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Thine

Category: AI Infrastructure

An ambient, always-on AI intelligence app that captures, synthesizes, and organizes daily conversations and thoughts using existing smartphone hardware. Thine was founded in 2025. The company is led by Pratyush Rai. Based in San Francisco, USA. Team size: 10-50. Total funding raised: Undisclosed. Latest round: Seed, Undisclosed, 2025-01, led by Undisclosed. Key investors include Better Capital, Angel investors from the Merlin AI ecosystem.

Founded
2025
Headquarters
San Francisco, USA
Team size
10-50
Total funding
Undisclosed

Value proposition

Delivers seamless, privacy-first ambient intelligence that turns everyday interactions into actionable insights without the need for expensive, proprietary wearable devices.

Products and solutions

Thine Mobile App (Always-on ambient recording), Contextual Synthesis Engine (Automated meeting/conversation notes), Personal Knowledge Vault (Searchable interaction history), Privacy-First Local Processing Layer

Unique value

Unlike competitors requiring dedicated hardware (pendants or pins), Thine optimizes standard smartphone hardware for continuous background processing without significant battery drain.

Target customer

Knowledge workers, entrepreneurs, and high-productivity individuals seeking a 'second brain' or 'co-founder for life' to manage information overflow.

Industries served

Consumer Technology, Productivity Software, Enterprise Communication, Personal Knowledge Management (PKM)

Technology advantage

Proprietary ambient conversation processing and NLP models designed for 'always-on' utility; focuses on a software-first approach to scale faster than hardware-dependent rivals.

How they differentiate

Thine differentiates through a hardware-agnostic, software-first approach. Unlike competitors like Limitless or Omi that require proprietary wearable pendants, Thine optimizes standard smartphone hardware for 'always-on' ambient recording without significant battery drain, reducing social friction and hardware costs.

Main competitors

Limitless (formerly Rewind AI), Omi (formerly Friend), Granola, Otter.ai

Key partnerships

Early-stage VC syndicate partners, Merlin AI (Strategic alignment/Founding team crossover), Consumer electronics ecosystem partners (CES 2026 showcase)

Notable customers

Knowledge workers, Early-stage founders, Productivity enthusiasts

Major milestones

Official debut of the 'always-on' AI notetaker at CES 2026, Transition of core leadership team from Merlin AI to Thine in 2025, Successful optimization of background ambient processing for iOS and Android hardware

Growth metrics

Scaled previous venture (Merlin AI) to 1M+ users; Thine currently in early-market launch phase following CES 2026 debut.

Market positioning

Premium personal productivity and 'Second Brain' assistant for high-output knowledge workers and entrepreneurs.

Geographic focus

Global (primarily North America and English-speaking tech hubs)

Patents and IP

Proprietary privacy-first ambient intelligence architecture (Specific patent registrations not publicly disclosed).

About Pratyush Rai

Pratyush Rai is a serial entrepreneur and the Co-founder/CEO of Thine. He previously co-founded Merlin AI (Merlin by Foyer), a prominent Generative AI platform that scaled to over 1 million users within its first year. He is an alumnus of the Indian Institute of Technology (IIT), Kanpur, and is recognized for his expertise in product-led growth (PLG) and scaling consumer AI applications.

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