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  1. Introducing ChatGPT - OpenAI

    Nov 30, 2022 · We performed several iterations of this process. ChatGPT is fine-tuned from a model in the GPT‑3.5 series, which finished training in early 2022. You can learn more about the 3.5 series …

  2. OpenAI

    Message ChatGPT Learn about ChatGPT BusinessSearch with ChatGPTTalk with ChatGPTResearch More Introducing the Codex app Product7 min read Introducing the Codex app Product7 min read …

  3. Presentamos ChatGPT | OpenAI

    Optimizamos ChatGPT a partir de un modelo de la serie GPT‑3.5, cuyo entrenamiento terminó a principios de 2022. Encontrarás más información sobre la serie 3.5 aquí ⁠.

  4. GPT-4 | OpenAI

    Mar 14, 2023 · Continuous improvement from real-world use We’ve applied lessons from real-world use of our previous models into GPT‑4’s safety research and monitoring system. Like ChatGPT, we’ll be …

  5. Presentamos ChatGPT - OpenAI

    Optimizamos ChatGPT a partir de un modelo de la serie GPT‑3.5, cuyo entrenamiento terminó a principios de 2022. Encontrarás más información sobre la serie 3.5 aquí ⁠.

  6. Empieza a utilizar ChatGPT al instante | OpenAI

    Feb 15, 2024 · Crear una cuenta tiene muchos beneficios, como la posibilidad de guardar y revisar el historial de chats, compartir chats y desbloquear funciones adicionales como conversaciones de voz …

  7. GPT‑5 is here - OpenAI

    GPT‑5 produces higher-quality responses by using your company’s files and connected apps like Google Drive, SharePoint, and more, while respecting existing permissions.

  8. ChatGPT — Release Notes - OpenAI Help Center

    Feb 13, 2026 · Previously, some questions were automatically routed to the Thinking model when ChatGPT determined it might help. To maximize choice, free users will now use GPT-5.2 Instant by …

  9. Introducing GPT‑4.5 - OpenAI

    Feb 27, 2025 · We’re releasing a research preview of GPT‑4.5—our largest and best model for chat yet. GPT‑4.5 is a step forward in scaling up pre-training and post-training.

  10. Introducing ChatGPT Plus - OpenAI

    Feb 1, 2023 · We’re launching a pilot subscription plan for ChatGPT, a conversational AI that can chat with you, answer follow-up questions, and challenge incorrect assumptions.