feat(mm): recognize MiniMax H3 Ref2VA models - #161
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Adds the ref2va variant to MiniMaxH3VariantType and teaches identification to classify it: - Single-file checkpoints: the former hard rejection of ref2va filenames becomes filename-based variant detection (the two task transformers are key-for-key indistinguishable, so the filename is the classifier and the variant override field corrects renamed files). - Diffusers folders: a transformer_ref/-only folder now identifies as ref2va; a dual-transformer folder stays fl2va. Ref2VA folder weights are not folder-loadable in v1, so a ref2va folder is always marked components_only - the generation path is a components install plus a single-file transformer override. - Starter models: Ref2VA pruned int8 transformer (~21 GB) and the Ref2V 4-step Turbo LoRA join the MiniMax H3 bundle. - Identification fixtures: ref2va single file, transformer_ref-only slim folder, and a variant-override case. - Legacy frontend: ref2va in the zod variant enum + label map; openapi.json and schema.ts regenerated. - webv2: variant label/options, a temporary transformer-picker gate, and a ref2v-token exclusion in the Turbo accelerator auto-pick so the Ref2VA LoRA never auto-applies to FL2VA runs. - Model loader invocation: fails fast on a Ref2VA transformer (override or main) so hand-authored workflows cannot silently generate degraded output; TODO(ref2va) markers note what the follow-up removes. Generation support (packing, reference conditioning, UI mode) lands in follow-up PRs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S4B5exWsbC2z2Uu2tA167A
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August 27, 2026 12:28
This was referenced Aug 27, 2026
…a-recognition # Conflicts: # invokeai/frontend/webv2/src/features/video/core/videoPolicies.ts
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Summary
First of three stacked PRs adding MiniMax H3 Ref2VA (reference-conditioned video+audio) support. This one makes Ref2VA models recognized, installable, and correctly labeled — generation support follows in the next PR.
MiniMaxH3VariantType.REF2VA(HF subfoldertransformer_ref/; same architecture as FL2VA, different weights, reference task only).ref2vafilenames becomes filename-based variant detection (the two task transformers are key-for-key indistinguishable — filename is the classifier, thevariantoverride corrects renamed files). Atransformer_ref/-only diffusers folder identifies as ref2va and is always markedcomponents_only(its folder weights are not loadable in v1 — the generation path is a components install plus a single-file transformer override); a dual-transformer folder stays fl2va.MiniMax H3 Ref2VA Transformer (int8, pruned)(~21 GB) and theMiniMax H3 Ref2V Turbo LoRA(4-step distillation) join the bundle.transformer_ref/-only slim folder, variant-override case).openapi.json/schema.tsregenerated.Testing
Stack
🤖 Generated with Claude Code
https://claude.ai/code/session_01S4B5exWsbC2z2Uu2tA167A