GenAI Platform API SDK compatibility

I have a question regarding the GenAI Platform that DigitalOcean started recently.

I have a LAMP stack droplet that make extensive use of ChatGPT API (gpt-4o model) on our website. I want to know if using the GenAI Platform replacing (or as an alternative option) the ChatGPT API will require a whole lot of rewrite code in terms of API calls ?

This is what I have so far :

$client = OpenAI::client($OPENAI_API_KEY);
$response = $client->chat()->create([
    'model' => $model,
    'messages' => [
        ['role' => 'user', 'content' => $prompt],
    ],
    'temperature' => $temperature,
    'max_tokens' => $max_tokens,
    'top_p' => $top_p,
    'frequency_penalty' => $frequency_penalty,
    'presence_penalty' => $presence_penalty
]);
$answer = trim($response['choices'][0]['message']['content']);

Is DO’s GenAI’s API syntax as compatible as OpenAI ?