Projects

Most AI benchmarks measure what a model can do, not what it does to the people using it. ImpactBench is an open, expert-guided platform that evaluates whether AI models support or undermine human flourishing across psychological, physical and social domains, through 48,540 simulated multi-turn conversations with adult and teen users.

Website: impactbench.media.mit.edu

An AI that blends into your house environment
Jan. 2026 - Present

OM (inspired by the hOMe) is an omnipresent AI that blends into your existing house decoration and allows you to communicate with it through voice or gestures instead of only your phone. It is intended to be used as a new type of medium for AI applications and agents to interact with humans, giving emphasis on the personalization of the physical form that allows it to adapt to the users’ aesthetic.

Website: om.nikosbellos.com

There is need for new more intuitive and interfaces in the space of cultural engagement. Athens is a place with chaotically many events each week. We created an app that uses your context to alleviate the clutter of information and recommend you events you would have otherwise missed or spent hours on searching.

Website: calt.gr

An AI tutor that pays attention to you
Jan. 2025 - May 2026

NeuroChat is a neuroadaptive AI tutor that combines generative AI with real-time EEG data to create a personalized, dynamic learning experience. This project addresses one of the most pressing challenges in digital learning and AI-human interaction: how can an AI tutor move beyond static responses and actually sense user engagement?

Website: media.mit.edu/neurochat

With energy pricing getting out of control in Greece and consumers not being aware how much energy they consume and can potentially save, we are developing EVE, a platform that tracks your energy data and helps you save money.
The app tracks your habits and provides feedback on the money you waste for electricity depending on the energy providers’ offerings.

Photography can be liberating, from an engineering student to an older professional.
I founded and managed this photography club along with an inspired team, for bringing students (and not only) closer to photography and the digital arts, through seminars from professional photographers, workshops, excursions, our own held photography exhibitions and more.

Website: photo.ntua.gr

I organized an open-air cinema to host events for cinema and performance arts.
It is an open space, open to all people, mostly locals and friends, gathering during summer to watch films and exchange words. Koukaki Film Festival was the most famous event, screening old and new films for the month of September.

With supermarket prices on the rise and consumers struggling to identify fair deals amidst hidden price hikes, we developed Robinstore, an app that empowers you to make informed choices and save money. By comparing product prices across stores in real-time, Robinstore uncovers the best deals, helping you avoid overpriced items and choose the right supermarket for your list.

Odyceo is NTUA’s first entrepreneurship society, helping engineering students turn ideas into startups. It connects them with tech professionals and VCs through lectures and workshops. In just three months, it hosted three events with 120+ attendees, building a strong community.

Website: odyceo.ntua.gr

SALTY is a clothing brand concept born in 2023 after returning to Athens from Barcelona, inspired by the power of overcoming physical and mental challenges through sports, particularly surfing.

SALTY aims to create stylish, comfortable clothing for individuals who embrace the surf lifestyle and value recovery after hard sessions in the sea.

With limited production, it serves as a creative experiment in branding, marketing, and community building ...

Noobcash is a project to get familiarized with the technological concepts of blockchain.
It is an open-source project that has the goal of high performance across multiple distributed nodes that perform transactions simultaneously.

Get to know more about the architecture and results ...

Website: github.com

I participated in the TEDxNTUA 2020, 2021 events.
TEDxNTUA is an independently organized TED event at NTUA, promoting ideas through talks, workshops, and community engagement.
A group of volunteers from university gather each year to unleash their creativity, collaborate throughout the year, to give life to a unique thematic one-day event.

Website: tedx-ntua.com

Two friends and now students, one in Greece and the other in Switzerland, tackle current topics in science and technology every week, diving into discussions while sharing personal views and concerns.

Hosts: Nikos Bellos & Konstantinos Spinakis

Website: soundcloud

Organized by IEEE, Advantage Austria and SICK technologies, the Sensors & Coding hackathon gave us the opportunity to experiment with industrial sensors to present a demo of a solution around Smart Cities, Industry 4.0 and Renewable Technologies.
In 2 days, we demoed a smart traffic light solution to combat the huge traffic problem Athens faces.