Thursday, 20 August 2026 No. 4 Updated
THE VISSION
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Front page/ Models/ 20 Aug 2026
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Grok 4.6 reaches Amazon Bedrock with a 500K context window and tiered pricing

The model shipped on August 12; what is new is enterprise availability through AWS and a price that doubles once a prompt passes 200,000 tokens.

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The short version
  • xAI's Grok 4.6 is now available through Amazon Bedrock to developers in supported AWS regions, extending the model beyond xAI's own API.
  • The model carries a 500,000-token context window and configurable reasoning effort at low, medium, high and xhigh settings.
  • Pricing steps up with prompt length: $2 per million input tokens and $6 per million output below 200,000 input tokens, doubling to $4 and $12 at or above that threshold.

The model shipped on August 12; what is new is enterprise availability through AWS and a price that doubles once a prompt passes 200,000 tokens.

The story so far · Grok 4.6, from launch to leak
  1. 18 Aug 2026 xAI ships Grok 4.6, matching GPT-5.6 Sol on Artificial Analysis's intelligence index
  2. 20 Aug 2026 Grok 4.6 reaches Amazon Bedrock with a 500K context window and tiered pricing
  3. 21 Aug 2026 Encrypted instructions on a web page make Grok hand over a user's chat history
xAIGrokAmazon Bedrock