How to Upload Video to Grok xAI Chat Without Errors

Grok chat reportedly supports native MP4 and MOV video uploads for analysis, with MP4 encoded in H.264 presented as the most reliable option; common failures are attributed to oversized files, unsupported codecs, browser or app issues, and connection instability. The guide distinguishes consumer chat uploads, described as allowing files up to 150 MB, from the Files API, described as limited to 48 MB and oriented toward text-based or structured files rather than raw video, while positioning Grok Imagine as a separate tool for video generation and editing. Suggested workarounds include compressing or trimming clips, re-encoding them to H.264, extracting key frames or creating GIFs for image-based analysis, and supplying transcripts or metadata through the API. It also notes that direct YouTube links do not provide frame-level video analysis, advises neutral prompting to reduce moderation issues, and recommends reviewing privacy settings, removing sensitive information before uploading, and understanding how consumer, business, and shared-chat data may be retained or used.

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