DarthAffe/stable-diffusion.cpp
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fix: fail with a message when MiniMax-H3 is run in img_gen mode (#1863)

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Daniel Han 2026-08-11 08:22:20 -07:00 committed by GitHub
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commit 487de75c96
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src/stable-diffusion.cpp
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@ -5584,6 +5584,18 @@ SD_API bool generate_image(sd_ctx_t* sd_ctx,
return false; 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(); sd_ctx->sd->reset_cancel_flag();
int64_t t0 = ggml_time_ms(); int64_t t0 = ggml_time_ms();