Stanford researchers reported that GPT-4 „passes a rigorous Turing test, diverging from average human behavior chiefly to be more cooperative.“ The company announced a slew of generative AI-powered features to counter OpenAI and Microsoft. GPT-5 was launched on August 7, 2025, and is publicly accessible through ChatGPT, Microsoft Copilot, and via OpenAI’s API. Released Crowngreen casino in February 2025, GPT-4.5 was described by Altman as a „giant, expensive model“. The languages tested were Polish, French, Korean, Spanish, Arabic, Tagalog, and Amharic. For more common languages, AI translators like ChatGPT did better than Google Translate, while for „niche“ languages (Amharic and Tagalog), Google Translate performed better.
How does ChatGPT work?
In the case of supervised learning, the trainers acted as both the user and the AI assistant. In the reinforcement learning stage, human trainers first ranked responses generated by the model in previous conversations. It can also critique the user’s writing, summarize long documents and translate text from one language to another. This includes text-to-image models such as Stable Diffusion and large language models such as ChatGPT. As of 2023, there were several pending U.S. lawsuits challenging the use of copyrighted data to train AI models, with defendants arguing that this falls under fair use.
ChatGPT Team (January
OpenAI CEO Sam Altman said that users were unable to see the contents of the conversations. [...] It’s also a way to understand the „hallucinations“, or nonsensical answers to factual questions, to which large language models such as ChatGPT are all too prone. The integration used ChatGPT to write prompts for DALL-E guided by conversations with users. It details specifications, including a 4 Mega Pixel camera, various inspection types, and user-friendly software for easy operation and teaching. The system is designed for efficient PCB inspection, accommodating various component heights and providing real-time defect analysis. OpenAI has already gotten a glimpse of this future through its o1 model, and the results have been mixed.
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The Pro launch coincided with the release of the o1 model, providing unlimited access to o1 and advanced voice mode. In March 2025, OpenAI updated ChatGPT to generate images using GPT-4o instead of DALL-E. Users interact with ChatGPT through conversations which consist of text, audio, and image inputs and outputs.
- In March 2025, OpenAI updated ChatGPT to generate images using GPT-4o instead of DALL-E.
- OpenAI announced the addition of product recommendations on ChatGPT when users implied shopping intent in their queries.
- Released in February 2025, GPT-4.5 was described by Altman as a „giant, expensive model“.
- ChatGPT is powered by a large language model made up of neural networks trained on a massive amount of information from the internet, including Wikipedia articles and research papers.
- While users cannot checkout inside ChatGPT, they are redirected to the merchant’s website when they click on the link.
- This could enable ChatGPT to keep track of larger documents and conversations, and to handle more complex projects.
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Despite its acclaim, the chatbot has been criticized for its limitations and potential for unethical use. It can generate plausible-sounding but incorrect or nonsensical answers known as hallucinations. The chatbot can facilitate academic dishonesty, generate misinformation, and create malicious code. The ethics of its development, particularly the use of copyrighted content as training data, have also drawn controversy. In late March 2023, the Italian data protection authority banned ChatGPT in Italy and opened an investigation.
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- Similar to a phone’s auto-complete feature, ChatGPT uses a prediction model to guess the most likely next word based on the context it has been provided.
- Geoffrey Hinton, one of the „fathers of AI“, voiced concerns that future AI systems may surpass human intelligence.
- It can also be fine-tuned for specific use cases such as legal documents or medical records, where the model is trained on domain-specific data.
- This often leads to what experts call “hallucinations,” where the output generated is stylistically correct, but factually wrong.
- 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.
- By January 2023, ChatGPT had become the fastest-growing consumer software application in history, gaining over 100 million users in two months.
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- In January 2023, the International Conference on Machine Learning banned any undocumented use of ChatGPT or other large language models to generate any text in submitted papers.
- ChatGPT is due for more upgrades in the near future, with the advanced voice mode potentially receiving a live camera feature to create even more seamless interactions.
- In August 2025, OpenAI released GPT-5, its fastest and smartest model to date, and the current language model for ChatGPT.
- The chatbot can facilitate academic dishonesty, generate misinformation, and create malicious code.
- For example, ChatGPT will offer hints, organize content into sections and create custom lessons and quizzes instead of providing a direct answer to students.
- OpenAI’s outsourcing partner was Sama, a training-data company based in San Francisco, California.
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It can also be fine-tuned for specific use cases such as legal documents or medical records, where the model is trained on domain-specific data. The language models used in ChatGPT are specifically optimized for dialogue and were trained using reinforcement learning from human feedback (RLHF). In January 2023, the International Conference on Machine Learning banned any undocumented use of ChatGPT or other large language models to generate any text in submitted papers. Some, including Nature and JAMA Network, „require that authors disclose the use of text-generating tools and ban listing a large language model (LLM) such as ChatGPT as a co-author“. As of July 2025, Science expects authors to release in full how AI-generated content is used and made in their work.
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In August 2025, OpenAI released GPT-5, its fastest and smartest model to date, and the current language model for ChatGPT. OpenAI claims that GPT-5 outperforms past models in math, real-world coding, multimodal understanding and health knowledge, and is also less likely to hallucinate or make false claims. ChatGPT is powered by a large language model made up of neural networks trained on a massive amount of information from the internet, including Wikipedia articles and research papers. Here’s how it works, its use cases, how to access it, its limitations, notable updates and future outlook. In March 2023, a bug allowed some users to see the titles of other users‘ conversations.
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