450.3 million)
2. Les Femmes d'Alger (Version O) by Pablo Picasso ($179.4 million)
3. The Gigayacht ($168 million)
4. Giacometti's Pointing Man ($141.3 million)
5. Rabbit by Jeff Koons ($91.1 million)
6. Portrait of an Artist (Pool with Two Figures) by David Hockney ($90.3 million)
7. Oppenheimer Blue Diamond ($57.5 million)
8. The Pink Star Diamond ($71.2 million)
9. The Hope Diamond ($45.5 million)
10. The Steinway D-274 Concert Grand Piano ($3.87 million)<|im_end|>