ChatGPT – AI Assistant by OpenAI

ChatGPT – AI Assistant by OpenAI

ChatGPT is the world’s most popular AI conversational assistant, developed by OpenAI. Powered by the groundbreaking GPT-5 model as of 2026, ChatGPT can understand and generate human-like text, images, audio, and video in real-time. With over 400 million weekly active users, it has become the go-to AI tool for students, professionals, developers, and creators worldwide.

Key capabilities include natural language conversation, code generation and debugging, creative writing, data analysis, image generation via DALL-E 4, real-time web search with source citations, and Advanced Voice Mode with natural speech interaction and emotional range. The platform supports Custom GPTs through its GPT Store marketplace with over 5 million custom agents, collaborative Canvas workspaces for side-by-side editing, and project-based organization for managing complex workflows across multiple files and contexts.

ChatGPT also offers file upload support for images, PDFs, Word documents, Excel spreadsheets, and code files. It can analyze uploaded data, generate charts, summarize documents, and extract key insights. The web browsing feature lets ChatGPT access real-time information, making it useful for research, news analysis, and fact-checking tasks.

For developers, OpenAI provides a comprehensive API that powers thousands of third-party applications. The API supports GPT-5, GPT-4o, and specialized models for different use cases, with pay-as-you-go pricing starting at competitive rates per token.

ChatGPT is available as a free tier with basic access to GPT-4o mini, a Plus plan at $20/month offering full GPT-5 access, and a Pro plan at $200/month for unlimited usage and priority access. Enterprise plans with SSO, analytics, admin controls, and dedicated support are also available for organizations with 150+ seats.

Website: chat.openai.com

Pricing: Free, Plus ($20/month), Pro ($200/month)

Platforms: Web, macOS, Windows, iOS, Android