GPT-3

Generative Pre-trained Transformer 3 (GPT-3) is a large language model released by OpenAI in 2020. Like its predecessor, GPT-2, it is a decoder-only transformer model of deep neural network, which supersedes recurrence and convolution-based architectures with a technique known as "attention". This attention mechanism allows the model to selectively focus on segments of input text it predicts to be most relevant. It uses a 2048-tokens-long context, float16 (16-bit) precision, and a hitherto-unprecedented 175 billion parameters, requiring 350GB of storage space as each parameter takes 2 bytes of space, and has demonstrated strong "zero-shot" and "few-shot" learning abilities on many tasks.

Generative Pre-trained Transformer 3 (GPT-3)
Original author(s)	OpenAI
Initial release	June 11, 2020 (beta)
Repository	github.com/openai/gpt-3
Predecessor	GPT-2
Successor	GPT-3.5 GPT-4
Type	Large language model Generative pre-trained transformer Foundation model
Website	openai.com/blog/openai-api

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On September 22, 2020, Microsoft announced that it had licensed GPT-3 exclusively. Others can still receive output from its public API, but only Microsoft has access to the underlying model.

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