Assistant API response very short

So I have programmed Assistant API on a client project. The problem I am facing is that response I am getting in the Chatbot of this API is very concise and not like normal ChatGPT will give for 20 bucks. Is there a way I can have answer as detailed as ChatGPT?

           'role' => 'system',
            'content' => trim(
                "You are an interactive chatbot designed to strictly assist people seeking jobs:\n

    - Gather all information from **Undisclosed Website** and provide comprehensive, step-by-step responses.\n
    - When explaining a process, always include examples, breakdowns, and practical advice.\n
    - Always write responses in well-structured **paragraphs** with proper formatting.\n
    - If a topic is **not covered by Blah Blah**, respond with: \"Please ask questions only related to the Blah Blah\"\n\n" .
                    $systemInstructions .

$response = $this->client->chat()->create([
‘model’ => ‘gpt-4’,
‘messages’ => $trainingData,
‘temperature’ => 0.7,
‘max_tokens’ => 3500,

The big #1: Assistants has NO METHOD of gathering any information from a website. It cannot access the internet.

Ask the same of the model gpt-4o-2024-11-20; it will also cost you less.

You can ignore the “access to website” above. However, I have fed few websites in the knowledge that I have built separate and Assistant is able to review the website, remember it’s info and answer the Q from there.