Bioptimus Launches H-optimus-0, the World's Largest Open-Source AI Foundation Model for Pathology
11.7.2024 10:00:00 EEST | Business Wire | Press release
Less than five months after its launch, French startup Bioptimus has announced the release of H-optimus-0, the world’s largest open-source AI foundation model for pathology. With 1.1 billion parameters, H-optimus-0 is trained on a proprietary dataset of several hundreds of millions of images extracted from over 500,000 histopathology slides across 4,000 clinical practices. This sets a new benchmark for state-of-the-art performance in several critical medical diagnostic tasks, from identifying cancerous cells to detecting genetic abnormalities in the tumor.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20240711578499/en/
Rodolphe Jenatton, CTO of Bioptimus: “Having launched less than five months ago, we are excited to introduce H-optimus-0, a fully open-source model that represents a significant leap forward in the field of pathology. We are committed to advancing medical research and improving patient care. By encouraging collaboration and the adoption of new practices, we aim to speed up innovations in pathology and beyond, ultimately benefiting patients worldwide.”
Pathology is the cornerstone of disease diagnosis, requiring meticulous examination of tissue samples to identify abnormalities. Traditionally, this process relies heavily on pathologists' expertise and experience. However, the increasing complexity and volume of cases necessitate advanced tools that can assist pathologists in making faster, more accurate diagnoses.
H-optimus-0 Key Features and Capabilities
- Unmatched Scale and Performance: With 1.1 billion parameters, H-optimus-0 is the largest open-source AI model tailored specifically for pathology, ensuring comprehensive analysis and high accuracy.
- Extensive Training Dataset: Trained on a vast dataset of over 500,000 pathology slides, H-optimus-0 has been exposed to a diverse array of cases, enabling it to generalize effectively across different diagnostic scenarios.
- State-of-the-Art Diagnostics: H-optimus-0 achieves state-of-the-art performance in several key diagnostics tasks, consistently meeting the performance or outperforming existing models and setting new standards in the field. The model was assessed on 5 tile-level tasks to identify tissue types or tissue characteristics and 6 slide-level tasks to detect the presence of biomarkers or the presence of metastasis across several cancer types.
- Open Source Availability: As an open-source model, H-optimus-0 can be utilized by researchers to accelerate the development of novel digital pathology models and will foster collaboration among researchers, clinicians, and developers, driving further advancements and solutions in pathology AI.
With its unprecedented scale and depth of training within the open-source community, H-optimus-0 leverages cutting-edge AI technology to enhance the precision and efficiency of pathology diagnostics.
Professor Jean-Philippe Vert, PhD, co-founder and CEO of Bioptimus, said: “H-optimus-0 is just the beginning. It marks the first in a long series of models we will create at Bioptimus, each more advanced and comprehensive than the last. Future models will not only be trained on an even larger number of pathology images from Europe, Asia and Africa but will also incorporate other modalities, such as genomics and proteomics. Our ultimate goal is to create the first multiscale foundation model of biology, capable of integrating diverse biological data and scales to enable scientific discoveries and accelerate biomedical innovations.”
You can access the model, detailed documentation, and research findings on our GitHub repository here.
About Bioptimus
Bioptimus is building the universal AI foundation model in biology to drive advancements in scientific research and biotechnological innovation. Leveraging a team of world-class experts, employing state-of-the-art AI technologies and accessing unique proprietary data at scale, we aim to fuel breakthrough discoveries and accelerate innovations in biomedicine and beyond. For more information, please visit https://www.bioptimus.com.
View source version on businesswire.com: https://www.businesswire.com/news/home/20240711578499/en/
Contacts
stephanie.libous@owkin.com
About Business Wire
For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.
www.businesswire.com

Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Andersen Consulting Strengthens Capabilities with Addition of Lukkap31.3.2026 16:30:00 EEST | Press release
Andersen Consulting adds collaborating firm Lukkap, a consultancy focused on experience-driven capabilities aligned with clients’ evolving people, customer, and digital transformation needs. Founded in 2009 and headquartered in Spain, Lukkap delivers integrated solutions that help organizations transform how they serve customers, engage employees, and unlock value through behavioral insights and data analytics. The firm’s multidisciplinary approach spans customer journey redesign, high-impact employee experience programs, talent and leadership development, predictive analytics, and comprehensive outplacement and transition services. Lukkap works across sectors — including healthcare, pharmaceutical, consumer goods, retail, finance, and banking — to build human-centered strategies that drive measurable business results. “By combining our experience-led methodology with Andersen Consulting’s global platform, we can accelerate the way organizations approach customer experience,” said Albe
Sub-Q Bionics Closes $1.5M Pre-Seed Round to Advance Next-Generation Solution for Lymphedema Care31.3.2026 16:26:00 EEST | Press release
Sub-Q Bionics, a medical device company developing next-generation solutions to improve care for patients living with lymphedema, today announced the successful close of its $1.5 million pre-seed funding round. The round includes investment from Mayo Clinic and Yeda, the technology transfer company of the Weizmann Institute of Science, as well as several private investors. The Israel Innovation Authority also provided matching funds. The funding will enable Sub-Q Bionics to continue to develop its novel bionic lymph node technology designed to transform how lymphedema is managed, based on scientific innovations from the Weizmann Institute and Shamir Medical Center. The system aims to provide a solution to manage fluid with a subcutaneous implant that will allow patients freedom of movement, automatic fluid management and reduction of symptoms such as pain and swelling. Lymphedema affects millions of patients worldwide, especially breast cancer survivors, and remains significantly under
HTEC Achieves SOC 2 Type II Attestation, Reinforcing Commitment to Client Trust31.3.2026 16:25:00 EEST | Press release
HTECtoday announced that it has successfully achieved a SOC 2 Type II attestation, audited by Deloitte, demonstrating the company’s commitment to maintaining high standards in security, availability, and confidentiality. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260331132225/en/ HTEC today announced that it has successfully achieved a SOC 2 Type II attestation, audited by Deloitte, demonstrating the company’s commitment to maintaining high standards in security, availability, and confidentiality. For clients, this means working with a technology partner whose practices are standardized, consistently executed, and independently verified over time. It reflects a level of operational maturity where security, reliability, and data protection are built into every engagement. Achieving this standard required coordinated effort across the entire organization. Compliance, engineering, delivery, security, IT, legal, and people t
Impartner Redefines Partner Marketing Automation with Full Automation, AdTech and AI to Drive Measurable Revenue31.3.2026 16:00:00 EEST | Press release
Impartner, the world’s leading partner revenue orchestration platform, today announced a major advancement that unifies partner marketing automation within the platform, powered by full automation, AdTech and AI to turn partner marketing into measurable revenue. As partner ecosystems expand across regions, marketplaces and multi-tier models, marketing execution has often remained fragmented. Impartner eliminates those gaps by unifying recruitment, enablement, campaign automation and performance tracking within a single operational system, making partner demand generation and marketing fully operational, measurable, and scalable across all partner interactions. “What makes partner marketing successful is not content distribution, it’s execution, scale and measurable pipeline and revenue,” said Emile van de Klok, Senior Director of Channel Marketing Solutions at Impartner. “By redefining partner marketing automation and embedding it directly into our revenue orchestration platform, we en
Lotte Rental Speeds Growth and Innovation with Multiyear Partnership with Rimini Street31.3.2026 16:00:00 EEST | Press release
Rimini Street, Inc. (Nasdaq: RMNI), the Software Support and Agentic AI ERP Company™, and the leading third-party support provider for Oracle, SAP and VMware software, today announced that Lotte Rental, South Korea’s leading car rental company, has selected Rimini Street to provide support for its Oracle and SAP systems. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260331863399/en/ Lotte Rental Speeds Growth and Innovation with Multiyear Partnership with Rimini Street A leader in the rental industry for over 40 years, Lotte Rental operates 300 branches across Korea and subsidiaries in Thailand and Vietnam and offers car sharing and used car sales. To drive its vision of accelerating growth and staying ahead in the mobility industry, the company has restructured its IT systems and invested in next-generation technology to power innovation and support its strategic expansion plans. Cost Savings and System Stability Fuel Inno
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom