The embed alias was reverted to the previous backing model and re-benchmarked
over 3 runs. All gates pass and the numbers reproduce the original baseline
exactly: 768 dims, cosine margin 0.283 (quality 56) versus the 0.217 measured
on the swapped-in model, with throughput back to 109.7-123.3 vec/s.
The margin returning to the identical 0.283 confirms the locked semantic-pair
corpus is a reliable fingerprint for this endpoint, and a raw-vector probe
shows the two models are genuinely different spaces despite both being
unit-normalized 768-dim (max component diff 0.035 on the same input). Any
content embedded while the swapped-in model was live is therefore in an
incompatible space and needs re-embedding.
LLM-Generated: true
Second 3-run pass against the re-pointed embed endpoint the same day.
Dimension stays 768/768 and the cosine margin reproduces exactly at 0.217
across all passes, confirming both the model's determinism and that the
margin drop from the 0.283 baseline is a real effect of the model swap.
Throughput measured 59.1/61.4/57.4 vec/s against 35.5/35.6 earlier, a 1.7x
swing on an unchanged model, which shows the speed check measures one batched
request's end-to-end wall time (TLS setup, network, server queueing) rather
than stable throughput - note it gates on NaN/Inf only, never on rate.
LLM-Generated: true
The aipi `embed` endpoint was re-pointed to a new backing model and was
re-benchmarked over 3 runs. All three gates pass: output stays 768-dim
(matching BOR_EMBEDDING_DIM, so no schema/vector change is needed), the
similar-vs-dissimilar cosine margin is 0.217 (gate >= 0.05) with no NaN/Inf
vectors, and throughput is 35.6 vec/s on the 50-vector probe.
Versus the previous embed baseline (margin 0.283, 93.8 vec/s) the margin
tightens and throughput drops ~2.6x, both consistent with a model swap
behind the same alias. Vectors are unit-normalized and deterministic.
Note: same dimension on a different model means any KB indexed under the
old backing model holds stale vectors and needs a re-embed; the local dev
DB is empty, so the phase 119/162 retrieval battery was not runnable here.
LLM-Generated: true
New files:
- scripts/model_benchmark.py — shared CSV recorder for all model tests
- scripts/test_summary_model.py — summary model quality benchmark (coherence, coverage, brevity, hallucination)
- scripts/test_embed_model.py — embedding model benchmark (dimension, cosine accuracy, speed)
- .agents/skills/test-summary-model/SKILL.md — skill for testing summary models
- .agents/skills/test-embed-model/SKILL.md — skill for testing embedding models
- benchmarks/README.md — schema documentation
Updated:
- .agents/skills/test-chat-model/SKILL.md — now also records to CSV
All three scripts write to benchmarks/model_benchmarks.csv with one row
per run per check. The CSV accumulates results across runs for comparison.
ducoterra