Vercel AI Updates: July 3, 2026

1. Vercel Adds Firewall-Style Routing Rules to AI Gateway

Vercel. Vercel introduced routing rules for its AI Gateway, giving teams firewall-style controls over which models can be accessed without requiring code changes when a model becomes unavailable. The feature offers Rewrite rules that transparently swap one model for another and Deny rules that block a model and return a 403 error. The rules apply instantly across all requests using team credentials while preserving existing configuration such as authentication and security settings. Source

2. AI SDK xAI Provider Adds Experimental Streaming Transcription

Vercel. Vercel shipped @ai-sdk/xai@4.0.6, which adds experimental streaming transcription support for transcription models, including OpenAI’s gpt-realtime-whisper and xAI WebSocket speech-to-text. The change enables real-time audio processing through WebSocket connections in the AI SDK, extending the provider beyond batch transcription. The patch also bumps internal provider dependencies including @ai-sdk/provider, @ai-sdk/provider-utils, and @ai-sdk/openai-compatible. Source