Launched January 6, 2026
Pheebo

Pheebo

AI makes mistakes,pheebo guards your back

FreeAIBrowser Extension230 impressions#1943 of its week

pheebo is a browser extension that helps you verify AI mathematical solutions instantly and catch calculation errors before they cause problems. It works on ChatGPT & Claude.

Pheebo is a Chrome extension that instantly verifies AI-generated mathematical solutions and highlights errors.

for
Developers, analysts and anyone using AI tools for math calculations
pricing
free
works withChromeChatGPTClaude

Key features

5 features of Pheebo
  • Selection mode — Select any mathematical expression and Pheebo instantly analyzes it for errors.
  • Automatic mode — Automatically detects and highlights math errors in AI-generated content in real-time.
  • Chrome extension — Runs directly in the browser on the Chrome Web Store with no account needed.
  • Supports ChatGPT & Claude — Works on outputs from both ChatGPT and Claude models.
  • Free installation — Install for free with no subscription or payment required.

Use cases

  • Verify AI-generated calculations in research reports
  • Catch math errors in financial spreadsheets created by AI
  • Save time by automating manual verification of AI answers
  • Reduce anxiety by ensuring AI math outputs are correct before publishing

Pheebo FAQ

Do I need to create an account to use Pheebo?+

No, Pheebo can be installed and used without any account.

Which AI models does Pheebo work with?+

It works on mathematical content generated by ChatGPT and Claude.

Is Pheebo free to use?+

Yes, the extension is free to install from the Chrome Web Store.

How does Automatic mode work?+

It continuously monitors AI-generated content and highlights any mathematical mistakes in real-time without interrupting your workflow.

Can I manually check specific expressions?+

Yes, use Selection mode to pick any expression and have Pheebo instantly analyze it for errors.

Summarized by DevHunt from pheebo.app · Oct 6, 2026. Details may change; check the official site.