These days, businesses are constantly thinking about how to use the ChatGPT API to the best of their (and its) ability.

The fact that OpenAI has recently released an API that is 10x times cheaper in price than their flagship GPT-3.5 model has also led to the emergence of numerous applications in various industries.

Since 2013, Rubyroid Labs has developed over 300 software development projects, including those that required OpenAI integration. If you are looking for a partner to integrate OpenAI into your Ruby on Rails application, contact us right away.

In this article, we share insights on how to use Chat GPT API for various business cases.

What is ChatGPT API?

After the launch of chatbot, developers one by one tried to figure out “does ChatGPT have an API?” And if so, “is ChatGPT API free?”

In March 2023, OpenAI made its API available to developers. The ChatGPT API is a language processing tool built on GPT technology. Recently, the company released its GPT-4 model, the latest version of the AI tool. It’s available through a waiting list only (as is its API). Currently, those waiting for GPT-4 can use the ChatGPT-3 model for projects. If you are wondering how to use GPT-3 API, you need to get an API key via the official website.

If comparing ChatGPT vs ChatGPT API, think of it like this: the latter was designed primarily for businesses with specific features in mind that they wish to implement.

ChatGPT is scalable and can handle large amounts of data. The API comes with a variety of SDKs and libraries to help developers integrate the model into their applications.

What’s more, developers can use the API to train their own models and customize the behavior of those models to their unique requirements.

Top 5 Chat GPT API Use Cases

Since the question “Does Chat GPT have an API” has been answered, let’s proceed to real use cases.

Companies of every vertical are keen on implementing ChatGPT’s API into their applications. This is what we do at Rubyroid Labs — integrate OpenAI capabilities into a customer’s application, whether it is insurance, education, retail or any other industry or business sector.

Now let’s take a look at ChatGPT API integration use cases.


With ChatGPT API, teachers can automate routine tasks, such as grading assignments and sending reminders to students.

Integrating ChatGPT API in educational apps can provide a range of benefits, such as personalized learning experiences, real-time feedback, and interactive virtual assistants. And students can use ChatGPT as an alternative to standard search engines when it comes to conducting research.

Human Resources

According to Eightfold AI, HR personnel already use 57% of AI-related tools in the management and onboarding process. If incorporating ChatGPT API into task management, it can accelerate the execution of their daily tasks, such as:

  • Job descriptions. Get text templates that can be reworked by HR further.
  • Job advertisements. Get a general ad description in a predetermined tone of voice.
  • Interview questions. The chatbot can help you determine applicable questions that recruiters ask candidates.
  • Polite job application denial. Generate a rejection email in a sympathetic and considerate tone.


Having Chat GPT integrated into the healthcare business helps assist with remote consultation, medical diagnoses, documentation, care coordination and more.

ChatGPT API is also a handy tool for doctors. With an API integrated in their work, doctors can get summaries of notes and Q&A sessions fast and use it for diagnosis, treatment, insurance and other processes.

Banking and Finance

Since Chat GPT does have an API, it can handle customer requests related to transactions or account balances, and provide financial advice. Other use cases include:

  • Fraud detection. Since the AI model analyzes vast amounts of transaction data, it can identify suspicious behavior far faster than humans.
  • Loan origination. With ChatGPT API integrated into a chatbot, customers can get real-time guidance on loans.
  • Compliance. AI models can ensure banks comply with all requirements and regulations since the AI monitors bank transactions and identifies potential violations.
  • Financial planning. Once an API for ChatGPT has been implemented, it can help create budgeting, debt management and retirement planning recommendations.

At Rubyroid Labs, we’ve been working with a client on integrating OpenAI into their insurance database software. Instead of a manual selection of insurance options, their customers can now get suggested insurance options based on the input they put into the chatbot.

We have expertise in integrating OpenAI into any banking & finance areas — contact us to discuss details about your project.

Sales and Marketing

ChatGPT for marketing has been the subject of many discussions recently. There are several cases where using ChatGPT API will benefit sales and marketing teams.

  • Generate copy. Ask an AI model to generate an entire blog post or help with an article outline.
  • Get ideas for content. Ask ChatGPT to brainstorm topics based on your existing content as well as research new ones.
  • Facilitate lead generation. Use a chatbot to interact with your customers and gather their contact information for lead generation.
  • Manage social media. Train ChatGPT to help you with scheduling, analyzing and advertising.

Examples of Chat GPT API Integration

While people wonder when the latest ChatGPT will be available as an API, there are several large-scale businesses that have integrated the current API into their software products.

Let’s take a look at them.


Quizlet announced a new tool, “Q-chat,” that is built on ChatGPT API usage.
Q-chat is an AI coach that engages students with questions based on data from their study materials. The conversation between an AI coach and a student is delivered through a chatbot.

With this tool, students can choose a study they want to be quizzed more on or practice a new language.


Due to the fact that ChatGPT is available via API, Speak was able to enhance their learning platform. It recently announced the launch of a plug-in that enables users to access learning experiences through OpenAI’s chat product.

Basically, whenever a user has difficulties with translation or explanation of messages across various languages, the plug-in provides answers. Speak has been testing the plug-in with early users and will integrate it for public use in the future.


There is a Chat GPT API integrated into Slack too. In fact, they were one of the first software applications to do that.

Currently in beta, the ChatGPT app for Slack generates instant conversation summaries, research tools to learn about any related topics, and offers writing assistance.

The tool pulls information from Slack’s channel archives and online data that ChatGPT has been trained on.

Some Slack users enrolled for beta testing are convinced that the tool will help to serve their clients better because of instant and accurate data.


Another Chat GPT API example belongs to Snapchat — they built an AI chatbot called My AI. Essentially, it is a mobile-friendly version of ChatGPT inside a communication platform.

My AI is a customizable chatbot that makes a bunch of recommendations, such as gift ideas, trip planning, recipes, and others. Unlike other companies, Snapchat treats generative AI more like a persona, inviting My AI to be another friend (and not a search engine).


The fact that there is an API for ChatGPT available for organizations has helped Instacart to generate an application where customers ask questions about food.

The application is a combination of ChatGPT and Instacart’s own AI and product data.

Because of that, when customers ask “How to make fish tacos?” or “What is considered healthy food to cook for kids?”, they get detailed and accurate answers.

While much of the community waits for the most recent Chat GPT API to become available for public use, there are companies that have already integrated the GPT-4 model into their products.

How much does ChatGPT API cost?

Today, GPT-4 is available at $0.002 for every 1000 tokens or around 750 words for developers.

Developers need to enroll for a waiting list in order to get GPT-4. So far, they can leverage GPT-3. If you wonder how to get the GPT 3 API key, you need to log into an OpenAI account and obtain it there.

Below is the ChatGPT API pricing comparison.

Most advanced Most powerful Powerful Fast Faster
tokens words GPT-4 model Davinci model Curie model Babbage model Ada model
1,000 750 $0.002 $0.02 $0.002 $0.0005 $0.0004
10,000 7,500 $0.020 $0.20 $0.200 $0.0050 $0.0040
100,000 75,000 $0.200 $2.00 $0.200 $0.0500 $0.0400
1,000,000 750,000 $2.000 $20.00 $2.000 $0.5000 $0.4000
10,000,000 7,500,000 $20.000 $200.00 $20.000 $5.0000 $4.0000

The Chat GPT API pricing comparison shows clearly why developers and businesses are excited about obtaining the GPT-4 model. Compared to GPT 3 API pricing, it is more flexible and affordable for small to mid-sized businesses.

Let Rubyroid Labs Integrate ChatGPT API Into Your Product

In this article, we shared how ChatGPT API can be used in various industries.
While every company has its own unique business needs, all agree that ChatGPT can give them more of what they want — better customer service that results in greater customer retention.

While developers wait for the latest Chat GPT API release date, businesses can leverage the GPT-3 API key to build their projects. There are multiple ChatGPT API tutorials available out there, as well as providers who offer their help in building complex and reliable products.

At Rubyroid Labs, we collaborate with companies all over the world to integrate OpenAI into their projects. Reach out to us if you want to transform your chatbot or other conversational interface.


How expensive is the ChatGPT API?

ChatGPT API is 10x times cheaper than the text-davinci-003 model, OpenAI’s flagship offering in this space.

Do I need to pay for the ChatGPT API?

Yes, the ChatGPT API price is $0.002 for every 1000 tokens, which equals around 750 words.

Is the ChatGPT API free?

No, it is not free. You can find the GPT-3 API pricing at
What is ChatGPT API?

ChatGPT API is a language processing tool used to generate human-like text in a conversational style.

Can I use the ChatGPT API for business?

Yes, absolutely. Developers use the API to create applications for customer service, chatbots, virtual assistants and tools for content creation, document searching, and more.

What can the ChatGPT API do?

With ChatGPT API, applications can generate responses, make recommendations or provide information in a conversational manner.

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Daria Stolyar is a Marketing Manager at Rubyroid Labs. You can follow her at Linkedin.

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