Grok 4.3 from xAI now available in Amazon Bedrock
News
This article announces the availability of xAI's Grok 4.3 model on Amazon Bedrock, expanding model provider options for generative AI applications.
- Grok 4.3 is a reasoning-first model with always-on, configurable reasoning effort levels
- Offers strong tool use and instruction-following for multi-step agent workflows
- Token-efficient for cost-effective high-volume inference
- Optimized for enterprise workloads like contract review and financial document analysis
- Runs on Mantle, a new inference engine supporting tool calling and structured output
- Available across multiple AWS regions
Grok 4.3 enables consistent, high-quality results for conversational AI, search, and multi-turn workflows on Amazon Bedrock.
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