numerous.ai

Numerous.ai embeds ChatGPT directly into Google Sheets and Excel via a simple =AI() formula, letting users run bulk text generation, summarization, and categorization on spreadsheet data without leaving the sheet or managing API keys. Made by a San Francisco-based team, it caches results to avoid re-running duplicate queries (saving cost), and serves content creators, marketers, students, and product teams prototyping AI features directly in spreadsheets. Pricing is subscription-based with no permanent free tier: Personal and Pro both run $10/month billed annually (500,000 characters of input/output, 500 formula generations), with Enterprise at $10/month per seat for teams of 8+. Good fit for anyone who wants AI text processing at the cell level in a spreadsheet they already use, rather than copy-pasting data into a separate chat interface.