ChatGPT remains the most widely used AI assistant, with a capable free tier and a polished interface. The consumer ladder is now Free, Go ($8/mo), Plus ($20/mo), and Pro ($100 or $200/mo); Business seats cover teams. Plus is still the default paid plan for most professionals — it unlocks the current GPT-5.6 model family, native image generation, Deep Research, Codex, Agent mode, and higher usage. Pro adds the heavier reasoning tier and GPT-6 Astra as it rolls out. It's the go-to recommendation for businesses just starting with AI. Power users who live in agentic coding or long research runs should budget for Pro (or the API) rather than fighting Plus caps. Plugins were retired years ago; connectors, Custom GPTs, and Agent mode are the current extension surface.
ChatGPT is OpenAI's flagship conversational AI for writing, analysis, coding, math, and creative work. Paid plans add the current GPT model family, native image generation, voice, file uploads, web browsing, Custom GPTs, Codex, Agent mode, and Sora video — all inside chatgpt.com.