What is ChatGPT, and how is it different from a search engine?
ChatGPT is a free chatbot that OpenAI opened to the public on November 30, 2022, built on a GPT-3.5 language model tuned for conversation.
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Pick the path that fits you and read the answers in order. Each one takes a few minutes and ends with something to try.
New to AI? Learn what ChatGPT and other assistants are, how to ask well and how to check the answers.
ChatGPT is a free chatbot that OpenAI opened to the public on November 30, 2022, built on a GPT-3.5 language model tuned for conversation.
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A prompt is whatever you type to an AI model such as ChatGPT: a question, an instruction, a piece of text to work on, or all three.
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Opening a prompt with a role, such as "You are an experienced bookkeeper for small businesses", tells ChatGPT which kind of expertise, vocabulary and point of view to draw on.
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Include enough context that a capable stranger could do the job well without asking you a follow-up question: who the answer is for, the situation, the goal, the format and any limits.
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ChatGPT writes the most plausible-sounding reply to your prompt, not a checked fact, so it sometimes invents names, numbers, quotes and sources with complete confidence.
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GPT-4o is OpenAI's new flagship model, announced on May 13, 2024, where the "o" stands for "omni": one model that handles text, audio, images and video instead of chaining separate systems.
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Use AI on real tasks: refine prompts, build custom assistants, understand what changes in your job.
A new paper from OpenAI and University of Pennsylvania researchers estimates that about 80% of U.S.
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The simple, improved, refined method is a way to build a prompt in three passes: start with the bare request, improve it by naming the audience, topic and channel, then refine it by adding the steps,…
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GPT-4 is OpenAI's newest large language model, announced on March 14, 2023; it accepts text and images as input and writes text.
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GPTs are custom versions of ChatGPT that you set up for one purpose by giving them instructions, extra knowledge files and chosen skills such as web browsing, image creation or data analysis.
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Prompt a reasoning model like you would brief a capable new colleague: give it all the context up front, state exactly what result you want and how you'll judge it, and leave the method to the model.
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GPT-5 is OpenAI's new flagship AI system, released yesterday to every ChatGPT user, including the free tier.
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APIs, coding agents, MCP and personal agents: from the first API call to automation.
The OpenAI API is a new web service, announced on June 11, 2020, that lets software send text to OpenAI's GPT-3 family of models and get a continuation back.
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OpenAI Codex is a descendant of GPT-3 trained on natural language and billions of lines of public code, and since August 10, 2021 an improved version is available in private beta through the OpenAI API.
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The Model Context Protocol (MCP) is an open standard, released by Anthropic yesterday, that defines one common way for AI assistants to connect to outside data and tools.
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A coding agent is an AI system that doesn't just suggest code but carries out a programming task itself: it reads your project, edits files, runs commands and tests, and repeats until the job is done or it…
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OpenClaw and Hermes Agent are free, open-source personal AI agents that you install yourself and talk to through apps like WhatsApp or Telegram; they can run commands, manage files and carry out tasks on your…
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GPT-6 Astra is OpenAI's new flagship model, announced yesterday, which the company calls state of the art in computer use, software engineering, science and professional work.
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