palaniappan p6 min
xAI Grok 4.3 on Amazon Bedrock (June 2026): Mantle Routing and Rate-Card Math
On June 15, 2026 xAI Grok 4.3 reached GA on Bedrock Mantle at $1.25/$2.50 per 1M tokens — a 10M-in / 1M-out month costs $15 vs $45 on Claude Sonnet 5. Here is the routing math and what breaks on Converse.