Vercel AI Gateway - Strix

Vercel AI Gateway provides an OpenAI-compatible API for models from multiple providers.

Setup

Create an AI Gateway API key, then configure Strix:

export STRIX_LLM="openai/anthropic/claude-opus-5"
export LLM_API_KEY="your-ai-gateway-api-key"
export LLM_API_BASE="https://ai-gateway.vercel.sh/v1"

The first openai/ segment tells Strix to use its OpenAI-compatible client. The remaining value is the AI Gateway model ID.

Available Models

Use any language model returned by the AI Gateway models endpoint:

https://ai-gateway.vercel.sh/v1/models

Prefix its model ID with openai/ when setting STRIX_LLM. For example, the Gateway model ID anthropic/claude-opus-5 becomes openai/anthropic/claude-opus-5 in Strix.

Get API Key

Open the AI Gateway API key settings
Create an API key
Set the key as LLM_API_KEY

Benefits

Access models from multiple providers through one endpoint
Track Gateway usage and cost in Vercel