AWS AI League: Model customization and agentic showdown

Why it matters (2 min)

• Building intelligent agents to handle complex, real-world tasks can be daunting.
• Additionally, rather than relying solely on large, pre-trained foundation models, organizations often need to fine-tune and customize smaller, more specialized models to outperform them for their…
• Open receipts to verify and go deeper.

Go deeper (8 min)

Context

Building intelligent agents to handle complex, real-world tasks can be daunting. Additionally, rather than relying solely on large, pre-trained foundation models, organizations often need to fine-tune and customize smaller, more specialized models to outperform them for their specific use cases. The AWS AI League provides an innovative program to help enterprises overcome the challenges of building advanced AI capabilities through exciting competitions that drive innovation in agentic AI and model customization. In 2025, the first AWS AI League competition captured the attention of developers, data scientists, and business leaders globally. They came together to solve pressing problems using the latest AI tools and techniques. The grand finale at AWS re:Invent 2025 was an exciting showcase of their ingenuity and skills. Cross-functional teams from leading organizations competed head-to-head, demonstrating their ability to craft effective prompts, fine-tune models, and build powerful AI agents. Congratulations to our 2025 AWS AI League Champions! After intense competition among these three exceptional builders emerged victorious, sharing a $25,000 prize pool: 1st Place: Hemanth…

For builders

Builder: read docs/changelog; watch for breaking changes, quotas, and pricing.

Verify

Prefer primary announcements, papers, repos, and changelogs over reposts.

Receipts

1. AWS AI League: Model customization and agentic showdown (AWS Machine Learning Blog)