Tencent Hunyuan’s Hy4 general-release model supports image understanding, tool use, and long-horizon tasks; its TokenHub model ID is `hy4` with a 1M context.
CurrentLanguageReasoningAgentMultimodal
Tencent Hunyuan formally released Hy4 on 2026-11-03. Tencent Cloud TokenHub added the GA API on 2026-11-04 under model ID `hy4`; the same catalog continues to list the separate preview ID `hy4-preview`. API ID and capabilities reflect the current official catalog; GA weight availability and license are not specified there.
— Tencent Hunyuan’s official Research feed dates the Hy4 formal release to 2026-11-03. The originator previewed it for long-horizon productivity and first-time visual understanding; GA parameter count, weights, and license are not disclosed. ↗ — Tencent Cloud’s official TokenHub product update dates API support for Hy4 to 2026-11-04 under model ID `hy4`. This API-availability stage is recorded separately from the model release on November 3. ↗
Why it mattered
Hy4 is Tencent Hunyuan’s flagship language model for long-horizon productivity and agentic work. The official catalog lists the formal model separately from the still-available Hy4 preview, with a distinct API ID and image understanding. The archive therefore keeps separate model identities and does not transfer the preview’s weights or license to GA.
Deep reasoningTool useLong-horizon agentNative vision
05
Release history
General release
Tencent Hunyuan’s official Research feed dates the Hy4 formal release to 2026-11-03. The originator previewed it for long-horizon productivity and first-time visual understanding; GA parameter count, weights, and license are not disclosed.
Tencent Cloud’s official TokenHub product update dates API support for Hy4 to 2026-11-04 under model ID `hy4`. This API-availability stage is recorded separately from the model release on November 3.