There are several large enterprise AI providers that offer a variety of AI-based products and services. Some of the main providers include:

1. Amazon Web Services (AWS): AWS offers a wide range of AI services, including machine learning, natural language processing, and computer vision. It also offers a variety of tools and platforms for building, deploying, and managing AI models.
2. Google Cloud Platform (GCP): GCP provides a range of AI services, including machine learning, natural language processing, and computer vision. It also offers a number of tools and platforms for building and deploying AI models.
3. Microsoft Azure: Azure offers a variety of AI services, including machine learning, natural language processing, and computer vision. It also provides tools and platforms for building, deploying, and managing AI models.
4. IBM Watson: IBM offers a range of AI services and products under the Watson brand, including machine learning, natural language processing, and computer vision. It also provides tools and platforms for building and deploying AI models.
5. SAP Leonardo: SAP offers a range of AI services and products under the Leonardo brand, including machine learning, natural language processing, and computer vision. It also provides tools and platforms for building and deploying AI models.

When comparing these providers, it’s important to consider factors such as the types of services offered, the ease of use of the tools and platforms, the level of support and resources provided, and the pricing model. Each provider has its own strengths and weaknesses, and the best one for a particular enterprise will depend on the specific needs and requirements of that enterprise.