Video input

Attach an MP4, MOV, or WebM file by pasting, dropping, or selecting it in the desktop conversation composer. The attachment can show its name, duration, and size and play locally when the installed codecs support it.

The combined video size is limited to 20 MiB per send. Wuu sends bounded inline data; it does not transcode the clip, extract frames, upload chunks, or use a provider Files API for large videos. Whether the model understands the audio depends on that model.

Choose a compatible model and connection

Video input needs both model support and a compatible request format. A successful login, an image-capable model, or a video-generation feature is not enough.

Connection	Wuu’s current admission rule
OpenRouter Chat	Accepts a model catalog entry declaring video input and sends video_url
DashScope / Model Studio Chat	Uses the same video format when the model declares support
Custom Chat-compatible service	Can explicitly declare options.video_input: "video_url"
OpenAI Responses, including Codex login reuse	Rejects new video input
SuperGrok OAuth, Grok Build, Anthropic Messages	Video input is disabled in the adapters
Direct Gemini compatibility endpoint	Not enabled automatically; Wuu does not integrate the native Gemini video API

An unsupported new attachment produces an error asking for a compatible model and connection. Switching to an unsupported model later keeps old attachments in history but represents them as unreadable video in that request’s context.

Declare support for a custom model

Add these fields to the model entry in an existing provider configuration, using the actual model ID:

{
  "models": {
    "your-model-id": {
      "modalities": { "input": ["text", "image", "video"], "output": ["text"] },
      "options": { "video_input": "video_url" }
    }
  }
}

The endpoint must actually accept inline video_url content through Chat. video_input is a Wuu admission option and is removed from provider request options. It cannot override a model that explicitly denies video capability or enable video in an adapter that disables it.

If a clip fails

Check the total size, file format, selected model, and connection protocol first. Local playback and admission checks do not prove that a provider can analyze the clip. Your account and downstream route can impose additional duration, format, and access limits. Test with a short, non-sensitive clip before relying on the result.