Pinterest introduced a system in April 2025 to automatically detect when an image has been created or significantly altered by AI tools, and labels those images visibly for users browsing the platform. In October 2025, Pinterest added user controls allowing people to reduce how much AI-generated content appears in specific categories of their feed — including beauty, art, fashion, and home décor. The company estimates that approximately 57% of all internet content contains some degree of AI modification.

The detection system analyzes metadata using the IPTC Photo Metadata Standard (an industry format that can record whether an image was AI-generated) as well as machine learning classifiers that examine pixel-level characteristics — such as noise patterns and color distribution — to identify signs of AI generation. Detected content receives an "AI modified" label visible on the Pin. The company has acknowledged the system produces false positives: artists have reported that hand-drawn work was incorrectly flagged, with some accounts receiving automated bans as a result. The 404 Media outlet documented multiple such cases. Pinterest's user filtering controls, launched October 2025, let users reduce (but not entirely eliminate) AI-generated content from specific feed categories.