Vercel AI Updates: May 1, 2026

1. Grok 4.3 Lands on Vercel AI Gateway With 1M Token Context

Vercel. xAI’s Grok 4.3 is now routable through the Vercel AI Gateway, with a December 2025 knowledge cutoff and a 1M token context window. Vercel highlights gains in instruction adherence and accuracy over Grok 4. Developers can call it from the AI SDK by setting model to xai/grok-4.3, putting it on equal footing with the gateway’s existing OpenAI and Anthropic offerings for long-context agentic work. Source

2. AI SDK xAI Provider 4.0.0-beta.48 Renames Exports for Cross-Provider Consistency

Vercel. The xAI provider for the AI SDK pushed two beta releases on April 30. Beta 47 retags file part data structures and removes the standalone image part type, while beta 48 renames several exported symbols to align with patterns used across other provider packages. Deprecated aliases are kept in place so existing imports continue to compile, but consumers tracking the v4 betas should plan to migrate to the new names before the stable cut. Source