PRODUCT

ChatGPT

ChatGPT is a conversational AI product launched by OpenAI in November 2022. It brought large language models to a mainstream audience for the first time.

Launched: November 30, 2022
Maker: OpenAI

PRODUCTChatGPT

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Key facts

What we know

Launched: November 30, 2022
Maker: OpenAI

Forest Trails

Connections in the forest

Made by
OpenAI(Company)
Uses
Large Language Model(Technology)Transformer(Technology)GPT-5(Product)
Competitor
Claude(Product)Gemini(Product)

Referencing articles

6 articles

Technology6 minUpdated Jun 17, 2025

GPT-5, what changed

GPT-5 is the model that closed most of the visible gaps in GPT-4 — reasoning stability, long context, and multimodal understanding.

Technology9 minUpdated May 20, 2025

The rise of large language models

An LLM is a Transformer trained on a lot of text. The interesting behaviour appears only above a certain scale.

Technology7 minUpdated May 6, 2025

Claude and Constitutional AI

Constitutional AI replaces some human feedback with model-generated feedback grounded in an explicit list of principles.

Technology6 minUpdated Apr 22, 2025

Reinforcement learning, briefly

Reinforcement learning treats behaviour as a policy to be improved through trial, error, and reward.

Companies8 minUpdated Mar 28, 2025

Inside OpenAI

OpenAI began in 2015 as a nonprofit, added a capped-profit arm to fund compute, and became a household name almost overnight in 2022.

Technology8 minUpdated Jan 30, 2025

How ChatGPT works

ChatGPT is a large language model plus a chat interface plus a training procedure that teaches the model to be helpful.

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