AI fact-checking tool that verifies any AI answer against four models (Claude, GPT, Gemini, Grok) and returns a 0–100 trust score.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
United States



Sites and apps similar to ExpressAI include Lumo by Proton, which is open source with a free version. Other options are Perplexity, Duck.ai, Jan.ai and Ensu. There's no shortage of AI Chatbots like ExpressAI, with more than 25 alternatives for Mac, Windows, Linux, Android and iPhone.
AI fact-checking tool that verifies any AI answer against four models (Claude, GPT, Gemini, Grok) and returns a 0–100 trust score.


