AWS Unveils Grok 4.3 and 20-Second ECS Scaling at New York Summit
Updated
Updated · AWS Blog · Jun 22
AWS Unveils Grok 4.3 and 20-Second ECS Scaling at New York Summit
3 articles · Updated · AWS Blog · Jun 22
Summary
AWS used its New York City Summit keynote to roll out a broad AI stack centered on “agentic” software, adding Grok 4.3 in Amazon Bedrock alongside new tools for work, coding, security and deployment.
Amazon Bedrock AgentCore gained general-availability infrastructure and orchestration features, web search, managed knowledge bases, guardrail policy integrations and an AWS Context service to map organizational data relationships.
AWS Continuum, also highlighted separately, packages AI-driven code vulnerability discovery, validation and remediation, while the AWS Security Agent adds threat modeling, pull-request scanning and IDE integrations.
Beyond AI software, AWS announced faster Amazon ECS auto scaling using 20-second metrics—cutting scale-out trigger time to 86 seconds from 363—and launched EC2 G7 instances with NVIDIA RTX PRO 4500 Blackwell GPUs.
The summit also bundled cost and marketplace updates, including S3 Vectors query-price cuts of up to 80% and an AWS Marketplace professional-services listing fee reduction to 0.5% from 2.5%.
How do we defend the AI that defends our code from AI-powered attacks?
As AI automates security, what is the new role for human experts?
Do new AI laws make AI-powered security tools a legal necessity for businesses?
AWS Continuum Launches: Automated, Model-Agnostic AI Security Redefines Cloud Defense in 2026
Overview
AWS unveiled AWS Continuum, an AI-native security service, at the AWS Summit New York on June 17, 2026, with immediate updates on their website to highlight its importance. This launch addresses the growing complexity of cybersecurity, where traditional human-centric responses are no longer enough against sophisticated, AI-driven threats. AWS Continuum is designed as a proactive and scalable solution, using artificial intelligence to provide stronger and more adaptive defense. Its debut marks a strategic shift for AWS, aiming to help organizations enhance their security posture and operational efficiency in a rapidly evolving threat landscape.