Unverified50% confidenceFactExact time
A status code of 206 or transcript-unavailable indicates that the video has no subtitles in the requested language, and language codes should use the ISO 639-1 standard.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/12/2026
First Seen
Valid until: 1/10/2027
Sources
Related Entities
Related Claims
UnverifiedYouTube does not provide an official subtitle extraction API, and developers typically need to parse embedded data from video pages or use unofficial libraries such as youtube-transcript-api.64% similarUnverifiedPerplexity's video mode relies on YouTube's subtitle/transcript text for semantic segmentation and summarization, rather than genuinely performing multimodal understanding of video frames, so its coverage of videos without subtitles drops significantly.61% similarUnverified涉及具体代码实现、库版本和API调用的早期视频示例代码在今天可能无法直接运行60% similar
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