Access to GPT-4o mini. Standard voice mode. Limited access to GPT-4o. Limited access to file uploads, advanced data analysis, web browsing, and image generation. Use custom GPTs. Have an existing plan? See billing help ⁠ (opens in a new window)

GPT-4-assisted safety research GPT-4’s advanced reasoning and instruction-following capabilities expedited our safety work. We used GPT-4 to help create training data for model fine-tuning and iterate on classifiers across training, evaluations, and monitoring.

ChatGPT helps you get answers, find inspiration and be more productive. It is free to use and easy to try. Just ask and ChatGPT can help with writing, learning, brainstorming and more.

2023年3月14日 · We’ve created GPT-4, the latest milestone in OpenAI’s effort in scaling up deep learning. GPT-4 is a large multimodal model (accepting image and text inputs, emitting text outputs) that, while less capable than humans in many real-world scenarios, exhibits human-level performance on various professional and academic benchmarks.

2025年1月28日 · Powered by a fine-tuned version of OpenAI’s GPT-4o model, ChatGPT Search serves up information and photos from the web along with links to relevant sources, at which point you can ask follow-up...

Second, we give a high-level overview of the safety processes OpenAI adopted to prepare GPT-4 for deployment. This spans our work across measurements, model-level changes, product- and system-level interventions (such as monitoring and policies), and external expert engagement.

ChatGPT is fine-tuned from GPT-3.5, a language model trained to produce text. ChatGPT was optimized for dialogue by using Reinforcement Learning with Human Feedback (RLHF) – a method that uses human demonstrations and preference comparisons to guide the model toward desired behavior.

When you start a conversation with ChatGPT, you’re interacting with a powerful generative AI model provided by OpenAI. Customers on a paid plan can choose between several foundational models. Learn more about foundational models.

There are a few main things to consider (not an exhaustive list) when choosing which GPT-4 model to use: Context window (some models have as low as an 8k context window while some have an 128k context window)

Generative Pre-trained Transformer 3 (GPT-3) is a large language model released by OpenAI in 2020.. Like its predecessor, GPT-2, it is a decoder-only [2] transformer model of deep neural network, which supersedes recurrence and convolution-based architectures with a technique known as "attention". [3] This attention mechanism allows the model to focus selectively on …