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The video output quality is impressive, but without prompt guidance the audio produces nonsensical speech-like sounds.

The generated video was visually impressive, but the audio was unintelligible garbage due to the author not following the audio prompting guide. ✦ AI generated

article author · Simon Willison's Weblog · 2026-08-04 · original ↗

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The video is impressive, but the audio is weird speech-like garbage, because I didn't provide any prompt guidance as to what the audio should be.

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MiniMax-H3 is a general-purpose, omni-modal generative system that accepts text, images, audio and video inputs and can generate up to 15-second video clips with audio included.article author · Simon Willison's Weblog · conf 85%The models that existed for speech just produced robotic, unusable output, so we had to create new research from scratch.Mati Staniszewski · No Priors · conf 75%

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provides context → MiniMax provides a prompting guide with detailed information on how to achieve proper audio generation with the model.article author · Simon Willison's Weblog