What are these parameters though?

Coefficients in neural network. Hard to tell what they adjust exactly, but you are free to fine tune them and see what happens. There are tooltips if you hover cursor over the field, but they are not very informative, except recommended ranges for the value.

"seed" is a number used to "seed" neural network. If set to 0 it will use random seed for every pass. You will always get different completion texts. If you set it to some numeric value, it will use that value every time and you will always get same text for same phrase. If you want to play with other settings, set seed to some value, to view how settings will change output, otherwise you will get different texts each time and will not notice changes coming from changing other settings.

Where it seemed to have access to government 3 letter agency databases.

It does not have access to anything, really. GPT just try to continue text in the way it trained. That's all. It's like somebody read all texts on Earth and figure out the most probable words sequences that should follow some already existing sequence. Nothing more, nothing less. There are no any texts at all, just, say, a list of all words and neural network coefficients that select next words sequence using previous sequence as input.

There are no any magic or even some complex things. It's just a simple pre-trained neural network that sets output according to input as trained.

What are these parameters though?

Coefficients in neural network. Hard to tell what they adjust exactly, but you are free to fine tune them and see what happens. "seed" is a number used to "seed" neural network. If set to 0 it will use random seed for every pass. You will always get different completion texts. If you set it to some value it will use that value every time and you will always get same text for same phrase. If you want to play with other settings, set seed to some value, to view how settings will change output, otherwise you will get different texts each time and will not notice changes coming from changing other settings.

Where it seemed to have access to government 3 letter agency databases.

It does not have access to anything, really. GPT just try to continue text in the way it trained. That's all. It's like somebody read all texts on Earth and figure out the most probable words sequences that should follow some already existing sequence. Nothing more, nothing less. There are no any texts at all, just, say, a list of all words and neural network coefficients that select next words sequence using previous sequence as input.

There are no any magic or even some complex things. It's just a simple pre-trained neural network that sets output according to input as trained.

What are these parameters though?

Coefficients in neural network. Hard to tell what they adjust exactly, but you are free to fine tune them and see what happens.

Where it seemed to have access to government 3 letter agency databases.

It does not have access to anything, really. GPT just try to continue text in the way it trained. That's all. It's like somebody read all texts on Earth and figure out the most probable words sequences that should follow some already existing sequence. Nothing more, nothing less. There are no any texts at all, just, say, a list of all words and neural network coefficients that select next words sequence using previous sequence as input.

There are no any magic or even some complex things. It's just a simple pre-trained neural network that sets output according to input as trained.