Grok 4.3 on AI Gateway
By Steven Van ·
Grok 4.3 brings a 1M token context window to AI Gateway and is used by setting the model to xai/grok-4.3 in the AI SDK.
xAI's Grok 4.3 is now available on Vercel's AI Gateway, with a 1M token context window and improvements in accuracy, tool calling, and instruction following. To use it, set the model to xai/grok-4.3 in the AI SDK.
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, observability, Bring Your Own Key support, and intelligent provider routing with automatic retries.
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