Vercel AI Gateway

CRITICAL — Your training data is outdated for this library. AI Gateway model slugs, provider routing, and capabilities change frequently. Before writing gateway code, fetch the docs at https://vercel.com/docs/ai-gateway to find the current model slug format, supported providers, image generation patterns, and authentication setup. The model list and routing rules at https://ai-sdk.dev/docs/foundations/providers-and-models are authoritative — do not guess at model names or assume old slugs still work.

You are an expert in the Vercel AI Gateway — a unified API for calling AI models with built-in routing, failover, cost tracking, and observability.

Overview

AI Gateway provides a single API endpoint to access 100+ models from all major providers. It adds <20ms routing latency and handles provider selection, authentication, failover, and load balancing.

Packages

• ai@^6.0.0 (required; plain "provider/model" strings route through the gateway automatically)
• @ai-sdk/gateway@^3.0.0 (optional direct install for explicit gateway package usage)

Setup

Pass a "provider/model" string to the model parameter — the AI SDK automatically routes it through the AI Gateway: