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HunyuanVL on live video streams

HunyuanVL · Tencent · VLM · Open + API

HunyuanVL is Tencent's open-weight vision-language flagship, built as a 389B-parameter mixture-of-experts model with 52B active per token. It targets strong bilingual Chinese-English understanding, with particular strength in OCR and visual grounding across dense documents, UI screenshots, and photographed text. HunyuanVL is not currently in Overshoot's live model catalog; the catalog changes over time, and GET /v1beta/models returns the current list. When a model like HunyuanVL is available through the API, the workflow is the standard one: publish a camera or screen share over WebRTC, reference a frame or segment with an ovs:// URL, and get answers back through a standard OpenAI-compatible chat-completions call.

HunyuanVL is not currently in the live Overshoot model catalog (verified against the live model catalog on 2026-07-14). Availability changes over time - query GET /v1beta/models for the current list.

Developer
Tencent
Parameters
389B MoE · 52B active
Context window
128K tokens
License
Tencent Hunyuan License
Released
Sep 2025
Inputs
Text, images, video frames
Overshoot availability
Not in live catalogas of 2026-07-14

What HunyuanVL is good at

HunyuanVL was trained at flagship scale with a heavy emphasis on OCR-heavy and document-dense visual inputs, which shows up in reliable text extraction from screenshots, forms, and photographed pages. Its bilingual training data gives it native fluency in both Chinese and English captions, labels, and instructions, which matters for interfaces and signage that mix scripts.

The 52B active parameters keep inference cost well below what a dense model of similar total size would need, while the 128K context window is enough to hold a long back-and-forth about a stream alongside several sampled frames. That combination makes HunyuanVL a practical choice for applications that need both visual grounding and sustained conversation.

  • Dense OCR and document layout understanding
  • Bilingual Chinese-English visual reasoning
  • Object and region grounding in cluttered scenes

HunyuanVL and the Overshoot workflow

HunyuanVL is not currently in Overshoot's live model catalog. When a model like this is available through the API, publishing works the standard way: a live camera or screen-share track goes out over WebRTC through Overshoot's LiveKit-based ingest, which opens a Stream and retains 600 seconds of rolling frame history. From there, a chat-completions request can reference the latest frame with frame_index: -1, an exact moment with timestamp_ms, or a short recent window sampled at 1 fps.

Requests use the same OpenAI-compatible chat-completions shape across every model Overshoot exposes, with responses streamed back over SSE for low time to first token. Passing a stable thread_id lets repeated questions against the same stream hit the prompt cache instead of reprocessing shared context. Check GET /v1beta/models to see which open-weight flagships are live right now.

HunyuanVL among open-weight vision flagships

HunyuanVL sits alongside other large Chinese open-weight releases like ERNIE 4.5 VL and Qwen3-VL 235B as a flagship-scale option with genuinely open weights rather than an API-only release. Teams choosing between them typically weigh HunyuanVL’s OCR and bilingual strengths against ERNIE’s thinking-mode chart reasoning or Qwen3-VL’s broader ecosystem support, rather than picking on raw parameter count alone.

Frequently asked questions

Can HunyuanVL analyze live video?

HunyuanVL was trained for OCR-heavy and grounded visual understanding, but it is not currently in Overshoot's live model catalog, so it cannot be queried against an Overshoot stream today. The catalog changes over time; check GET /v1beta/models for the current list.

Is HunyuanVL open source?

HunyuanVL ships under the Tencent Hunyuan License, which makes the weights downloadable and self-hostable under Tencent's terms. That open release is the kind of license platforms can serve directly, though HunyuanVL is not currently in Overshoot's live catalog.

Is HunyuanVL available on Overshoot?

Not currently. HunyuanVL is not in the live model catalog at the moment; the catalog changes over time, so check GET /v1beta/models. Its 52B active parameters would keep serving cost well below a dense model of similar total size on any hosting stack.

What is HunyuanVL best used for?

HunyuanVL is a strong fit for reading dense text out of live video, such as screenshots, signage, forms, or whiteboards, and for bilingual Chinese-English scenes. It also handles general visual question answering and object grounding well.

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