ChatGPT (OpenAI)

ChatGPT subscription plans include Free ($0), ChatGPT Plus ($20/month), ChatGPT Pro with two tiers ($100 and $200/month launched April 2026), ChatGPT Business ($25/user/month), and ChatGPT Edu for universities. The Pro tier provides 5x Plus quotas, 50 Deep Research sessions per month (Pro $100), and 20x Plus quotas with 250 Deep Research sessions, Sora video generation, and 1M context window (Pro $200). Free tier includes GPT-5.3 with 10 messages per 5-hour window. Business includes data analysis, Canvas, Projects, Tasks, custom workspace GPTs, and connectors to Google Drive, SharePoint, GitHub, Notion. OpenAI APIs are billed separately.