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KSN Education: Democratizing AI-powered personalized tutoring across India with Google Cloud

Google Cloud Results
  • Multimodal (text, voice, screen-share) AI tutoring powered by Vertex AI

  • Cloud Speech-to-Text and Text-to-Speech enabled new modes of learning

  • Zero infrastructure overhead with a serverless architecture built on Cloud Run

  • Robust security features of Firestore ensure strict handling of student data

KSN Education brings AI-powered learning to over 10,000 students with a serverless, Gemini-driven platform on Google Cloud.

Building an AI tutor without immense costs or complexity

Nabble AI personal tutor marketing graphic
Our challenge wasn't legacy systems, but the immense upfront cost and complexity of building a scalable, AI-powered platform from scratch. We needed to support over 10,000 students from day one without worrying about infrastructure.

Naitik Dani

Founder, KSN Education

The desire to provide a personalized "AI tutor" to every student, regardless of their location or background, drove India-based Naitik Dani to start Nabble AI, a product of KSN Education. To him, technology could level the playing field by making exam preparation tools accessible to all.

His education startup helps students from grade 11 to 12 and undergrad students, preparing for both local and international exams, such as the NEET, JEE, CET, GRE, and GMAT. Its cornerstone product, NABBLE AI, is an intelligent conversational tutor that offers 24/7 multimodal tutoring text, voice, and screen-share doubt-interaction modes. On top of NABBLE AI, KSN Education also has an AI-driven offline test paper generator for institutes.

KSN Education's product is designed to make individualized learning accessible to every student. Powered by Google AI, students can ask NABBLE AI their questions at any time, and get step-by-step, verified solutions with diagrams or voice-based explanations.

As a new AI company, KSN Education's challenge was building an intelligent education platform from scratch without incurring large upfront costs or the complexity of managing server infrastructure. KSN Education needed an infrastructure that could serve its existing user base of more than 10,000 students at launch, deliver AI-generated personalized learning journeys, and scale easily.

To accomplish this, KSN Education sought support from Google Cloud partner Pixlware Technologies, who helped to architect a serverless, AI-driven platform for KSN Education.

AI-native while ensuring responsibility, scalability, and competitive edge

Nabble architecture

The reality of building an AI tutor required a server that was scalable and operationally efficient, and a set of serverless microservices to handle the AI logic, data persistence, and application delivery.

KSN Education adopted Vertex AI to power the core of the platform. Using Gemini models, personalized learning content — including dynamic explanations and interactive quizzes that adapt in real-time to student performance — was automatically generated.

Cloud Speech-to-Text and Text-to-Speech enhanced the learning experience by allowing students to 'speak' to NABBLE AI with natural language, and receive an audio response. By catering to different learning styles, NABBLE AI increased accessibility and user engagement.

We are custodians of sensitive student data, including their learning gaps and performance history. Maintaining the privacy and security of this data is a non-negotiable organizational responsibility.

Naitik Dani

Founder, KSN Education

Meanwhile, Cloud Run, Firestore, and Cloud Storage are used for compute and storage. Adopting Cloud Run brought down high computational costs, ensuring that costs are only incurred when a user makes a request, avoiding the expense of idle infrastructure.

The built-in security rules on services, such as Firestore ensure that all sensitive student data, both in transit and at rest, are encrypted and secure. Additionally, using Cloud Run and Firestore means that KSN Education's development team can focus on the AI logic and user experience, not on managing servers. This has accelerated development and increased the speed of innovation.

In the high-stakes sector of competitive exam preparation, content accuracy and trust are key. To prevent incorrect information being shared to students, NABBLE AI uses a multi-layered validation strategy that includes rigorous prompt engineering, fine-tuning models on proprietary curriculum data, and a "human-in-the-loop" system. In this system, subject experts continuously review and rate the AI-generated content, establishing a feedback cycle that enhances content accuracy.

Going beyond test scores to holistic education

Graphic showing Nabble AI voice, camera, and screen tools
Knowing our platform can seamlessly scale gives us the confidence to execute our expansion plans without worrying about technology being a bottleneck.

Naitik Dani

Founder, KSN Education

From the time of its launch, KSN Education was able to roll out its product to its entire student base of more than 10,000 students with zero downtime and minimal infrastructure costs. KSN Education was even able to create a new B2B revenue stream for institutes: an AI exam paper generator that saves up to 10 hours per week per educator, allowing educators to shift their focus to student interaction and mentoring instead.

Through working with Pixlware, KSN Education could focus on curriculum design and pedagogical quality, while ensuring enterprise-grade reliability.

Pixlware's experience in designing and deploying solutions on Google Cloud reduced KSN Education's implementation risk and also gave the company direct access to the latest AI models of Google Cloud. The power and multimodal capabilities of the Gemini models made NABBLE AI a more intelligent and intuitive learning experience than competitors in the market.

Having achieved market validation and user adoption, KSN Education now prioritizes user growth across major Indian cities. Plans to introduce Hindi, Marathi, Telugu, Tamil interfaces are already in the works. Next, NABBLE AI will extend its product to support even more exams, such as CAT, CFA, CA, and UPSC, potentially reaching millions of users.

NABBLE AI's next chapter is about more than exam preparation – it's about becoming a proactive, all-round learning coach. The platform will expand beyond adaptive testing and real-time multimodal visual learning to include AI-driven psychometric assessments. By understanding a student's confidence levels, temperament, and learning style, NABBLE AI will deliver personalized coaching guidance and support on everything – from time management to overcoming exam anxiety. It's learning guidance that helps students thrive long after the exam is over.

KSN Education is an AI-driven education startup. Its flagship product, NABBLE AI, is a 24/7 AI tutor that offers personalized tutoring, adaptive quizzes, and instant feedback to every learner preparing for exams.

Industry: Education (Startup)

Location: India

Products: Vertex AI, Cloud Run, Firestore, Cloud Build, Speech-to-Text API, Text-to-Speech AI, Cloud Storage, Cloud Load Balancing, Cloud CDN and Media CDN, Cloud DNS, BigQuery


About Google Cloud partner - Pixlware Technologies

Pixlware Technologies is a cloud-native development partner specializing in scalable, serverless, and AI-driven applications built on Google Cloud.

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