Introducing Grok on Amazon Bedrock

AWS Machine Learning · 9 hours ago

xAI's Grok 4.3 model is now available on Amazon Bedrock, accessible through OpenAI-compatible APIs and featuring a 1 million token context window for long documents. The model supports configurable reasoning effort levels, tool calling, structured output, image input, and multi-turn conversations, with xAI claiming it ranks first on multiple benchmarks including Artificial Analysis Omniscience and Tau2 Telecom. Users can access Grok 4.3 through region-specific Mantle endpoints using either long-term API keys or short-term bearer tokens generated from IAM credentials.