Business Wire

Bioptimus Launches H-optimus-0, the World's Largest Open-Source AI Foundation Model for Pathology

Share

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

Tahoe Therapeutics Selects Parse Biosciences’ GigaLab to Generate 300 Million Single Cell Profiles for Large-Scale Perturbation Atlas11.12.2025 15:00:00 EET | Press release

Parse Biosciences, a leading provider of accessible and scalable single cell sequencing solutions, today announced that Tahoe Therapeutics has selected Parse’s GigaLab to generate data for its upcoming 300M cell project. Tahoe will use its proprietary Mosaic technology to generate samples consisting of 300M cells from large arrays of disease models, genetically or chemically perturbed. Under this agreement, Parse will apply its Evercode™ chemistry and high-throughput automation to these samples to deliver the largest perturbation-focused single cell dataset ever produced. Parse’s GigaLab, designed specifically for million- to hundred-million-cell projects, has rapidly become an industry benchmark for large-scale, reproducible single cell data generation. The facility integrates high-capacity liquid handling, standardized workflows, and end-to-end QC to enable dataset sizes previously unattainable for most research organizations. The Tahoe project represents one of the largest sequencin

Xsight Labs X2 Switch to Enable Next-Generation Starlink Satellites and Deliver Gigabit Connectivity11.12.2025 15:00:00 EET | Press release

Xsight Labs, an innovator in high-performance connectivity silicon, today announced that Starlink, the world’s most advanced satellite constellation in low-Earth orbit, delivering broadband, will leverage the Xsight X2 Programmable Ethernet switch to serve as the high-speed networking core for its next-generation Starlink V3 satellites. Each V3 Starlink satellite is designed to deliver more than 1 terabit per second (Tbps) of fronthaul throughput, more than 10× the capacity delivered by Starlink V2 Mini satellites, and about 160 gigabits per second (Gbps) of uplink capacity. Starlink’s global broadband service depends on processing and routing large volumes of real-time data, including inter-satellite optical link traffic, orbital mesh routing decisions, adaptive beam steering, and the high-throughput downlink required to serve its customers. The X2 delivers 12.8 Tbps of switching capacity using state-of-the-art 100G SerDes and TSMC’s N5 process, providing a power-efficient, ultra-low-

Payments Leaders Unprepared for 2026 Disruption, Warns ACI Worldwide11.12.2025 14:36:00 EET | Press release

Most global payments leaders lack a clear roadmap to navigate the seismic changes coming in 2026 , according to the latest Top Ten Payments Predictions from ACI Worldwide (NASDAQ: ACIW), an original innovator in global payments technology. With AI-driven intelligence, next-gen authentication, new regulatory frameworks, and soaring demand for instant, embedded, and secure payments, the industry is entering an era of structural disruption. However, ACI’s recent report Payments in Transition: Leadership in an era of transformation reveals that only 36% of payments executives have a clear long-term modernization roadmap, leaving many without a strategic vision for transformation. “In 2026, payments disruption won’t be incremental—it will be structural,” said Philip Bruno, Chief Strategy and Growth Officer at ACI Worldwide. “Real-time is now the baseline, digital assets are entering regulated ecosystems, and AI is transforming every layer of the value chain. Our research is a clear warning:

AB InBev and International Cricket Council Announce Landmark Global Partnership11.12.2025 11:31:00 EET | Press release

The International Cricket Council (ICC) announced AB InBev (Euronext: ABI) (NYSE: BUD) (MEXBOL: ANB) (JSE: ANH), the world’s leading brewer, will become the Official Beer Partner for all major ICC tournaments starting in 2026. The partnership will be led by Budweiser 0.0, Budweiser’s no-alcohol beer in India, with other ABI mega brands activating in Europe and Africa. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251211250826/en/ AB InBev and ICC announce global partnership From attending a match live in-stadium to watching one at a bar or pub with friends, with a lower alcohol-by-volume (ABV) and no-alcohol options like Budweiser 0.0, beer is the natural choice to enjoy responsibly. Through this partnership with the ICC, AB InBev will create more moments of cheers, choice and celebration for cricket fans of legal drinking age all over the world. ICC CEO, Sanjog Gupta said: "Cricket is one of the world’s most loved sports w

Spark Reply and Concept Reply Promote CO₂-optimised Charging Together With BMW11.12.2025 11:30:00 EET | Press release

Spark Reply, specialists in design and user experience, and Concept Reply, IoT and AI technology experts within the Reply Group, have developed a smart app for the BMW group as part of a research project that actively encourages electric vehicle drivers to adopt low-carbon charging habits. The “COOL” feature within the BMW Prototyping App “360° Mobility” analyses the current electricity mix and shows users in real time when it is at its cleanest. Playful interactions and personalised AI-generated images further motivate drivers to make more sustainable choices. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251211155452/en/ In a post pilot survey, 73 per cent of participants stated that they were willing to make an extra effort to charge with reduced CO₂ emissions, such as by setting a charging window in their app. This proves that 'COOL' can measurably reduce the carbon footprint of everyday electric driving. Electric mobil

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
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye