Benchmarked selene against gen on selene's own job: 24 designed judge items
with checkable ground truth, pairwise + absolute modes, 3 repeats, on BOTH a
neutral JSON prompt and Selene's native Atla template. 288 calls, all free
local.
neutral JSON selene 20/24 (83%) gen 23/24 (96%)
native Atla selene 21/24 (88%) gen 22/24 (92%)
gen won on both templates and selene's BEST sat below gen's WORST. Selene was
given its own fine-tuned template as a fairness check; it gained one point,
not the three it needed.
Decisive defect: selene cannot emit "tie" -- 0/2 on both templates, forcing a
winner on every equivalent pair. For eval work that is the case that matters
most. gen returned tie correctly on the JSON template. Selene also compressed
the 1-5 scale (clustered at 2s and 4s) where gen used it fully. Selene's only
win was ~3x latency, unexercised at ~60 calls/day with zero queueing.
TWO NAMES, TWO DIFFERENT TREATMENTS, deliberately:
- chat-judge -> repointed to gen. It is a ROLE alias and ADR-0012 says
consumers bind the capability, not a concrete model. Sampler profile copied
from image-judge (temp 0, top_p 1.0, top_k 1, thinking off) so the served
config matches the benchmarked condition.
- selene-1-mini-8b -> REMOVED. It 404s. It was NOT aliased to gen. A
served-name is a contract about what the model IS; answering it with a
different model hides a material change behind a stable string. Operator
ruling: "never repoint a named model at a different model's endpoint --
that is intentionally misleading." Verified: the gateway now returns
HTTP 400 "Invalid model name" for it.
Reclaimed 17.2 GiB on ana-ml2 GPU 1 (free 1,818 -> 19,450 MiB) on a card that
had under 2 GiB of headroom. gen already runs on GPU 0, so the judge role
moved onto an existing seat rather than allocating anything new.
Canonical litellm config synced from the host; ana-ml2 README and
recommended-model-settings updated. compose.yaml kept for reference, not
deployed.
vh
ca3c984f93