Models changelog

Stay up to date with the latest updates and improvements to Kiro.

Dec 12, 2025

Models

Claude Opus 4.5 support for AWS IAM Identity Center users

We've added support for Claude Opus 4.5 to AWS IAM Identity Center users in both us-east-1 and eu-central-1 regions. Claude Opus 4.5 is available in both the Kiro IDE and Kiro CLI for Pro, Pro+, and Power tier subscribers.

Nov 24, 2025

Models

Claude Opus 4.5 support

Added support for Claude Opus 4.5 - Anthropic's most intelligent model combining maximum capability with practical performance. Ideal for complex specialized tasks, professional software engineering, and advanced agents. Claude Opus 4.5 is available in both the Kiro IDE and Kiro CLI for Pro, Pro+, and Power tier subscribers.