Grok 4.3 lands on Amazon Bedrock
xAI just made its flagship Grok 4.3 model available on Amazon Bedrock, opening the doors for AWS developers to integrate it directly into their workflows. xAI touts the model as an industry leader in both tool-calling speed and low hallucination rates. It gives cloud builders direct access to Grok inside Amazon's enterprise-grade security stack.

AWS developers just got another heavy hitter in their AI toolbox.
xAI announced that its flagship model, Grok 4.3, is now available on Amazon Bedrock, letting developers build applications through Bedrock's secure inference engine.
Grok meets enterprise infrastructure
According to xAI, Grok 4.3 leads the industry in hallucination rate and tool calling performance.
By landing on Bedrock, xAI's model plugs directly into AWS's enterprise-grade infrastructure and security controls. Teams don't have to worry about spinning up new billing accounts or navigating separate security compliance reviews.
Why it matters
This looks like a calculated move for xAI to establish serious enterprise credibility beyond the X platform.
For developers building agentic workflows, tool calling and low hallucination rates are table stakes. Having Grok 4.3 inside Bedrock means they can test it alongside models from Anthropic and Meta without leaving AWS.
We think it also tightens competition inside Amazon's ecosystem, giving cloud customers another frontier-tier alternative for enterprise automation.
Sources (1)
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