ChatGPT

Overview

ChatGPT launched in November 2022 and became the fastest consumer product in history to reach 100 million users. By mid-2025 it had over 700 million weekly active users spanning every skill level and profession. What started as a text chatbot has since grown into a multimodal platform covering writing, coding, data analysis, image generation, voice conversation, web search, and agentic task execution. The current default model is GPT-5, which handles reasoning, analysis, and generation across text, images, files, and audio. The free tier now includes web search, image generation, and voice mode — features that previously required a paid subscription. Plus adds priority access and higher usage limits; Pro at $200/month provides unlimited reasoning-mode access for researchers and engineers who need maximum throughput. ChatGPT's reach extends well beyond individual productivity. OpenAI reports that over 5% of all ChatGPT messages globally are healthcare-related, and the platform averages 580,000+ weekly health messages from rural hospital deserts in the US alone. Enterprise and Business plans serve Fortune 500s with SSO, compliance controls, and data privacy guarantees.

Features

• GPT-5 model access -- Latest multimodal GPT model handling text, image, file, and audio input with advanced reasoning
• Web search -- Real-time internet access integrated into responses for current news, prices, and live information
• Image generation -- Create and edit images using natural language through the integrated GPT Image model
• Voice mode -- Full-duplex voice conversation with natural cadence and emotional tone for hands-free interactions
• Advanced data analysis -- Upload spreadsheets or CSVs and ask the AI to analyze, calculate, and visualize results
• File uploads -- Attach PDFs, Word docs, code files, and images for the AI to read and respond about
• Canvas -- Collaborative text and code editor for longer writing or coding projects with tracked revisions
• Memory -- Cross-session recall of user preferences, ongoing projects, and personal context
• Projects -- Organized workspaces that maintain persistent instructions, files, and conversation history
• Custom GPTs -- Build or use specialized AI assistants configured for specific tasks, tones, or domains
• Deep research -- Autonomous research agent that searches the web for extended periods to compile thorough reports
• Scheduled tasks -- Set recurring AI tasks to run automatically on a defined schedule
• Operator mode -- Advanced agentic capability for multi-step browser and computer-use tasks

Best For

Individual professionals who need a versatile AI assistant for writing, research, coding, and day-to-day problem solving, Students and academics using AI to understand complex topics, summarize papers, and work through reasoning problems, Developers and engineers requiring a capable coding assistant with code generation, debugging, and explanation capabilities, Teams and enterprises deploying AI for collaborative workflows, knowledge management, and customer-facing automation, Creators and marketers drafting copy, generating images, and brainstorming content across formats and platforms

How It Works

You start a conversation in text, voice, or by uploading a file. ChatGPT responds using the currently active GPT model. For most queries, a single message and response is sufficient. For complex tasks, you can iterate within the same conversation, refining output until it meets your needs. Tools activate automatically or on demand. Web search pulls current information when your query needs recent data. Image generation (GPT Image) creates or edits visuals from text descriptions. Data Analysis runs Python code to process spreadsheets and generate charts. Canvas opens a collaborative document editor for longer writing or coding projects. Projects let you persist instructions, files, and memory across multiple conversations. Custom GPTs in the GPT Store let you access specialized assistants trained for specific domains. Scheduled Tasks run automated prompts on a timer. Memory retains important context from past chats so you don't re-explain preferences on every session.