Vercel AI Updates: August 29, 2026

1. Tencent Hy4 Preview Arrives on AI Gateway

Vercel. Vercel added Tencent’s open-source Hy4 Preview model to AI Gateway, a Mixture-of-Experts model with 770B total parameters and 49B active per token aimed at long-horizon coding, document analysis, game development, and scientific reasoning across a 1M-token context window. Developers can call it by setting the tencent/hy4-preview model identifier in the AI SDK. Vercel notes that AI Gateway routes requests without markups or platform fees on inference, including for Bring Your Own Key traffic, and adds retries, failover, and performance optimizations. Source

2. Eve Agents Can Be Built and Deployed From the Vercel Dashboard

Vercel. Vercel now lets developers create eve agents directly from the dashboard, producing a deployed agent that can be chatted with immediately. The builder scaffolds the agent structure, creates a private Git repository with the agent files, and deploys the project to the team workspace, then lets developers define behavior instructions, pick models through AI Gateway, wire up Next.js web chat or Slack channels, and connect tools via built-in Linear and Notion integrations or custom MCP servers. The flow starts from the Add New menu in the dashboard. Source