The short answer is . OpenAI's GPT-3 is a proprietary model. Unlike its predecessor, GPT-2, which was released for public download, the full weights and architecture for GPT-3 are not available for download by the general public.
In September 2020, Microsoft announced it had exclusively licensed GPT-3, meaning only they have access to the underlying model and source code. Everyone else interacts with it through an rather than by running it on their own hardware. 2. How to Access GPT-3 (The Official Way)
This is a web-based tool for testing different GPT-3 models (like davinci-002 or babbage-002 ) without writing code. 3. Downloadable Alternatives (Open-Source "GPT-3")