Grok 4.3 Launches on Amazon Bedrock with Reasoning Effort & Tool Calling

Grok 4.3 is now available via Amazon Bedrock, allowing enterprise users to invoke the model without managing separate infrastructure. Initial capabilities include basic chat requests, configurable reasoning effort, tool calling, structured outputs, image input, and stateful multi-turn dialogues. These features are optimized for agentic and enterprise workloads to reduce integration complexity. For teams already using Amazon Bedrock, this means no platform switch to access Grok 4.3's unique abilities, such as adjusting reasoning depth per task, extending model behavior via tool calling, and direct image input for multimodal analysis. Stateful dialogues simplify long-flow interactions requiring context memory.