Grok 4.6 lands on Amazon Bedrock with a 500K context window
xAI's latest model is now generally available on AWS Bedrock: 500,000 tokens of context, four reasoning levels and cross-region inference.
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At a glance
- Generally available on Amazon Bedrock since 19 August 2026
- Context window: 500,000 tokens; four reasoning levels (low to xhigh)
- Pricing per xAI: $2/million input tokens, $6/million output tokens
- APIs: Responses, Chat Completions, Converse; logging to S3/CloudWatch
- Two inference profiles: US Geo (data residency) and Global (capacity)
What's new? Grok 4.6 has been generally available on Amazon Bedrock since 19 August 2026 — AWS lists the model as "SpaceXAI Grok 4.6". Companies can now use xAI's flagship directly inside their AWS environment without separate API contracts with xAI.
What can the model do? Grok 4.6 offers a context window of 500,000 tokens and four configurable reasoning levels (low, medium, high, xhigh). xAI positions it as a model "built for long-running agents and ambitious interactive and visual work".
What does it cost? xAI quotes 2 US dollars per million input tokens and 6 dollars per million output tokens. On Bedrock the model runs on the bedrock-runtime endpoint and supports the Responses, Chat Completions and Converse APIs.
How is availability organised? According to AWS, cross-region inference comes with two profiles: "US Geo" for data-residency requirements and "Global" for maximum capacity, plus invocation logging to S3/CloudWatch and cost itemisation in Cost Explorer.
Why does it matter? For European companies the Bedrock launch lowers the entry barrier considerably: governance, logging and billing run through existing AWS structures. The deal also shows how cloud marketplaces are becoming model vendors' most important sales channel — after Anthropic and Meta, AWS is now pulling xAI closer on board.
FAQ
What is Grok 4.6?
xAI's current frontier model with a 500,000-token context window and four reasoning levels, built for long-running agents and interactive work.
What does Grok 4.6 cost?
Per xAI: $2 per million input tokens and $6 per million output tokens.
What are the benefits of the Bedrock launch?
Companies use Grok 4.6 inside their AWS governance: cross-region inference, logging, monitoring and cost control without a separate xAI contract.
