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Two Ways You Can Build Custom AI Assistants with GPT-4o - and One is Free!

Otto Williams

Jun 20, 2024

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OpenAI's latest model, GPT-4o, offers unparalleled levels of intelligence through advanced reasoning, logic, and more, which users can leverage for nearly unlimited tasks. That said, getting ChatGPT -- which uses GPT-4o -- to perform your desired task typically requires a lot of prompting. It doesn't have to.

By creating a custom AI assistant, you can circumvent elaborate instructions whenever you want to complete a specific function with GPT-4o. You can incorporate instructions, including the task you want it to perform, the tone you want it to use, and more.

If you use ChatGPT for repetitive tasks in your personal life or business workflow, taking a few minutes to set up custom chatbots could save you time in the long run. Setting up these custom AI assistants is easy and requires no coding. There are two ways to make custom GPT-4o assistants: ChatGPT and Both are easy to use, and each offers different perks. If you are a ChatGPT user, staying within the platform may be more convenient for creating your custom GPT; you'll need ChatGPT Plus, however, which costs $20 per month. meanwhile lets you build an assistant with all the most popular models from OpenAI, Meta, Anthropic, Google, and more -- and it's free.

Read on to learn how to use ChatGPT and to create a custom AI assistant.


Getting started with ChatGPT is easy. First, visit ChatGPT and log in to your OpenAI account (create one if you haven't already). Next, click on your profile picture in the top-right corner > My GPTs > Create. The rest is quite intuitive: ChatGPT prompts you with questions you can answer to customize your chatbot, including how you would like the chatbot to interact, the chatbot's tone, what should be avoided and emphasized, and more. You can see some of the questions below. When you are done setting up your custom AI assistant, you can publish it to the GPT store for everyone to see, get a custom shareable link for limited sharing, or keep it private for just your use. Once you hit Create, you can access your creation from the sidebar underneath ChatGPT anytime you want.

Since I created a custom GPT to translate text into Spanish, the next time I want it to perform that task, I don't even have to ask; I can input the text I want to have translated.

One of's unique features is that its platform lets you explore some of the latest and most advanced models. You can use that to your advantage when creating your AI assistant -- with the ability to build a custom chatbot grounded in GPT-4o, Claude 3 Opus, Llama 3, Gemini 1.5 Flash, and more. notes that these models are enhanced by, meaning the experience may not be the exact same that you would have in the native chatbot. However, it is a great and fun way to try all the best models in one place, circumventing the need to open several applications.

To create a custom AI assistant, visit, click the "More" button at the top of the search bar, and select the blue "Add new" button, which is next to "Assistants." You will be brought to a window where you can customize your AI assistant, select the base AI model you'd like your assistant to use, and type in a name and instructions. Creating an Assistant on is less intuitive, as you must type in all the details you want the assistant to include. For that reason, try to be as detailed as possible. For example, I typed, "Take every text input and translate it into Spanish. Your tone is casual, as you are a friendly Spanish teacher," an instruction that combines the answers into two different ChatGPT questions.

Once you are done with your instructions, you can click on "Create." The custom assistant will then populate the top of the search bar, where you can select it and use it for future tasks. In my case, I can skip the prompting and have my custom AI assistant automatically translate any text into Spanish.

At Spectro Agency, we specialize in high-end digital marketing, app creation, AI-powered solutions, chatbots, software creation, and website creation. Let us help you leverage the power of custom AI assistants to enhance your business efficiency and productivity. Visit us at


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