Also possible small typo in your "description": "non-deterministic, that, is the same prompt" > "non-deterministic, that is, the same prompt"

The API key is free but there is a charge everytime you use it. The cost is dependent on the model used and the number of tokens input and output.

I have set the default model to the lowest price of the useful models as this is a good starting point. If you want more capable models such as ChatGPT-4, you will pay more.

UPDATE - I'll add this to the documentation when I do an update

gpt.pl "what is the meaning of life"
[download]

$chat->prompt($prompt, $TEMP);
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what is the meaning of life

Use of uninitialized value $reply in concatenation (.) or string at /h
+ome/****/com/gpt.pl line 25.
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#!/usr/bin/env perl

my @BOOL = qw(false true);
my $VERBOSE = 0;

use warnings;
use strict;
use Getopt::Long;
use AI::Chat;

our $KEY = "my-key";
our $API = "OpenAI";
our $MODEL = "gpt-3.5-turbo-0125";
our $ROLE = undef;
our $TEMP = 1.0;

my ($prompt) = parseArgs();

my %h = (key => $KEY, api => $API, model => $MODEL);
defined $ROLE and $h{role} = $ROLE;
my $chat  = AI::Chat->new(%h);
my $reply = $chat->prompt($prompt, $TEMP);
print "$prompt\n\n";
print "$reply\n";


sub parseArgs {
  my @args = qw(prompt);
  my $usage = qq{usage: $0 @args [options]

prompt should be a quoted string.

options
-------
-key (default: $KEY) API key

-role The role to use for the bot in conversations. This tells the bot
+ what it's
 purpose when answering prompts. For example: "You are a world class c
+opywriter
 famed for creating content that is immediately engaging with a lighth
+earted,
 storytelling style".

-temperature (default: $TEMP) The creativity level of the response (de
+fault:
 1.0). Temperature ranges from 0 to 2. The higher the temperature, the
+ more
 creative the bot will be in it's responses.

-verbose (default: $BOOL[$VERBOSE])
};

  my $result = GetOptions
    (
     'key=s' => \$KEY,
     'role=s' => \$ROLE,
     'temperature=f' => \$TEMP,
     'verbose!' => \$VERBOSE,
    );
  $result or print $usage and exit;
  @ARGV == @args or print $usage and exit;
  return @ARGV;
}
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$chat->prompt($prompt, $TEMP);
is returning undefined.

Have you tried checking $chat->success?

promt returns undef if no prompt parameter is supplied - or more precisely, if the prompt parameter is not a non-zero length string.

Yes. $chat->success() is true in the following. But $reply is undef.

It's probably because I haven't properly set up my openai account. I got the api key but I probably need to give it my credit card or something.

The following

my $chat  = AI::Chat->new(%h);
$chat->success() or die sprintf "error 1: %s\n", $chat->error();
print "$chat\n";
my $reply = $chat->prompt($prompt, $TEMP);
$chat->success() or die sprintf "error 2: %s\n", $chat->error();
defined $reply or die sprintf "error 3: %s\n", $chat->error();
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prints:

AI::Chat=HASH(0xa0042da30)
error 3:
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The first version of AI::Image is now on CPAN

Comments welcome as always...