Tencent HunyuanVideo

Separate every request into one of three contracts before taking action:

1. TokenHub hy-video-1.5 — current managed Tencent Cloud T2V/I2V interface for new integrations.
2. Legacy Tencent Cloud vclm API 3.0 — older TC3-signed SubmitHunyuanToVideoJob surface retained for existing customers while sales and model capabilities migrate to TokenHub.
3. HunyuanVideo-1.5 open weights — the official 8.3B local T2V/I2V repository, checkpoints, dependencies, infrastructure, and community license.

Do not infer that the managed model is byte-identical to a public checkpoint. Do not apply the open-weight license to cloud output, or Tencent Cloud terms to downloaded weights.

Gate execution first

Before a paid request, asset upload, model download, environment installation, or training job:

• State the surface, exact model/action or checkpoint family, region/territory, mode, input, target resolution/duration, audio plan, disclosure, estimated charge or infrastructure footprint, output paths, and QA gates.
• Require explicit approval. For hosted work require a monetary cap; for local work require approved disk/network/GPU scope and license acceptance.
• Default every supplied example to plan-only. Never silently enable postpaid billing, purchase credits/concurrency, download the roughly 372 GB current model repository, or contact a prompt-rewrite service.
• Persist provider request/job IDs or local revision hashes before long-running work. A submit timeout with no job ID is an unknown state; do not blindly resubmit because neither hosted surface documents an idempotency key.