Check your API key!

I've modified your code for obtaining the API key and hardcoded it into the subroutine...with a valid API key, your code works for me. With an invalid key, I get the same error as you are seeing.

#!/usr/bin/perl

use v5.030;
use utf8;
use AI::Embedding;

my $ini_path = qw( /Users/mymac/Documents/1.тай&#108
+5;ый.txt );
# get key
my $ref_config = get_api_key();
$DB::single = 1;
my %h = %$ref_config;

## keep ^^^ this the same

my $embedding = AI::Embedding->new(
    api => 'OpenAI',
    key => $h{key},
);

## ^^^this works now
## this doesn't:

my $csv_embedding  = $embedding->embedding('I demand a shrubbery');
my $test_embedding = $embedding->test_embedding('We are the knights wh
+o say nyet');
my @raw_embedding  = $embedding->raw_embedding('great eddie murphy sho
+w');

my $cmp = $embedding->comparator($csv_embedding);

my $similarity = $cmp->($test_embedding);
my $similarity_with_other_embedding = $embedding->compare($csv_embeddi
+ng, $test_embedding);


say $cmp;
say $similarity;
say $similarity_with_other_embedding;

## don't change anything about the subroutine

sub get_api_key {
    return {
        'key' => 'sk-abc123',
    };
}

__END__
[download]

Output:

CODE(0x1cf363a5c48)
-0.00931772883675172
-0.00931772883675168
[download]

In the next release, I will put some more helpful error message that directs the user to check their AP key...thanks for discovering this issue :)