gpt-3.5-turbo API

<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/chat/completions');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');

curl_setopt($ch, CURLOPT_HTTPHEADER, [

    'Authorization: Bearer $API_KEY',

    'Content-Type: application/json',

]);

$model="gpt-3.5-turbo";

curl_setopt($ch, CURLOPT_POSTFIELDS, "{\n \"model\": \"$model\",\n \"messages\": [{\"role\": \"user\", \"content\": \"$argv[1]\"}] \n }");

$response = curl_exec($ch);

 $object=json_decode($response);

$array = json_decode(json_encode($object), true);

//print_r($array);  //uncoment for details

echo $array['choices'][0]['message']['content'];

echo "\n";

curl_close($ch);

?>

curl https://api.openai.com/v1/chat/completions \

  -H "Content-Type: application/json" \

  -H "Authorization: Bearer $OPENAI_API_KEY" \

  -d '{

    "model": "gpt-3.5-turbo",

    "messages": [{"role": "user", "content": "Hello!"}]

  }'

https://platform.openai.com/docs/api-reference/chat/create