The machines have been programmed to banter and learn from each other, and had been trained to act like humans from movies and You Tube, Mr Goertzel told the audience.
Robots could be 'as smart as people' in as little as three years, Mr Goertzel predicted.
Their malleable skin is controlled by dozens of motors, while computers in their torsos help with vision and movement.
They can also connect to Wi Fi to use cloud computing, where they will eventually share a vast amount of knowledge.
While Sophia has some impressive capabilities, she does not yet have consciousness, but Hanson said he expected that fully sentient machines could emerge within a few years.
Okay, it’s time to have an open and frank discussion about the battle of the sexes and the dating game.
Robots would be able to work with humans in factories, customer service and medicine but would also become our friends, said Hanson, who did not rule out eventual robot-human romantic relationships.'As the AI matches and exceeds human levels of intelligence we hope they'll help us solve the world's great problems,' he added.
It was a spooky sight, two life-like disembodied robot torsos discussing the pros and cons of humans in front of a nervously laughing audience in Hong Kong.
Artificial intelligence is the dominant theme at this year's sprawling Rise tech conference and the live robot exchange took the AI debate to another level.
It’s far too complex, scary and difficult for mere mortals – so let’s bridge the gap by asking both men and women what doesn’t work when it comes to online dating.
To explore this topic, I pulled aside two individuals who I knew were hunting for a long-term relationship using online dating websites, and asked them about their experiences with the services.
Robots could be 'as smart as people' in as little as three years, company spokesman and chief scientist Ben Goertzel predicted.