A guide to evaluating a billing system, part 2
Kshitij GroverOpenAI powers AI development for millions of users worldwide. The platform manages complex infrastructure usage behind the scenes, including compute cycles, API calls, token processing, and model completions.
The platform uses flexible billing to monetize that usage. This guide breaks down how OpenAI structures its pricing, why usage-based models are taking over, and how Orb helps power modern billing systems.
Note: For the most up-to-date pricing, check OpenAI's official pricing page. Plan details may change over time.
OpenAI's pricing models and subscription plans include several main options: Free, Plus, Pro, Business, and Enterprise. These options cover a wide range of users, from individual developers to large organizations. This guide compares all OpenAI subscription plans.
The OpenAI free plan is for beginners and individuals who want to explore AI without paying. With the Free plan, you can:
The Free plan allows you to learn about AI, build simple projects, and experience ChatGPT's interface and capabilities.
If you’re comparing ChatGPT pricing plans, Plus is the $20/month option for power users. ChatGPT Plus is for individual users who need more power and features. With ChatGPT Plus, you can:
ChatGPT Plus provides the tools and resources needed for more demanding projects and professional use.
ChatGPT Pro is for researchers, engineers, and professionals with intensive AI needs. The OpenAI price for this tier is $200 per month. With ChatGPT Pro, you get:
ChatGPT Pro provides research-grade intelligence for professionals who need the most powerful AI capabilities available.
ChatGPT Business is designed for businesses and teams. Business plans are available starting at 2 users. (Note: Previously known as OpenAI Teams pricing, this has been rebranded as ChatGPT Business.). With ChatGPT Business, your team can:
ChatGPT Business makes it easy for organizations to adopt ChatGPT subscription plans as their primary AI platform, with enterprise-level security while maintaining flexibility for smaller teams.
ChatGPT Enterprise has no published seat minimum. Contact sales for custom pricing.
The Enterprise plan includes:
Developers can integrate OpenAI's models into their applications through APIs, with costs based on usage. API pricing is billed per token, where tokens are mathematical representations of natural language. The OpenAI pricing for these models varies by capability and usage volume. Current API pricing includes:
Note: Tokens are billed at the chosen language model's input and output rates. Approximately 1,000 tokens equals about 750 words. API usage is billed separately from ChatGPT subscriptions.
OpenAI offers special pricing for qualifying organizations:
This flexible approach to OpenAI pricing allows individuals and teams to tailor their plans to their specific needs and budgets. You can start with a basic plan and upgrade as needed, ensuring you only pay for what you use.
Note: Want to learn about pricing AI agents? Check out this free eBook on the topic. There's also a how-to guide on implementing AI agent pricing with Orb. For more insights on bridging pricing gaps in AI products, read Bridging the Pricing Gap.
Remember: Pricing, plans, and features are subject to change. For the most up-to-date information, always refer to OpenAI's official pricing page. Users can pick the OpenAI pricing plan that fits their needs at the moment of purchasing it and upgrade only when usage grows.
OpenAI's pricing model combines free access with premium tiers and usage-based components. The structure includes several distinct components:
Note: To understand how AI-powered SaaS companies approach pricing strategies, read this AI SaaS pricing guide. Discover practical examples of building AI pricing models in this guide: OpenAI Credits Model in 100 Lines of Code.
For companies building AI platforms and developer tools, flat-rate subscription billing often isn't sufficient. OpenAI, for example, offers products with variable infrastructure costs, including API calls, token processing, and model completions.
These create cost structures that align perfectly with usage-based pricing models. Here's why usage-based billing makes sense for OpenAI:
OpenAI now uses a hybrid pricing model combining predictable subscriptions with usage-based components. This lets them evolve their product quickly, support new AI workflows, and maintain transparent billing for both customers and internal teams.
Note: Learn more about how to approach your AI pricing strategy with insights from industry leaders.
GenAI platforms, developer tools, infrastructure companies, and many SaaS businesses are moving away from traditional subscription billing. According to the 2025 State of AI Agent Pricing, usage-based models are becoming the default because they allow companies to:
Companies need more than bolt-on billing logic. They need infrastructure purpose-built for usage-based monetization.
Note: For insights on prepaid credits in AI pricing, check out An AI Founder's Guide to Prepaid Credits.
Orb is a done-for-you billing platform that empowers businesses like Perplexity and Vercel to build sophisticated pricing models. We handle the complexities of usage-based pricing, giving you the tools to build a model that grows with your business.
Orb can help you implement any type of flexible pricing strategy you need:
Ready to unlock the full potential of your pricing? Discover how Orb can help build a pricing engine that covers your specific needs. Explore our flexible pricing options to find the perfect plan for your needs and get started.
See how AI companies are building modern usage-based billing