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Gensai, Digital & AI solutions production studio in Paris
Custom AI solutions production
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Digital & AI solutions production studio in Paris
Gensai is a Paris-based AI agency crafting custom digital solutions: web and mobile applications, chatbots and answer engines connected to your data (RAG), AI agents and automated workflows. Projects built to be reliable, scalable and made to last.
Identify the use cases
Analysis of your processes to spot where AI creates the most value: automation, access to information, customer experience.
Build custom solutions
From POC to production: solutions designed with low-code and sovereign technologies, tailored to your challenge.
Support adoption
Team training and integration into your existing tools, for scale-up and lasting productivity gains.
Approach
Every project combines innovation, technical expertise, agility and long-term support.
Innovation
The latest AI technologies, with genuine care for design and UX: intuitive interfaces that are a pleasure to use.
Expertise
A multidisciplinary team and recognised partners, for reliable, innovative and scalable solutions.
Agility
An agile method that adapts to your constraints: every solution is tailored to answer the need precisely.
Support
End-to-end follow-through, from needs analysis to production, with training and ongoing support.
Services
Our services
Gensai offers digital services integrating AI: web and mobile applications, workflows and AI agents to automate your processes, improve customer experience or launch new digital services, always custom-built.
Answer engines
Facilitating access to information through artificial intelligence
Engines that understand natural language and query your documents or databases, for clear, sourced, immediate answers.
Learn more →Chatbots & Voicebots
Optimizing interactions with intelligent assistants
Chatbots and voicebots connected to your knowledge (RAG), in text, voice, on WhatsApp or embodied by an AI avatar: customer support, events, compliance, immersive installations.
Learn more →AI agents
Assistants capable of acting and responding autonomously
Agents that act: intelligent phone answering, document analysis, automated reporting. With guardrails and human oversight.
Learn more →Custom AI solutions
Specific developments when your need doesn't fit the mould
Automated oral assessment, call analysis, robotics, visuals generation, training: solutions designed end to end for your business.
Learn more →Projects
Our latest productions
Discover the latest projects designed to meet each client's specific needs. From applications to intelligent search engines and AI chatbots, each solution combines innovation and personalization.
Products
Our ready-to-use solutions
Gensai also builds its own products: SaaS solutions designed with industry experts, ready to deploy in your organisation. Feel free to visit the websites and contact us to learn more.
Le Répondeur Intelligent
The AI agent that answers for you
An AI agent that takes your calls 24/7: it understands every request, books appointments, qualifies emergencies and sends a clear summary. Hosted in France, GDPR compliant.
Visit the website →Mon Assistant Sommelier
Your team's food and wine pairing cheat sheet
AI that backs your dining-room teams: food-wine pairings suggested in real time, wine recommendations to complete your cellar, sales analysis and stock tracking.
Visit the website →Guide Augmenté
AI for culture, tourism and events
The generative agent for culture, events and tourism that answers, informs, guides and delivers augmented storytelling, built on a sovereign knowledge base.
Contact us →Process
A structured methodology for tailored solutions
Each project follows a structured and collaborative approach, ensuring innovative and tailored digital solutions. From needs analysis to production deployment, every step guarantees quality and successful adoption.
Audit
Needs analysis and goal definition in collaboration with clients to establish the foundation of the project.
Design
Creation of mockups, technical architectures, and intuitive interfaces tailored to the defined expectations.
Development
Development of solutions using optimal technologies, ensuring performance, security, and scalability.
Deployment
Testing, optimization, and production deployment, ensuring sustainable evolution of the solutions.
For sovereign, frugal and responsible AI
Responsibility sits at the heart of every project: GDPR and AI Act compliance, frugal and ethical AI, digital sovereignty and environmental responsibility guide our technical choices.
Gensai is listed among the trusted AI companies mapped by Hub France IA, and is a France Num Activator with the DINUM, the French State's interministerial digital directorate.
Technical expertise
Technical expertise and ethical commitment
Gensai masters a wide range of technologies and favors responsible and sovereign solutions to develop tailor-made, innovative projects that comply with ethical and regulatory requirements.
Technical solutions
Mastery of LLMs (Large Language Models), SLMs (Small Language Models) and RAG (Retrieval-Augmented Generation), backed by vector databases such as Pinecone and FAISS, addresses a wide range of needs: natural-language search, content generation, process automation. Architectures proven on our projects: sovereign answer engines, fully local voice installations, WhatsApp chatbots, intelligent phone answering agents.
On the technology side: n8n and LangChain for AI agent orchestration, LiveKit and real-time APIs for voice, and the best models on the market, Mistral, Claude, OpenAI, Gemini, or Gradium for voice AI. For hosting, sovereign clouds such as Scaleway and OVHcloud first, Azure and AWS when needed, down to On Premise or On Device deployment when the data demands it. Development in Python or Java, favouring open source and low-code.
Gensai 玄才
Mysterious talent
Gensai 玄才, a Japanese term created with generative AI, combines 玄 (gen), meaning “mysterious” and “profound,” with 才 (sai), which conveys “talent” or “ability.” Gensai translates to “mysterious talent.”
Team
Who are we?
The Gensai AI agency was founded by Jérôme Reminiac and Sébastien Lecocq, a duo of enthusiasts who have been collaborating for years to develop innovative and high-performance digital solutions.
Jérôme Reminiac
A digital communication expert who honed his skills at TBWA, Jérôme founded the Ketsu agency in 2012, then completed an MBA in AI project management at the Institut Léonard de Vinci. His strategic vision keeps every project focused on business value.
LinkedIn →Sébastien Lecocq
A digital entrepreneur, Sébastien first excelled in web and mobile development before specialising in artificial intelligence. He designs Gensai's custom AI architectures, and is an expert in vibe coding.
LinkedIn →Gensai
Contact us
55 boulevard de Strasbourg
75010 Paris