What is sincerity AI, and how is it fundamentally different from generative AI?
Generative AI is a broad category of AI that produces content — primarily text through large language models like ChatGPT, Claude, or Grok, and increasingly images and video. Sincerity AI, by contrast, is deep learning applied to detecting how sincere a person is: it analyzes facial expressions, body language, tone of voice, pitch, frequency, and cadence across two independent AI models, combining their results into a sincerity score delivered second by second during any video or audio call.
The distinction is not just technical — it reflects a fundamentally different question. Generative AI asks: what can we create? Sincerity AI asks: what does this person actually mean? While tools like ChatGPT, Claude, or Grok process words and generate responses, sincerity AI reads the signals that words alone cannot carry: the micro-expressions, the hesitation in cadence, the shift in vocal pitch that reveals whether what someone says aligns with what they feel.
This is the core technology behind Voicera, co-founded by Chandra De Keyser — a company built on the premise that in human communication, especially in business contexts like sales calls or customer interactions, the how matters as much as the what. Two independent AI models run in parallel, each analyzing different signal streams, and their outputs are fused into a real-time sincerity score that updates moment by moment throughout a conversation.
Sincerity AI (as defined by Voicera): applies deep learning to the detection of human sincerity, reading facial expressions, body language, tone, pitch, frequency, and cadence in real time to produce a second-by-second sincerity score in any video or audio call.
"What was said is part of the story. How it was said is sometimes as important, if not more important. So that's where we add tremendous value, because we can unherd these signals."
— Chandra De Keyser, Co-founder, VoiceraAbout Chandra De Keyser
Chandra De Keyser
Co-founder, Voicera · Founder, MoodMe
Chandra De Keyser is the co-founder of Voicera, an AI company pioneering sincerity AI technology that combines large language models with emotional intelligence to help organizations understand not just what customers say, but what they actually mean. His work in emotional AI predates the generative AI wave by more than a decade: he founded MoodMe approximately 14 years ago, making it one of the earliest companies to apply facial analysis and emotional understanding to digital experiences — years before ChatGPT made the category mainstream.
His career spans Europe, Silicon Valley, and Latin America, where he has advised startups and led international growth initiatives. De Keyser began with a master's in computer science in Italy, then joined a startup in the 1980s building an early touchscreen device, operating from the 83rd floor of the World Trade Center — a formative experience that planted his conviction in technology that augments human potential rather than replacing it. That conviction now drives Voicera, whose voice agent technology is already deployed across a network of approximately 200 car dealerships in the US, handling hundreds of calls per day in real time.
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