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Fail with a message when MiniMax-H3 is run in img_gen mode #1863

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Fail with a message when MiniMax-H3 is run in img_gen mode #1863

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12 changes: 12 additions & 0 deletions src/stable-diffusion.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5584,6 +5584,18 @@ SD_API bool generate_image(sd_ctx_t* sd_ctx,
return false;
}

// MiniMax-H3 is video-only. Its denoiser always splits the packed latent into a video and an
// audio half, and only generate_video ever computes the audio length, so reaching this
// function with an H3 checkpoint is guaranteed to die on
// GGML_ASSERT(!audio_input_cache.empty()) with a core dump, after the several minutes it
// takes to load the weights, and with nothing in the output pointing at the missing --mode.
// (The AnimateDiff path below routes vid_gen back through here, but that is SD1.5 plus a
// motion module, never H3.)
if (sd_version_is_minimax_h3(sd_ctx->sd->version)) {
LOG_ERROR("MiniMax-H3 is a video model and cannot be run in img_gen mode; use --mode vid_gen");
return false;
}

sd_ctx->sd->reset_cancel_flag();

int64_t t0 = ggml_time_ms();
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