TweetDetective

TweetDetective is a Chrome browser extension for journalists, researchers, and social media professionals who want to assess whether tweets on Twitter (X) were likely written by AI.

Key capabilities include:

• Real-time tweet analysis that displays an AI-generated probability percentage in the lower-right corner of tweets
• In-feed integration that works directly inside the Twitter interface, no copy-paste required
• API key setup via a dashboard, users store a confidential key in the extension to activate detection
• English-only detection (with other languages and browsers listed as future plans)

Pricing: Paid, Pro Detective at $9.99 USD/month (shown discounted from $19.99), includes unlimited use. A 7-day full refund policy is available via support.

What makes it notable: it focuses specifically on on-page AI text detection for tweets, and it reports stated performance metrics (over 97% detection, under 3% false positives), with a note that results may vary for shorter texts.