You can now access xAI's latest models, Grok 4.1 Fast Reasoning and Grok 4.1 Fast Non-Reasoning, via Vercel's with no other provider accounts required. These models have a 2M context window and are designed for agentic tool calling.AI Gateway Grok 4.1 Fast Reasoning is best suited for structured reasoning and agentic operations that require high accuracy, whereas Grok 4.1 Fast Non-Reasoning is tailored to speed. To use the Grok 4.1 Fast models in AI Gateway with the , set to or .AI SDKmodelxai/grok-4.1-fast-reasoningxai/grok-4.1-fast-non-reasoning 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 , , and intelligent with automatic retries.observabilityBring Your Own Key supportprovider routing Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground Read more