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
emnify Appoints Sacha Herrmann as Chief Financial Officer and Christian Friis as Chief Revenue Officer2.10.2026 18:12:00 EEST | Press release
emnify, a global leader in IoT connectivity, today announced the appointments of Sacha Herrmann as Chief Financial Officer and Christian Friis as Chief Revenue Officer, effective immediately. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20261001902751/en/ emnify Appoints Sacha Herrmann as Chief Financial Officer and Christian Friis as Chief Revenue Officer The appointments follow the recent naming of Kenneth De Spiegeleire as Chief Executive Officer and Frank Stoecker as Executive Chairman of the Board. Together, these leadership changes strengthen emnify financial, operational, and commercial capabilities as the company enters its next phase of international growth. “We have proven momentum. Our ambition is to now turn it into global category leadership,” said Kenneth De Spiegeleire, CEO of emnify. “That requires sharper focus, disciplined execution, and the right capabilities in the right seats. Sacha brings financial lead
Tacton Appoints Former IFS Executive Merlin Knott as Chief Commercial Officer to Accelerate Global Growth and Scale Beyond CPQ2.10.2026 16:00:00 EEST | Press release
Tacton, a global leader in Configure, Price, Quote (CPQ) software and configuration solutions for manufacturers of complex products, today announced the appointment of Merlin Knott as Chief Commercial Officer (CCO). In this role, Knott will lead Tacton’s global commercial organization, including marketing, sales, and pre-sales, aligning the teams responsible for bringing Tacton’s solutions to market, and driving value to its customers and partners globally. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20261002794882/en/ Merlin Knott, Chief Commercial Officer, Tacton Knott joins Tacton with decades of experience building and scaling commercial organizations across the enterprise software industry. Most recently, he held senior leadership roles at IFS, the world’s leading provider of Industrial AI software, where he led global partner and channel operations before becoming President of the company’s Enterprise Service Manageme
EDW Presents 2026 Data Quality Award to Repeat Winner Domivest2.10.2026 16:00:00 EEST | Press release
European DataWarehouse (EDW) presented its fifth annual Data Quality Award at the 2026 TSI Congress in Berlin. This year, EDW's Best Data Quality – Deal of the Year (2026) award was presented to Domivest B.V. for its transaction Domi 2023-1 B.V., recognising the firm's outstanding commitment to accurate, complete, and consistent reporting. The award is based on EDW's proprietary data quality scoring methodology, which evaluates transactions against thousands of validation rules and checks. Data quality excellence is not a one-off achievement. The fact that the same issuers continue to rank among the top performers year after year demonstrates that superior data quality is the result of sustained commitment, robust processes, and ongoing investment. "Receiving the Data Quality Award for a second time means a great deal to us. Transparent, accurate loan-level data is key to investor trust in our transactions, and we are grateful to European DataWarehouse for recognising the work our trea
ILiAD Biotechnologies Expands BPZE1 Public Health and Commercial Potential with Publication of Pediatric Phase 2b Study in The Lancet Infectious Diseases2.10.2026 15:00:00 EEST | Press release
ILiAD Biotechnologies, Inc. (ILiAD), an advanced clinical stage biotech company focused on the prevention and treatment of disease caused by Bordetella pertussis, today announced the publication of results from its Phase 2b SUPER (Stand Up to Pertussis) clinical trial in The Lancet Infectious Diseases. This randomized, double blind, placebo- and active-comparator-controlled trial demonstrated that BPZE1, a live attenuated intranasal pertussis vaccine, induced robust nasal mucosal immune responses in healthy children aged 6 through 17 years (LINK). The study demonstrated that a single intranasal dose of BPZE1 induced nasal mucosal immune responses against all Bordetella pertussis antigens tested and was well tolerated, both when administered alone and when co-administered with a tetanus-diphtheria-acellular pertussis (Tdap) booster vaccine. The multi-center Phase 2b trial enrolled 366 participants across 16 sites in the United Kingdom, Australia, and Costa Rica and included participants
NIQ Brings New AI and Automation Capabilities to Retail Space Planning and Merchandising2.10.2026 13:45:00 EEST | Press release
NielsenIQ (NYSE: NIQ), a leading consumer intelligence company, today announced new AI and automation capabilities for NIQ Spaceman®, its retail space planning and merchandising platform trusted by more than 600 retailers across 65+ countries. The enhancements help retailers create store-specific planograms up to 50 times faster, identify execution and compliance gaps, and scale merchandising decisions across their store networks through expanded cloud-based access. "Retailers are under increasing pressure to localize assortments, execute consistently across stores, and respond more quickly to changing shopper behavior," said Natalie Williams, SVP, Product at NIQ. "These enhancements help simplify that process by embedding agentic AI directly into merchandising workflows and automating traditionally manual planning tasks. That means teams can spend less time building and updating planograms and more time acting on opportunities. With greater automation, retailers can improve productivi
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