Evidence-backed European AI register
Leftshift One
Reviewed identity, roles, model listings, pricing and evidence for Leftshift One.
Dataset compiled 2026-08-28 · evidence over inference
Reviewed identity
- Headquarters scope
- EU headquarters
- Headquarters country
- Austria
- Headquarters city
- unknown
- Legal entity
- GmbH
- Ownership
- private
- Founded
- 2017
- Confidence
- low
- Last verified
- 2026-08-22
Headquarters evidence
HEAD OFFICE GRAZ: Dipl.-Ing. Patrick Ratheiser, MSc (CEO) & DI Christian Weber, BSc (CTO) Herrengasse 3 8010 Graz Austria / Europe HEADQUARTER: Research & Product Development Triester Straße 210 8073 Feldkirchen bei Graz Austria / Europe
Leftshift One’s own imprint uses two qualifying terms — HEAD OFFICE and HEADQUARTER — both bound to the organisation and both to addresses in Austria, so the EU headquarters scope is firmly supported at country level.
Evidence boundaries
Organisation listings identify a reviewed canonical record. Headquarters is independent of incorporation, registered offices, ownership, hosting and runtime. Model listings show an association in the source register; they do not by themselves establish model creation, current API availability, hosting location or infrastructure ownership.
Model listings
- Company-specific GPT models built on the AIOS (Artificial Intelligence Operating System)
- Type
- text
- Parameters
- unknown
- Context
- unknown
- Languages
- German
- Licence
- proprietary
- Release
- unknown
Profile note
Graz-based Austrian AI vendor since 2017 selling AIOS, described as Europe's first independent AI operating system, plus enterprise-specific GPT models with a strong privacy/on-prem framing (used in Austrian health insurance). Whether it pre-trains base models could not be verified; treat as a sovereign deployment platform with fine-tuned models. No public pricing.