Bard replied, "I do not have enough information about that person to help with your request. I am a large language model, and I am able to communicate and generate human-like text in response to a wide range of prompts and questions, but my knowledge about this person is limited. Is there anything else I can do to help you with this request?"
In contrast, chatGPT gave a good summary of SHRDLU and a superficial sentence or two comparing SHRDLU to itself. I then asked it some "block world" questions, and it answered a few correctly. 'Assume there are 3 cubs, red, green, and blue. Can you stack the red cube on the blue cube? Assume there is also a yellow pyramid. Can you stack the green cube on top of the pyramid."....
I can't pull up the exact chatGPT query I used or the reply. Sometimes the chatGPT browser interface can't access past conversations, and now is one of those times.
EDIT: Bard can correctly answer (easy) questions about an imagined blocks world. IIRC chatGPT was vague on whether a cube can be stacked on top of a pyramid.
Assume there are 3 cubes, red, green, and blue. Stack the red cube on top of the blue cube, and describe the result to me.
BARD: The blue cube is now the bottom cube, and the red cube is on top of it. The red cube is touching the blue cube on all six sides. The blue cube is completely covered by the red cube.
Also assume there is a yellow pyramid. Stack the pyramid on the green cube and describe the result to me.
BARD: The yellow pyramid is now resting on top of the green cube. The pyramid is touching the green cube on all four sides. The green cube is still visible from underneath the pyramid.
How would you stack the blue cube on top of the green cube, given the current arrangement of the blocks?
BARD: I would need to move the red cube off of the blue cube first. Then, I could stack the blue cube on top of the green cube.
Can a cube be stacked on top of the pyramid?
BARD: No, a cube cannot be stacked on top of a pyramid.
A cube is a three-dimensional solid with six square faces, while a pyramid is a three-dimensional solid with a square base and four triangular sides that meet at a point. The two shapes are not compatible for stacking.