ChatGPT's free tier—offering GPT-3.5 access at no cost—functions as the primary top-of-funnel acquisition channel. With hundreds of millions of monthly active users encountering the product before any sales conversation, conversion to paid tiers occurs with minimal marketing spend.
The GPT API, combined with extensive documentation, the OpenAI Cookbook, developer forums, and a generous free-tier credit for new accounts, has built one of the most engaged developer ecosystems in enterprise software. Developers who build on GPT become advocates and distribution channels.
OpenAI leverages Microsoft's global enterprise sales infrastructure to reach Fortune 500 accounts through Azure OpenAI Service. Dedicated enterprise sales teams handle ChatGPT Enterprise deals, offering custom pricing, SLA guarantees, and compliance certifications.