GPT-4

Generative Pre-trained Transformer 4 (GPT-4)
Generative Pre-trained Transformer 4 (GPT-4)
Developer(s)	OpenAI
Initial release	March 14, 2023
Preview release	gpt-4-turbo-2024-04-09 / April 9, 2024
Predecessor	GPT-3.5
Successor	GPT-4o
Type	Multimodal; Large language model; Generative pre-trained transformer; Foundation model;
License	Proprietary
Website	openai.com/gpt-4

Generative Pre-trained Transformer 4 (GPT-4) is a multimodal large language model trained and created by OpenAI and the fourth in its series of GPT foundation models.^[1] It was launched on March 14, 2023,^[1] and made publicly available via the paid chatbot product ChatGPT Plus until being replaced in 2025, via OpenAI's API, and via the free chatbot Microsoft Copilot.^[2]

GPT-4 is more capable than its predecessor GPT-3.5.^[3] GPT-4 Vision (GPT-4V)^[4] is a version of GPT-4 that can process images in addition to text.^[5] OpenAI has not revealed technical details and statistics about GPT-4, such as the precise size of the model.^[6]

As a transformer-based model, GPT-4 uses a paradigm where pre-training using both public data and "data licensed from third-party providers" is used to predict the next token. After this step, the model was then fine-tuned with reinforcement learning feedback from humans and AI for human alignment and policy compliance.^[7]^: 2

^ ^a ^b Edwards, Benj (March 14, 2023). "OpenAI's GPT-4 exhibits "human-level performance" on professional benchmarks". Ars Technica. Archived from the original on March 14, 2023. Retrieved March 15, 2023.
^ Wiggers, Kyle (July 6, 2023). "OpenAI makes GPT-4 generally available". TechCrunch. Archived from the original on August 16, 2023. Retrieved August 16, 2023.
^ Cite error: The named reference vox was invoked but never defined (see the help page).
^ "GPT-4V(ision) system card". OpenAI. Retrieved February 5, 2024.
^ Roose, Kevin (September 28, 2023). "The New ChatGPT Can 'See' and 'Talk.' Here's What It's Like". The New York Times. Archived from the original on October 31, 2023. Retrieved October 30, 2023.
^ Cite error: The named reference verge wrong was invoked but never defined (see the help page).
^ Cite error: The named reference gpt4_tech_report was invoked but never defined (see the help page).

[ars-technica-1] Edwards, Benj (March 14, 2023). "OpenAI's GPT-4 exhibits "human-level performance" on professional benchmarks". Ars Technica. Archived from the original on March 14, 2023. Retrieved March 15, 2023.

[2] Wiggers, Kyle (July 6, 2023). "OpenAI makes GPT-4 generally available". TechCrunch. Archived from the original on August 16, 2023. Retrieved August 16, 2023.

[vox-3] Cite error: The named reference vox was invoked but never defined (see the help page).

[4] "GPT-4V(ision) system card". OpenAI. Retrieved February 5, 2024.

[5] Roose, Kevin (September 28, 2023). "The New ChatGPT Can 'See' and 'Talk.' Here's What It's Like". The New York Times. Archived from the original on October 31, 2023. Retrieved October 30, 2023.

[verge_wrong-6] Cite error: The named reference verge wrong was invoked but never defined (see the help page).

[gpt4_tech_report-7] Cite error: The named reference gpt4_tech_report was invoked but never defined (see the help page).

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