Hy4 Preview now available on AI Gateway
Hy4 Preview, a 770B parameter open-source Mixture-of-Experts model from Tencent, is now available on Vercel's AI Gateway. The model supports 1M token context windows and is optimized for coding, document analysis, and scientific reasoning, accessible via the AI SDK with no platform fees.
is now available on AI Gateway.Hy4 Preview from Tencent
Hy4 Preview is an open-source 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. It serves a context window of 1M tokens.
To use Hy4 Preview, set to in the :modeltencent/hy4-previewAI SDK
To use it in a coding agent, see the , then run to connect agents like Claude Code, Codex, OpenCode, Cursor, Pi, and more and select inside the agent.coding agents guidevercel ai-gateway coding-agents setuptencent/hy4-preview
Try Hy4 Preview in the .model playground
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in , , , , and more.custom reportingZero Data Retention supportbudgets for API keysrouting rules
AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on (BYOK) requests.Bring Your Own Key
You can view available on AI Gateway.all language models
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