SpaceXAI Grok 4.6 Now Available on Amazon Bedrock in AWS GovCloud (US)
AWS, Friday, August 28th, 2026
Grok 4.6, with a 500k context window and configurable reasoning effort, is now available on Bedrock in GovCloud.
Amazon Bedrock in AWS GovCloud (US) now supports SpaceXAI Grok 4.6, a frontier model built for coding, agentic tasks and knowledge work. Grok 4.6 is SpaceXAI's latest flagship model, designed for long-running agents and demanding interactive and visual work, offering a 500k context window and configurable reasoning effort levels of low, medium, high and xhigh.
The model runs on the bedrock-runtime endpoint with support for the Responses, Chat Completions and Converse APIs. Customers can access it at scale using cross-Region inference that routes requests across both AWS GovCloud (US) Regions, and it is also available via the bedrock-mantle endpoint in AWS GovCloud (US-East).