Ethics & Humanism
Responsible AI
Transparent, explainable models oriented toward bias mitigation. Human-centered technology.
Software Craftsman · Cyberpunk · CTO
Xavier Vinaixa
High Tech Low Life
AI from humanism and ethics
CTO at Sorensen.ai · Barcelona
55M+
Downloads
~20
Years exp.
40+
Apps
60%
TOON savings
// 01 About
Building technology for people
Software craftsman and artificial intelligence specialist with a humanist and ethical vision. Nearly two decades creating and scaling digital products — from mobile apps with 55 million downloads to immersive virtual reality projectors for hospitals.
Currently leading AI research at Sorensen.ai, working on SignarIA — an EU-funded project (Next Generation EU) to create personalized radio sonic identity for deaf sign language users, led by UPF.
Public television contributor (Badalona 360). Creator of python-toon (most used Python TOON library) and collaborator on TOON Format with its own Wikipedia page.
Human Factor
Beyond code
Bass player in LLAMP (EP Claredat 2023) and The Singletons (200K+ listens). SUP competitor at CN Bétulo. 3rd in Catalonia indoor rowing 2023 with REM Premià. Gold Medal at BCN Beer Fest with Brew by Code. Cooking channel created during COVID (200+ subscribers, videos with 30K+ views). President of Opendata.cat (Open data advocacy association). President of ABAT (Craft beer association of Tiana).
Outreach
TV, radio & newsletter
Monthly contributor on TV Badalona 360 and Radio Ciutat de Badalona. Catalan-language newsletter on AI and humanism. xaviviro.substack.com
// Sorensen.ai
Sorensen.ai — AI for Culture and Accessibility
As CTO, I lead AI research applied to media, culture, and the arts. The goal: turning AI into accessible tools — summaries, easy-to-read versions, sign language translations, and real-time subtitles.
EU Funded · Next Generation EU · UPF
SignarIA
Project funded by Next Generation EU and led by Universitat Pompeu Fabra to create personalized radio sonic identity for deaf sign language users. Combines AI voice synthesis with Catalan Sign Language (LSC).
AIAccessibilityNLPVoice SynthesisLSCEU
// 02 Projects
Innovation with impact
Every project with verifiable references.
AI · LLM · Data Format
python-toon / TOON Format
Creator of python-toon · TOON Collaborator · 2025
Creator of python-toon, the most used Python library for TOON (Token-Oriented Object Notation) — data format reducing LLM tokens by 30-60%. Collaborator on the official project. Wikipedia page, coverage in InfoQ, freeCodeCamp, Analytics Vidhya, and Hacker News.
AI LLM Data Format TypeScript Python
LLM · Fine-tuning · Catalan
FLAMA & SUGARRA
Creator · 2023–2024
FLAMA — first small model to speak Catalan (Llama 3B fine-tune, 2023). SUGARRA — first small model in Basque (Llama 3B fine-tune, 2024). Creator of the FEDERICO-GARCIA-LORCA dataset (songs, poems, and ballads). LoRAs published on CivitAI, including CyberNeon FLUX (1.2K favs).
LLM Fine-tuning Catalan Basque LoRA
GANs · Diffusion · Python
Refacer
Creator · Open Source
One-click multiple face swap in video. Built on GANs and diffusion models. GitHub: Pair Extraordinaire, Pull Shark.
GANs Diffusion Python Computer Vision
VR · MedTech · Hardware
BROOMX Technologies
Co-founder & CTO
First immersive VR projector for hospitals. Real-time projection mapping, spatial sensors, geometric correction to prevent cybersickness.
VR MedTech Hardware 3D
IoT · Open Source · Sensors
Smart Citizen
Architect & Developer · Fab Lab Barcelona (IAAC) · Since 2012
Designed the architecture and built the first version of the platform and the first iOS app. Open-source citizen environmental sensor platform deployed in Barcelona, Amsterdam, and Manchester with partners like Cisco and Intel. Referenced on DATA.GOV (US). Deployed a sensor network in Tiana (2020-2021).
IoT Open Source Sensors Open Data
AI Art · Generative · Installation
LOVYU
Co-founder · 2024
Immersive AI art installation simulating Mario Tarragó's painting style to generate 'soul portraits'. 600+ visitors, ~360 portraits.
AI Art Generative Installation
Music Tech · Hardware · IoT
Oval Sound
Lead Developer · 2014
World's first digital handpan. Electronic instrument with multi-gesture sensors, Bluetooth, and MIDI. €348K raised on Kickstarter with 680 backers.
Music Tech Hardware IoT Kickstarter
AI · Music · NLP
KaraokeIt
Creator · 2020
AI-powered lyrics aligner for karaoke. YouTube channel with 900+ subscribers and videos with 40K+ views.
AI Music NLP Forced Alignment
WhisperX · Axolotl · llama.cpp
Open Source Contributions
Contributor
WhisperX (forced alignment, diarization). Axolotl (LoRA training). llama-cpp-python (local quantized model execution).
WhisperX Axolotl llama.cpp
// 03 Career
Two decades of impact
2023 — Present
Chief Technology Officer
Leading AI research for accessibility. SignarIA, real-time computer vision, NLP, sign language translation.
2018 — 2023
Co-founder & CTO
Immersive VR projector for MedTech. Projection mapping, geometric correction, spatial sensors.
2015 — Present
Co-founder & CTO
Connectivity services management and scalability platform.
2012 — Present
Founder & Tech Lead
IOAPPS
40+ apps, 55M+ downloads. Distributed systems, massive concurrency, payment gateways.
2005 — 2012
IT Department
Ajuntament de Badalona
First open data portal of a Spanish municipality. BDN Bústia: first app for citizens to report public road incidents to city council with tracking.
// 04 Media & Press
Outreach and coverage
Newsletter
Substack in Catalan
Exploring how to maintain human purpose. AI critique, algorithmic ethics, techno-feudalism, death of the author.
- High tech, low life: la resistència cíborg contra el tecnofeixisme
- La intel·ligència de la IA només és el reflex de la teva
- El càlcul energètic de la misantropia
- L'algoritme està buit i nosaltres també
- Diumenge vaig fer el ridícul: el dia que l'algoritme em va donar el que volia veure
- La mort de l'autor i l'al·lucinació de la màquina
- L'elogi del 'glitch': i si l'al·lucinació fos la creativitat de la màquina?
- No, l'escala no és tot el que necessites
Subscribe to the newsletter
xaviviro.substack.comRadio
Catalunya Ràdio — Popap with Mariola Dinarès
"A true problem solver" — From creating an app to win at Apalabrados to developing an immersive VR projector with entertainment, educational, and medical applications.
15/03/2022 · 23 min
Radio
RTVE — L'Entrellat with Rosa Pera
Masterclass on artificial intelligence on L'Entrellat, Ràdio 4 (RTVE). Conversation with Rosa Pera about the present and future of AI.
RTVE · Ràdio 4
Talks & Workshops
Talks, lectures and workshops
Participation in forums, conferences and workshops on AI, open data, tech ethics and social impact.
Social Media
Reels — AI Opinion
Short-form reflections on tech news and AI from a critical, humanist perspective. On the @wearesorensen Instagram account.
Vibe coding: do we still need programmers?
Apr 2025 5.2K 131
Do you thank your coffee machine?
May 2025 4.8K 104
Not all AI is Google
Jun 2025 6.1K 138
Does your toothbrush need AI?
Jun 2025 5.5K 133
Do we need an AI-generated minister?
Sep 2025 4.3K 100
P*rn comes to ChatGPT: age control
Oct 2025 3.8K 82
Public TV
Badalona 360 Appearances
Regular contributor on public television explaining AI, ChatGPT, foundational models, and tech ethics to the general public.
YouTube PlaylistPress
Media coverage
Articles in reference publications — from TOON Format coverage in InfoQ and freeCodeCamp, to interviews on Catalunya Ràdio, El Español, and VIA Empresa.
VIA Empresa InfoQ freeCodeCamp El Español El Español (II) Catalunya Ràdio 3Cat/TV3 Voz Libre Línia Xarxa DEV Community Territorimac TuExpertoApps Analytics Vidhya Wikipedia Hacker News RTVE / Ràdio 4 La Local (Xatbot electoral) La Local (Sensors ambientals) La Local (Qualitat de l'aire) La Local (Coronavirus Trivial) La Local (BrewByCode) Cuatro XEU.cat (Opendata.cat) VilaWeb (Open Data)
// 05 Contact
Let's connect
Available for advisory, keynotes, technical collaborations, and social impact projects.