Unverified85% confidenceFactTime unknown
Grok生成的视频自带背景音乐和音效，这在免费AI视频生成工具中相当少见
1
Sources
85%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026
Sources
4款免费AI视频生成工具评测：Grok/豆包/即梦/Google AI Studio使用教程
bilibili大专教父mys
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