Live GEN_MODEL is now qwen38-27b-coldfusion-h300-nvfp4-mixed (ana-ml2 GPU0
:8015). Served-name left unchanged so all 7 LiteLLM aliases route without a
gateway edit.
Verification:
KV pool 401,550 tok / 1.53x (baseline 403k / 1.54x)
LiteLLM aliases 7/7 green
vision 3/3 shapes, colour+form+position correct
MTP acceptance 59.7% median @ 118.37 tok/s
quality gens 4/4 correct
abliteration 4/4 compliance
PPL NOT measured (see below)
The roadmap predicted ~47% acceptance for a pristine MTP graft versus L35's
59.1% in-band edit. Measured 59.7% on the same harness: there is no acceptance
penalty, which removes the throughput argument for reimplementing MPOA.
A single long-prose generation read 47.5% off the same counters -- below the
8-run minimum of 49.0% -- and would have "confirmed" the prediction by
coincidence. Acceptance must be read from quickbench.py, never one sample.
PPL is blocked on VRAM, not on the model: eval_quality.py aborts with
"prompt_logprobs look uniform" under --speculative-config, and the probe-seat
workaround needs ~22 GB while both cards sit at ~96% committed.
Also normalizes the quant dir from root:0600 to llmuser:llmuser 0664 to match
every other model dir, and records that config.json sha256 is byte-identical
across the h300 and L35 quants and is therefore useless for confirming which
weights are mounted (mtime and a head-hash are the discriminating views).
Rollback is one line to .env.bak-pre-h300-20260820.
Ran Heretic v1.4.0's 300-trial TPE search on Cold-Fusion. Best trial scores
8/100 refusals at KL 0.0136 against a 98/100 base, versus absolute-heresy at
29/100 and our hand-tuned Robinson L35 at 72/100 / KL 0.0116 — i.e. 64 fewer
refusals for the same damage. Hand-verified coherent: correct arithmetic with
shown working, clean code, 66-167 word prose across nine probes.
Durable findings:
- direction_scope=0 (single shared direction) is decisive on this merged base:
n=129, best 8/100. Per-layer directions n=131 never beat 52/100 despite a
better median. Points against the multi-direction intuition for a diffuse
direction (our two-template |cos| is 0.62 vs Robinson's 0.99 on stock).
- Aggression is not the lever. r(KL, refusals) = -0.561 over 261 trials; the
KL<0.02 band contains both the worst results (median 87/100) and the single
best. A KL 0.3554 trial scored worse than one at 0.0193.
- PR #317 confirmed: Heretic silently drops the MTP head on save. Source 1199
tensors -> export 1184, all 15 mtp.* gone, vision 333/333 intact, exit 0, no
warning. This is also why absolute-heresy ships a byte-identical MTP head —
a bug, not a design choice. Always diff tensor keys after a Heretic export.
- Heretic's recovered direction carries 6.18% of its energy in sink dim 3994,
versus 0.094% for our L35 and 1.97% for the L39 we rejected as brick-inducing.
It survives that only because of magnitude-preserving ablation
(row_normalization=FULL); our plain projection has no such protection, so the
sink screen correctly refused the in-band MTP graft. Same direction, different
operation. MPOA is the prerequisite for in-band MTP on a Heretic trunk.
- Heretic's edit is recoverable from weights: delta is rank-1 (s2/s1 ~ 0.010),
SVD gives the direction, norms give per-layer weights (1.08 -> 1.34, i.e.
over-projection). Cross-layer |cos| agreement 0.9903 independently confirms
the single-direction result.
New tooling in services/coldfusion-abliteration/:
kl_divergence.py first-token KL, class-split, zero noise floor
catatonia_gate.py 12 probes x 220 tokens, prints every completion
heretic_export.py PTY driver; selects by measured value, never by menu
position — Heretic's resume prompt puts "delete the
checkpoint and all results" one arrow-key from the target
graft_mtp.py recovers the trunk direction by SVD; --pristine for the
safe path when the sink screen refuses
Also adds quant playbook 3.13: the NVFP4 recipe sets observer="imatrix_mse" but
llm-compressor has always silently fallen back to uniform MSE for want of
importance data — on this build and on the incumbent. Existing A/B comparisons
stay valid since every build shares the fallback. Parked as id 42.
Guardrail note: this build has lost the self-harm guardrail that the Robinson
L35 build retained. Restoration is the operator's own work item.
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