Testing MiniMax-H3: Generates 42s Video on RTX Pro 6000 in 80 Minutes
vanonym_ · reddit · 2026-08-13
A developer pushed the video generation model MiniMax-H3 to its limits, attempting to bypass its native training cap of 324 frames (13.5 seconds) by forcefully generating a 1008-frame (42-second) video.
Test details and conclusions:
- Hardware & Time: Generating a 42-second video at 1376×768 resolution and 24fps took 82 minutes on a single RTX Pro 6000 GPU, with VRAM peaking at around 90GB.
- Quality: While the model demonstrated generalization beyond its training range, the extended video suffered from degraded quality, messy camera control, and a failure to strictly follow the prompt order.
- Author's Advice: This stretched generation method is highly impractical, heavily increasing processing time while sacrificing control. For actual creative work, generating shot by shot remains the recommended approach to ensure quality.
Related event: MiniMax H3 Video Generation: Tests and Creative Works(24 posts)→
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