Benchmarking Grok 4.3 on Amazon Bedrock Mantle vs. the xAI API: The Engineering Walkthrough with Loka
Nina Cvetkovska, Bojan Jakimovski · July 10, 2026
The main post covers what we found: Grok 4.3 lands in the same 96–97% accuracy band on GSM8K whether you reach it through Amazon Bedrock Mantle or the first-party xAI API, and low reasoning effort captures most of the…