AI Parabellum OpenAI Pricing Calculator

Say you are planning a chatbot or a batch of document embeddings and need to know what the OpenAI bill will look like before you write any code.

The AI Parabellum OpenAI Pricing Calculator is a free API cost estimator that works that out for you.

It covers 2025 pricing for GPT-4, GPT-3.5, embeddings and other OpenAI API services, so you can compare models and see which one fits a budget.

The calculator is useful for developers, small teams and founders who need a number to put in a project plan or show a client.

Picking a cheaper model for a high-volume job is the kind of decision it helps you make early, before usage grows.

The tool costs nothing to use.

AI Parabellum, the site behind the calculator, also runs a wider directory of AI tools, with sections for AI news, prompt generators and content detectors.

The calculator is the practical piece for anyone who just wants a cost estimate.

Keep in mind that it is an estimating aid, so check your actual usage against OpenAI's own billing once a project is live.