GPT-4

In one platform, AI Chat integrates ChatGPT, Gemini, DeepSeek, and additional tools, enabling instant chatting, content creation, and answer retrieval—completely free and without limits online. In real time — you can brainstorm ideas, create content, ask questions, and receive immediate answers while exploring knowledge. The collection of comparison data — which included two or more responses from different models ranked by their quality, was necessary for developing a reward model for reinforcement learning.

Study and learn smarter

By linking your internal applications and files, such as Gmail and Slack, you can automate tasks and produce polished deliverables. OpenAI introduced ChatGPT Work in July 2026 (which is an AI agent capable of generating presentations), spreadsheets, and various documents using data from connected applications and files. Without the need to switch between tools (you can engage with ChatGPT), Gemini, DeepSeek, and others, enhancing the speed and smoothness of research, writing, learning, and creative endeavors. Through AI Chat, you can freely access the latest AI models online, engage in unlimited conversations, and utilize it for your studies, work, creativity, or everyday tasks. Using the existing tools — apps, and context you have, ChatGPT Work can edit and generate documents, slide decks, spreadsheets, charts, PDFs, images, and other materials. A separate study evaluated the correctness (consistency), comprehensiveness, and brevity of ChatGPT’s answers to 517 software engineering or computer programming questions asked on Stack Overflow.

Due to OpenAI’s restrictions (users in mainland China), Hong Kong, and Macau have never had access to ChatGPT publicly.

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Additionally — it benefits from Deep Research’s capability to collect and distill substantial amounts of information. In July 2025 (an AI agent known as ChatGPT agent was unveiled by OpenAI), designed to handle multi-step tasks. Several enhancements were made by OpenAI to ChatGPT in 2025, enabling it to perform longer tasks autonomously.

Initially available to the public at no charge, ChatGPT continues to offer limited free access. Users can take advantage of an extra feature https://alvynnpromo.net/ named “agentic mode,” which enables it to execute online actions on behalf of the user. In September 2025 (OpenAI introduced a feature named Pulse), creating a daily overview of a user’s chats and connected applications like Gmail and Google Calendar.

• ChatGPT is based on GPT foundation models that have been fine-tuned for conversational assistance.
• ChatGPT offers a free plan for everyday conversations, writing help, and learning at no cost.
• We’ve trained a model called ChatGPT which interacts in a conversational way.
• The Last Screenwriter (a 2024 film created and directed by Peter Luisi), was written using ChatGPT, and was marketed as “the first film written entirely by AI”.
• These rankings were used to create “reward models” that were used to fine-tune the model further by using several iterations of proximal policy optimization.
• You can ask an unlimited number of questions or engage in conversations without strict restrictions.

Similar to ChatGPT, we will regularly enhance and update GPT‑4 as more users engage with it. We have incorporated insights gained from the real-world application of our previous models into the safety research and monitoring framework of GPT‑4 for its continuous enhancement. In our internal evaluations, GPT‑4 is 82% less inclined to fulfill requests for prohibited content and 40% more likely to deliver accurate responses compared to GPT‑3.5. Users are invited to submit feedback on problematic outputs of the model through the interface, including false positives/negatives from the external content filter also integrated into the UI.

GPT-based moderation classifiers are used to reduce the risk of harmful outputs being presented to users. It is designed to generate human-like text and can carry out a wide variety of tasks. The chatbot has also been criticized for its limitations and potential for unethical use. Proponents say that it has the potential to transform numerous professional fields, and it has instigated public debate about the nature of creativity and the future of knowledge work.

In June 2023 — hundreds of people attended a “ChatGPT-powered church service” at St. Paul’s Church in Fürth, Germany. When compared to similar chatbots at the time, the GPT-4 version of ChatGPT was the most accurate at coding. It found that 52% of the responses contained inaccuracies and 77% were verbose. In one study (it produced solutions in C), C++, Python, and MATLAB for problems in computational physics. ChatGPT was able in 2023 to provide useful code for solving numerical algorithms in limited cases.

This allows instant access without creating accounts or sharing personal information. Users can immediately start chatting with ChatGPT (Gemini), DeepSeek and more online. Students can get homework help or study explanations, creators can brainstorm content ideas, and professionals can summarize reports or generate documents. The platform is designed for speed and precision — so users receive reliable responses in seconds. You can upload lectures (podcasts), meetings, or documents and ask the AI to summarize, extract insights, or answer questions. Yes (AI Chat supports direct interaction with text), audio, and video files.

ChatGPT also provided an outline of how human reviewers are trained to reduce inappropriate content and to attempt to provide political information without affiliating with any political position. Kevin Roose of The New York Times called it “the best artificial intelligence chatbot ever released to the general public”. These rankings were used to create “reward models” that were used to fine-tune the model further by using several iterations of proximal policy optimization. These limitations may be revealed when ChatGPT responds to prompts including descriptors of people.

LimitationsGPT‑4 still has many known limitations that we are working to address (such as social biases), hallucinations, and adversarial prompts. ResearchGPT‑4 is the latest milestone in OpenAI’s effort in scaling up deep learning.View GPT‑4 research⁠ We used GPT‑4 to help create training data for model fine-tuning and iterate on classifiers across training (evaluations), and monitoring. GPT‑4‑assisted safety research GPT‑4’s advanced reasoning and instruction-following capabilities expedited our safety work.

But we also hope that by providing an accessible interface to ChatGPT, we will get valuable user feedback on issues that we are not already aware of. Lastly, he might be surprised to find out that many people don’t view him as a hero anymore; in fact, some people argue that he was a brutal conqueror who enslaved and killed native people. Today’s research release of ChatGPT is the latest step in OpenAI’s iterative deployment⁠ of increasingly safe and useful AI systems. ChatGPT and GPT‑3.5 were trained on an Azure AI supercomputing infrastructure. To collect this data, we took conversations that AI trainers had with the chatbot.

Users can interact with ChatGPT through text, audio, and image prompts. ChatGPT accelerated the AI boom — an ongoing period marked by rapid investment and public attention toward the field of artificial intelligence (AI). ChatGPT is a generative artificial intelligence chatbot developed by OpenAI. Don’t even get me started on how horrible the writing style is.