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  1. GPT-4 | OpenAI

    Mar 14, 2023 · GPT-4 is capable of handling over 25,000 words of text, allowing for use cases like long form content creation, extended conversations, and document search and analysis.

  2. OpenAI

    GPT-5 OpenAI o3 OpenAI o4-mini GPT-4o GPT-4o mini Sora Safety Safety Approach Security & Privacy Trust & Transparency ChatGPT Explore ChatGPT Business Enterprise Education Pricing …

  3. GPT-4 - OpenAI

    Mar 14, 2023 · On nine categories of internal adversarially-designed factual evals, we compare GPT-4 (green) to the first three ChatGPT versions. There are significant gains across all topics.

  4. Hello GPT-4o - OpenAI

    May 13, 2024 · We'll roll out a new version of Voice Mode with GPT‑4o in alpha within ChatGPT Plus in the coming weeks. Developers can also now access GPT‑4o in the API as a text and vision model.

  5. Introducing GPT-4o and more tools to ChatGPT free users

    May 13, 2024 · You can now have voice conversations with ChatGPT directly from your computer, starting with Voice Mode that has been available in ChatGPT at launch, with GPT‑4o’s new audio …

  6. 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.

  7. Introducing ChatGPT - OpenAI

    Nov 30, 2022 · 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, …

  8. ChatGPT Capabilities Overview - OpenAI Help Center

    Speak naturally with ChatGPT using the mobile app or supported desktop/web platforms. You can have a hands-free conversation, choose your preferred voice, and receive spoken responses.

  9. 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.

  10. Introducing ChatGPT search - OpenAI

    Oct 31, 2024 · ChatGPT search connects people with original, high-quality content from the web and makes it part of their conversation. By integrating search with a chat interface, users can engage with …