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
Mobix Labs Signs Definitive Agreement to Acquire Vision Aerial, Accelerating Global Drone Platform for National Security and Aerial Intelligence24.7.2026 14:00:00 EEST | Press release
Mobix Labs, Inc. (Nasdaq: MOBX) today announced that it has signed a definitive agreement to acquire Vision Aerial, Inc., a U.S.-based designer and manufacturer of American-built, National Defense Authorization Act (NDAA)-compliant unmanned aerial systems. The definitive agreement moves the transaction beyond the previously announced letter of intent and represents a major step toward closing an acquisition that would expand Mobix Labs into one of the world’s most important technology growth markets: secure drones, autonomous aerial systems and aerial intelligence for national security, critical infrastructure, energy, public safety, industrial inspection and government operations. Vision Aerial’s customers and end-users include the U.S. Air Force, U.S. Navy, government agencies, energy and utility operators, research institutions and other organizations requiring performance, reliability and trusted supply chains. Its drones support national security and public-safety operations, sear
Enhertu ® Plus Pertuzumab Recommended for Approval in the EU by CHMP as First-Line Treatment for Patients with HER2 Positive Metastatic Breast Cancer24.7.2026 14:00:00 EEST | Press release
Enhertu® (trastuzumab deruxtecan) in combination with pertuzumab has been recommended for approval in the European Union (EU) for the first-line treatment of adult patients with unresectable or metastatic HER2 positive (immunohistochemistry [IHC] 3+ or in-situ hybridization [ISH]+) breast cancer. Enhertu is a specifically engineered HER2 directed DXd antibody drug conjugate (ADC) discovered by Daiichi Sankyo (TSE: 4568) and being jointly developed and commercialized by Daiichi Sankyo and AstraZeneca (LSE/STO/NYSE: AZN). The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) based its positive opinion on results from theDESTINY-Breast09 phase 3 trialpresented at the 2025 American Society of Clinical Oncology Annual Meeting and subsequently published in The New England Journal of Medicine. The recommendation will now be reviewed by the European Commission, which has the authority to grant marketing authorizations for medicines in the EU. In DESTI
SLB Announces Second-Quarter 2026 Results24.7.2026 13:50:00 EEST | Press release
SLB (NYSE: SLB) today announced results for the second-quarter 2026. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260722694386/en/ The exterior of the SLB headquarters in Houston, Texas. Second-Quarter Results(Stated in millions, except per share amounts)Three Months EndedChangeJun. 30, 2026Mar. 31, 2026Jun. 30, 2025SequentialYear-on-yearRevenue $8,972 $8,721 $8,546 3% 5% Income before taxes - GAAP basis $1,018 $956 $1,285 6% -21% Income before taxes margin - GAAP basis 11.3% 11.0% 15.0% 38 bps -369 bps Net income attributable to SLB - GAAP basis $786 $752 $1,014 5% -22% Diluted EPS - GAAP basis $0.52 $0.50 $0.74 4% -30% Adjusted EBITDA* $1,899 $1,773 $2,051 7% -7% Adjusted EBITDA margin* 21.2% 20.3% 24.0% 83 bps -284 bps Pretax segment operating income* $1,404 $1,321 $1,584 6% -11% Pretax segment operating margin* 15.6% 15.2% 18.5% 49 bps -289 bps Net income attributable to SLB, excluding charges & credits* $833 $783 $1,0
NIQ Expands GenAI Capabilities Across gfknewron, Turning Trusted Intelligence into Decisions Faster24.7.2026 13:30:00 EEST | Press release
NIQ (NYSE: NIQ), a leader in consumer intelligence, today announced the expansion of AI-powered Smart Insights across its gfknewron® platform. By bringing together markets and categories into a single view, gfknewron enables businesses to transform complex market, consumer and supply chain data into clear, actionable intelligence quickly. The latest enhancements help users identify trends, opportunities and performance drivers more quickly, reducing the time required to analyze large datasets and accelerating confident decision-making across teams. As brands and retailers face growing pressure to respond quickly to changing consumer behavior and market dynamics, the ability to unlock meaningful insights from increasingly rich datasets has become a significant competitive advantage. As AI is only as effective as the intelligence behind it, Smart Insights helps businesses realize the full value of NIQ's trusted market intelligence by automatically surfacing the trends, opportunities and
Thales to Strengthen Romania’s Airspace Protection With Twelve Ground Master 200 MM/A Radars24.7.2026 11:05:00 EEST | Press release
In a context of growing collaboration between European nations to bolster collective security, the Romanian General Directorate for Armaments has just signed a landmark agreement with France’s Direction Générale de l’Armement (DGA) to acquire twelve Thales Ground Master 200 Multi-Mission All-in-one (GM200 MM/A) radars. This government-to-government agreement, funded under the European Union’s SAFE programme, underlines the high level of partnership between France and Romania. The first delivery is expected in 2027. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260724603527/en/ The Romanian General Directorate for Armaments and the French Direction Générale de l’Armement (DGA – the French defence procurement agency) have signed an agreement to supply twelve Thales GM200 Multi-Mission All-in-one (GM200MM/A) radars to protect the Romanian airspace. The GM200 MM/A is a combat-proven medium-range 4D AESA radar, already deployed
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