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Build long-horizon agents with Grok 4.7 on Amazon Bedrock

AWS Machine Learning Blog · Oct 13, 2026 · Product Launches

Grok 4.7 lands on Amazon Bedrock with tunable reasoning effort for long-horizon agents

“At xhigh it answered all 18 correctly, and at low it answered 15 of 18 while using about an eighth of the output tokens.”

xAI's Grok 4.7 is now available on Amazon Bedrock, offering a configurable reasoning effort setting that lets developers trade accuracy for token cost on a per-request basis. AWS benchmarked it across 72 agentic runs on multi-step tasks, achieving 93% accuracy overall and 100% at the highest reasoning level. The tunable effort mechanism is a practical signal for how frontier labs are differentiating models for production agent workloads.

grok xai amazon-bedrock agents reasoning-effort long-horizon

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