Build long-horizon agents with Grok 4.7 on Amazon Bedrock

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Published: Oct 13, 2026, 3:52 PM UTC
Collected: Oct 13, 2026, 4:01 PM UTC

Grok 4.7 is now available on Amazon Bedrock. In this post, we build a tool-calling agent on Grok 4.7 and evaluate it on three reasoning tasks at four reasoning effort levels, measuring correctness and token cost per completed task. We show how to tune the trade-off per request and monitor it in production.

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SpaceXAI’s Grok 4.7 is now available on Amazon Bedrock, which offers a choice of foundation models (FMs) from multiple providers. According to SpaceXAI, Grok 4.7 is trained to work longer on more difficult tasks and knows when to check its own work. That matters most for agents, which carry a task through many steps and must verify what they find along the way. An agent that works this way has to do more than look things up. It has to form a candidate answer, check it against what it has…

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