GPT-5 was launched on August 7, 2025, and is publicly accessible through ChatGPT, Microsoft Copilot, and via OpenAI’s API. According to OpenAI, it was intended to reduce hallucinations and enhance pattern recognition, creativity, and user interaction. Released in February 2025, GPT-4.5 was described by Altman as a “giant, expensive model”.

Context window

• Kelsey Piper of Vox wrote that “ChatGPT is the general public’s first hands-on introduction to how powerful modern AI has gotten” and that ChatGPT is “smart enough to be useful despite its flaws”.
• Italian regulators assert that ChatGPT was exposing minors to age-inappropriate content, and that OpenAI’s use of ChatGPT conversations as training data could violate Europe’s General Data Protection Regulation.
• An optional “Memory” feature allows users to tell ChatGPT to memorize specific information.
• The uses and potential of ChatGPT in health care has been the topic of scientific publications and experts have shared many opinions.
• However, no machine translation services match human expert performance.
• ChatGPT was initially free to the public and remains free in a limited capacity.
• ChatGPT has never been publicly available in China because OpenAI prevented Chinese users from accessing their site.

In September 2025, OpenAI added a feature called Pulse, which generates a daily analysis of a user’s chats and connected apps such as Gmail and Google Calendar. In December 2024, OpenAI launched a new feature allowing users to call ChatGPT with a telephone for up to 15 minutes per month for free. An optional “Memory” feature allows users to tell ChatGPT to memorize specific information. ChatGPT’s training data includes software manual pages, information about internet phenomena such as bulletin board systems, multiple programming languages, and the text of Wikipedia.

Data safety

According to TechCrunch, it is a service based on o3 that combines advanced reasoning and web search capabilities to make comprehensive reports within 5 to 30 minutes. ChatGPT’s Mandarin Chinese abilities were lauded, but the ability of the AI to produce content in Mandarin Chinese in a Taiwanese accent was found to be “less than ideal” due to differences between mainland Mandarin Chinese and Taiwanese Mandarin. However, no machine translation services match human expert performance.
This includes text-to-image models such as Stable Diffusion and large language models such as ChatGPT. In August 2024, the FTC voted unanimously to ban marketers from using fake user reviews created by generative AI chatbots (including ChatGPT) and influencers paying for bots to increase follower counts. ChatGPT has never been publicly available in China because OpenAI prevented Chinese users from accessing their site. Kevin Roose of The New York Times called it “the best artificial intelligence chatbot ever released to the general public”.
ChatGPT is a generative artificial intelligence chatbot developed by OpenAI. TechRadar is part of Future US Inc, an international media group and leading digital publisher. Now, he’s continuing to tell the stories people want and need to hear about the rapidly evolving AI space and its impact on their lives.

ChatGPT Health

At launch, the feature was limited to purchases on Etsy from US users with a payment method linked to their OpenAI account. The user can interrupt tasks or provide additional instructions as needed. In July 2025, https://www.luckytwicecasino.eu/ OpenAI released ChatGPT agent, an AI agent that can perform multi-step tasks. It was capable of autonomously performing tasks through web browser interactions, including filling forms, placing online orders, scheduling appointments, and other browser-based tasks. The integration used ChatGPT to write prompts for DALL-E guided by conversations with users. At launch, OpenAI included more than 3 million GPTs created by GPT Builder users in the GPT Store.

Copyright

In The Atlantic magazine’s “Breakthroughs of the Year” for 2022, Derek Thompson included ChatGPT as part of “the generative-AI eruption” that “may change our mind about how we work, how we think, and what human creativity is”. Samantha Lock of The Guardian noted that it was able to generate “impressively detailed” and “human-like” text. GPT-4o’s ability to generate images was released later, in March 2025, when it replaced DALL-E 3 in ChatGPT. GPT-4o (“o” for “omni”) is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024. As of 2026update, if the user turns off data sharing for privacy, all previous transcripts and projects are permanently deleted without warning.

• The term “hallucination” as applied to LLMs is distinct from its meaning in psychology, and the phenomenon in chatbots is more similar to confabulation or bullshitting.
• Popular deep learning models are trained on mass amounts of media scraped from the Internet, often utilizing copyrighted material.
• All models were 18 years of age or older at the time of depiction.
• In March 2023, a bug allowed some users to see the titles of other users’ conversations.
• In July 2025, OpenAI released ChatGPT agent, an AI agent that can perform multi-step tasks.

GPT-4.5

Their leaders emphasized their earlier caution regarding public deployment was due to the trust the public places in Google Search. Kelsey Piper of Vox wrote that “ChatGPT is the general public’s first hands-on introduction to how powerful modern AI has gotten” and that ChatGPT is “smart enough to be useful despite its flaws”. As before, OpenAI has not disclosed technical details such as the exact number of parameters or the composition of its training dataset.

Let ChatGPT Handle Your Online Busywork

In November 2023, OpenAI released GPT Builder a tool for users to customize ChatGPT’s behavior for a specific use case. GPT-based moderation classifiers are used to reduce the risk of harmful outputs being presented to users. ChatGPT is frequently used for translation and summarization tasks, and can simulate interactive environments such as a Linux terminal, a multi-user chat room, or simple text-based games such as tic-tac-toe. It is designed to generate human-like text and can carry out a wide variety of tasks.
All models were 18 years of age or older at the time of depiction. In an American civil lawsuit, attorneys were sanctioned for filing a legal motion generated by ChatGPT containing fictitious legal decisions. This has led to concern over the rise of AI slop whereby “meaningless content and writing thereby becomes part of our culture, particularly on social media, which we nonetheless try to understand or fit into our existing cultural horizon.” Between March and April 2023, Il Foglio published one ChatGPT-generated article a day on its website, hosting a special contest for its readers in the process. When compared to similar chatbots at the time, the GPT-4 version of ChatGPT was the most accurate at coding.
A May 2023 statement by hundreds of AI scientists, AI industry leaders, and other public figures demanded that “mitigating the risk of extinction from AI should be a global priority”. Geoffrey Hinton, one of the “fathers of AI”, voiced concerns that future AI systems may surpass human intelligence. In July 2023, the US Federal Trade Commission (FTC) issued a civil investigative demand to OpenAI to investigate whether the company’s data security and privacy practices to develop ChatGPT were unfair or harmed consumers. In October 2025, OpenAI banned accounts suspected to be linked to the Chinese government for violating the company’s national security policy. In late March 2023, the Italian data protection authority banned ChatGPT in Italy and opened an investigation.
In the UK, a judge expressed concern about self-representing litigants wasting time by submitting documents containing significant hallucinations. In November 2025, OpenAI acknowledged that there have been “instances where our 4o model fell short in recognizing signs of delusion or emotional dependency”, and reported that it is working to improve safety. In medical education, it can explain concepts, generate case scenarios, and be used by students preparing for licensing examinations. ChatGPT shows inconsistent responses, lack of specificity, lack of control over patient data, and a limited ability to take additional context (such as regional variations) into consideration.