{
  "id": 8980638,
  "title": "xAI’s Grok 4.6 is now available in Amazon Bedrock",
  "url": "https://urgent.news/2026/09/21/xais-grok-4-6-is-now-available-in-amazon-bedrock",
  "topic": "ai",
  "section": "AI",
  "published": "2026-09-21T18:30:34.000Z",
  "source": {
    "name": "AWS Machine Learning",
    "slug": "aws-machine-learning",
    "url": "https://aws.amazon.com/blogs/machine-learning/xais-grok-4-6-is-now-available-in-amazon-bedrock/"
  },
  "original_language": "en",
  "account": "xAI has made its Grok 4.6 model available on Amazon Bedrock, expanding the frontier model's capabilities for long-running agents, coding, and knowledge work. Grok 4.6 launched on Bedrock on August 18, 2026, and provides a 500K token context window, along with four reasoning effort levels: low, medium, high, and xhigh. This is xAI's second model in Amazon Bedrock.\n\nGrok 4.6 enhances the existing surface area by being available on both the bedrock-mantle and bedrock-runtime endpoints, supporting the Converse API alongside Chat Completions and Responses. The model is designed for complex tasks that span multiple steps, such as researching a topic, analyzing information, working across a codebase, or turning an idea into a polished application or work artifact.\n\nxAI trained Grok 4.6 using a longer supplemental training run, with a focus on reasonings and advanced technical concepts, high-quality engineering data, and improved optimizer and training recipe. The model was then trained on various agentic reinforcement learning tasks, including knowledge work, general coding, and domain-specific environments such as kernel optimization, web development, and computer-aided design.\n\nSeveral safety improvements have been made to Grok 4.6, including better safeguards that have been calibrated in line with the model's capabilities. The model has undergone a wide range of pre-deployment testing for capabilities and safeguard calibration, as well as post-deployment and third-party testing. This safety stack aims to maximize utility and security across legitimate use cases in areas like vulnerability patching, accelerating the engineering design cycle, and augmenting AI research.",
  "summary": "xAI's Grok 4.6 is now available in Amazon Bedrock: a frontier model for long-running agents, coding, and knowledge work, with a 500K token context window and four reasoning effort levels. It runs on both the bedrock-mantle and bedrock-runtime endpoints, with Converse API and cross-Region inference support.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 3,
    "also_reported_by": [
      {
        "outlet": "Dev.to",
        "title": "Building an Internal AI Assistant on AWS with Amazon Bedrock and Managed RAG",
        "url": "https://urgent.news/2026/09/21/building-an-internal-ai-assistant-on-aws-with-amazon-bedrock-and",
        "published": "2026-09-21T12:02:09.000Z"
      },
      {
        "outlet": "AWS Machine Learning",
        "title": "How Benchling secured multi-tenant AI agents with Amazon Bedrock AgentCore",
        "url": "https://urgent.news/2026/09/21/how-benchling-secured-multi-tenant-ai-agents-with-amazon-bedrock",
        "published": "2026-09-21T16:27:34.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}