ChatGPT

ChatGPT, developed by OpenAI, is the most widely used AI chatbot in the world. Launched in November 2022, it reached 100 million users within two months — the fastest-growing consumer application in history. As of August 2026, Free and Go users default to GPT-5.6 Luna with unlimited text chats; Plus and Pro users default to GPT-5.5 Instant for everyday chat, with GPT-5.6 Sol available as OpenAI's flagship reasoning model for complex tasks requiring extended thinking.

What ChatGPT Does Best

ChatGPT excels at general-purpose tasks: drafting and editing writing, explaining complex topics in plain language, writing and debugging code, analyzing uploaded documents, and generating images via OpenAI's latest image model (Images 2.0). It supports natural voice conversations through Advanced Voice Mode, which detects conversational tone and responds appropriately. Custom GPTs let users create specialized versions for specific workflows.

Pricing

As of August 2026, the free tier and Go ($8/month) default to GPT-5.6 Luna with unlimited text chats — other limits (file uploads, image generation) still apply. ChatGPT Plus at $20/month defaults to GPT-5.5 Instant and adds access to GPT-5.6 Sol reasoning. ChatGPT Pro (from $100/month) targets power users who need maximum usage and GPT-5.6 Sol Pro for the highest-effort reasoning.

Who Should Use ChatGPT?

ChatGPT is the right starting point for anyone new to AI assistants. Its breadth means most tasks are handled well even without specialization. Developers get API access via OpenAI's platform; enterprises can deploy custom GPTs with organizational controls and data privacy guarantees.

Limitations

For coding specifically, purpose-built tools like Cursor or GitHub Copilot often provide a better integrated experience. Knowledge has a training cutoff, though web search helps for recent events.