Define Together: Company Profile

Background

Company Overview

Define Together is a private American technology company specializing in providing cloud-based infrastructure, software, and tools for training, fine-tuning, deploying, and running generative artificial intelligence (AI) models. Founded in 2022 by Vipul Ved Prakash and a team of engineers and researchers from Stanford University, MIT, and the University of Chicago, the company is headquartered in San Francisco, California. Define Together operates in the AI infrastructure and cloud computing sector, serving developers, startups, and enterprises building generative AI applications.

Mission and Vision

Define Together's mission is to democratize access to AI by providing robust and scalable infrastructure tailored for modern generative AI workloads, particularly those based on open-source models. The company's vision is to empower organizations to develop, deploy, and scale AI applications efficiently, fostering innovation and accelerating the adoption of AI technologies across various industries.

Primary Area of Focus

The company's primary focus is on delivering cloud-based solutions that facilitate the training, fine-tuning, deployment, and operation of generative AI models. This includes offering GPU-based compute resources and supporting a range of open-source models across multiple modalities, such as text, image, audio, vision, and code.

Industry Significance

In the rapidly evolving AI landscape, Define Together plays a crucial role by providing the necessary infrastructure that enables organizations to harness the full potential of generative AI. By focusing on open-source models, the company contributes to the broader AI community, promoting transparency, collaboration, and accessibility in AI development.

Key Strategic Focus

Core Objectives

• Infrastructure Expansion: Enhance and scale cloud-based infrastructure to support large-scale AI workloads.

• Open-Source Advocacy: Promote the development and adoption of open-source AI models to foster innovation and collaboration.

• Global Reach: Extend services to a global clientele, catering to diverse industries and applications.

Specific Areas of Specialization

• Generative AI Workloads: Providing optimized solutions for training and deploying generative AI models.

• Open-Source Model Support: Facilitating the use and development of open-source AI models across various modalities.

• Cloud-Based AI Infrastructure: Offering scalable and efficient cloud infrastructure tailored for AI applications.

Key Technologies Utilized

• GPU-Based Compute Resources: Leveraging high-performance GPUs to accelerate AI model training and inference.

• Open-Source AI Frameworks: Supporting frameworks such as TensorFlow, PyTorch, and others to ensure flexibility and compatibility.

• Cloud Computing Platforms: Utilizing cloud services to provide scalable and reliable infrastructure solutions.

Primary Markets or Conditions Targeted

Define Together primarily targets organizations involved in AI research, development, and deployment, including:

• Startups: Emerging companies seeking efficient AI infrastructure solutions.

• Enterprises: Large organizations aiming to integrate AI into their operations.

• Academic Institutions: Universities and research labs conducting AI research and development.

Financials and Funding

Funding History

Since its inception, Define Together has secured substantial funding to support its growth and infrastructure development:

• Series A Funding (2023): Approximately $102.5 million led by Kleiner Perkins.

• Additional Funding (March 2024): An additional $106 million led by Salesforce Ventures.

• Series B Funding (February 2025): $305 million led by General Catalyst and co-led by Prosperity7 Ventures, valuing the company at approximately $3.3 billion.

Total Funds Raised

In total, Define Together has raised over $513 million in venture funding, supporting rapid infrastructure scaling and platform expansion.

Notable Investors

• Kleiner Perkins: Led the Series A funding round.

• Salesforce Ventures: Led the additional funding round in March 2024.

• General Catalyst: Led the Series B funding round in February 2025.

• Prosperity7 Ventures: Co-led the Series B funding round in February 2025.

Intended Utilization of Capital

The capital raised is intended to:

• Expand Compute Infrastructure: Increase GPU capacity to handle larger AI workloads.

• Develop Platform Capabilities: Enhance software tools and services for AI model training and deployment.

• Support Global Expansion: Establish data centers and operations in new geographic regions.

Pipeline Development

Key Pipeline Candidates

Define Together's pipeline focuses on:

• Infrastructure Expansion: Deploying additional data centers to support growing demand.

• Platform Enhancements: Developing new tools and services for AI model training, fine-tuning, and deployment.

• Open-Source Initiatives: Contributing to and supporting the development of open-source AI models and datasets.

Stages of Development

• Infrastructure Expansion: Ongoing deployment of additional data centers and GPU resources.

• Platform Enhancements: Continuous development and release of new features and tools for AI model development.

• Open-Source Initiatives: Active participation in open-source AI projects and communities.

Target Conditions

The company's initiatives aim to address:

• Scalability