qwen-image and flux.2-dev (diffusion) and ltx-2 (video) now resolve a
hosted pre-cast fp8 text encoder from their unsloth -FP8 repos:
- unsloth/Qwen-Image-FP8: Qwen2.5-VL-7B, 16.6 GB dense -> 8.8 GB
- unsloth/FLUX.2-dev-FP8: Mistral-Small-24B, 48.0 GB dense -> 24.7 GB
- unsloth/LTX-2-FP8: Gemma3-12B, 48.7 GB fp32 store -> 13.2 GB
Every checkpoint verified bit-identical to dense-load-then-cast
(729 / 585 / 1066 tensors, zero mismatches) and smoke-tested through the
real backends with the repo engagement marker. Tests cover the wired
entries, the resolver filenames, builder metadata weights_only survival,
and the idempotent re-cast.
Hermetic CPU coverage for diffusion_te_prequant: the checkpoint
filename convention, family-table resolution by scheme and component
with malformed entries skipped, resolution priority (path override,
hosted repo, none) and the fp8-only scheme gate, the checkpoint
validation matrix (wrong format, missing state_dict, wrong scheme,
wrong component, wrong or missing base_model_id) with base case
folding, the local-path allowlist refusal and missing-file fallback,
and the assembly injection gating (mode, hosted entry, device support,
family deny, load failure, successful injection). Also pins the
te_prequant_repos field on both family dataclasses and that no family
ships a hosted TE checkpoint until the campaign wires one.
