We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.

September 12, 2025 - Le chat fonctionne via l’API officielle d’OpenAI, mais il ne s’agit pas de l’interface de chat officielle. Bonjour humain, je suis un chatbot IA, modèle GPT-4.1 nano. Traite ... ... Tu trouveras ici des réponses aux questions les plus fréquentes sur ChatGPT. Des bases comme « Qu’est-ce que ChatGPT ? » jusqu’aux sujets tels que les coûts, la protection des données et l’intégration. Cette FAQ t’aide à mieux comprendre l’IA et à en tirer le meilleur parti.

The new ChatGPT Images is here · Product7 min read · Introducing GPT-5.2-Codex · Product5 min read · Introducing GPT-5.2 · Product12 min read · The state of enterprise AI · Company7 min read · View all · Deepening our collaboration with the U.S. Department of Energy ·

· Instant answers—Get recipe suggestions when you only have a few ingredients. Join hundreds of millions of users and try the app captivating the world. Download ChatGPT today. Terms of service & privacy policy: https://openai.com/policies/terms-of-use https://openai.com/policies/privacy-policy

ChatGPT is the free AI chatbot for everyone. Ask anything, learn, and explore new ideas with the world’s most advanced AI chat.

ChatGPT is your AI chatbot for everyday use. Chat with the most advanced AI to explore ideas, solve problems, and learn faster.

Access to ChatGPT is now open! Use the OpenAI neural network for free and without registration. ChatGPT is a chatbot with artificial intelligence.

Starting today, you can use ChatGPT instantly, without needing to sign-up.

November 22, 2024 - Don’t wait any longer, try out today Nation AI, our GPT chatbot ! You’ll be able to chat for free with a French online chatbot, with no need to register or create an account. Nation AI lets you start interacting with OpenAI’s AI models, ...

October 9, 2025 - Powered by the advanced model GPT-5 Nano via the official OpenAI API, the service remains 100% free and always at your fingertips. ... Tailor your conversations to your needs: study, work, or leisure. ChatGPT Online provides relevant and natural ...

August 11, 2025 - OpenAI presented GPT-5.1 As a direct evolution of GPT-5, it incorporates a series of improvements designed to make the ChatGPT experience even faster, more accurate, and more natural. Launching in 2025, GPT-5.1 significantly improves upon the previous model, for both free and paid users. The model is distinguished by better contextual understanding, increased typing fluency, and an enhanced ability to handle long, complex, or specialized tasks.

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

Explore the evolution of our models in ChatGPTLearn more(opens in a new window) ... GPT‑5 produces high-quality code, generates front-end UI with minimal prompting, and shows improvements to personality, steerability, and executing long chains of tool calls.

ChatGPT is your AI chatbot for everyday use. Chat with the most advanced AI to explore ideas, solve problems, and learn faster.

Starting today, ChatGPT Pro users will be able to select GPT‑4.5 in the model picker on web, mobile, and desktop. We will begin rolling out to Plus and Team users next week, then to Enterprise and Edu users the following week.

more than 50 languages⁠(opens in a new window) across sign-up and login, user settings, and more. We are beginning to roll out GPT‑4o to ChatGPT Plus and Team users, with availability for Enterprise users coming soon. We are also starting to roll out to ChatGPT Free with usage limits today.

Chat with GPT online and for free. Chat GPT-5 is a language model developed by Open AI, designed to respond to text-based queries and generate natural language responses.