ChatGPT for business isn’t what it was a year ago. OpenAI has turned what started as a prompt-and-response chatbot into a full platform — 800 million weekly active users, an admin console, SSO, custom GPTs you can train on your own data, and an agent layer that’s starting to do actual work without human hand-holding.…
Claude vs ChatGPT — we compare Sonnet 5, Opus 4.6, and GPT-5.4 on coding, writing, pricing, and real use cases in 2026. Clear picks for every scenario.