ChatGPT

The most widely used AI assistant in the world, built by OpenAI on the GPT-4 architecture. ChatGPT handles everything from answering complex questions to writing code, drafting emails, and brainstorming creative projects — making it indispensable for professionals, students, and creators alike.

• Conversational AI — natural back-and-forth dialogue with memory across sessions • Code generation & debugging — write, explain, and fix code in dozens of languages • Image generation — create visuals with DALL-E integration directly in chat • File & document analysis — upload PDFs, spreadsheets, and images for instant analysis • Custom GPTs — build and share purpose-built assistants for specific workflows • Web browsing — search the internet for real-time information and citations

Free tier available. ChatGPT Plus starts at $20/mo with GPT-4o access.