run_2026-09-12_nightly
Nightly · v3.4 · 2026-09-12
Claude Sonnet 5.5 · bge-m3 · hybrid (BM25 + dense, RRF) · support-prompt v7 on support-golden-v4 v4.6
Stratified slice of support-golden-v4 (423 items).
Pass rate
87.0%
Faithfulness
0.90
Answer correctness
0.87
Context precision
0.79
Context recall
0.83
Latency p95
4.0s
Failures by category
55 failed samples · largest share: unsupported
| Category | Share | vs reference |
|---|---|---|
| Unsupported claims | 25.5% | +0.5 pts |
| Incorrect factual answers | 21.8% | +0.7 pts |
| Missing context | 18.2% | −1.0 pts |
| Retrieval mismatch | 18.2% | +0.9 pts |
| Instruction-following failures | 12.7% | −0.7 pts |
| Other | 3.6% | −0.2 pts |
Run details
- Dataset
- support-golden-v4 v4.6 · 423 items
- Generator
- Claude Sonnet 5.5
- Retriever
- bge-m3 · hybrid (BM25 + dense, RRF)
- Prompt
- support-prompt v7
- Judge
- LLM judge · Claude Opus 5.5 · rubric v3
- Started
- Sep 12, 02:00 UTC
- Duration
- 44m 5s
- Triggered by
- Scheduler
- Tokens / request
- 3,420 in · 214 out
- Compared with
- Nightly · v3.4 · 2026-09-11
- nightly
- golden-slice
All metrics
Against Nightly · v3.4 · 2026-09-11
| Metric | Group | This run | Reference | Change |
|---|---|---|---|---|
| Pass rateShare of samples the judge marked as passing all rubric checks. | Outcome | 87.0% | 87.3% | −0.3 pts |
| FaithfulnessShare of answer claims supported by the retrieved context. | Generation | 0.90 | 0.90 | 0.00 |
| Answer correctnessAgreement with the gold answer on facts, not style. | Generation | 0.87 | 0.88 | −0.01 |
| Instruction adherenceRespect for tone, format, length, language and policy constraints. | Generation | 0.93 | 0.94 | −0.01 |
| Context precisionRank-weighted precision of relevant chunks passed to the generator. | Retrieval | 0.79 | 0.79 | +0.01 |
| Context recallShare of gold-answer statements supported by the retrieved context. | Retrieval | 0.83 | 0.84 | −0.01 |
| Recall@5Share of gold passages found in the top 5 retrieved chunks. | Retrieval | 0.89 | 0.89 | 0.00 |
| MRRMean reciprocal rank of the first relevant chunk. | Retrieval | 0.75 | 0.74 | +0.01 |
| NDCG@10Graded ranking quality of the top 10, normalized by the ideal order. | Retrieval | 0.82 | 0.80 | +0.02 |
| Latency p50Median end-to-end time to final token. | Operational | 1.9s | 1.9s | 0.0s |
| Latency p9595th percentile end-to-end time to final token. | Operational | 4.0s | 3.8s | +0.2s |
| Cost per requestModel, embedding and reranking cost per answered request (USD). | Operational | $0.0041 | $0.0043 | −0.0002 |
Nightly trend
Nightly runs on the support-golden-v4 slice, Jul 11 to Oct 8. This run is one point in the series.
Across datasets
support-assistant v3.4 on every dataset in the project. Rows marked “matrix” come from the comparison matrix rather than a dedicated run.
| Dataset | Items | Pass rate | Faith. | Ctx recall | Recall@5 | p95 | Source |
|---|---|---|---|---|---|---|---|
| support-golden-v4this run | 1,240 | 87.0% | 0.90 | 0.83 | 0.89 | 4.0s | This run |
| billing-edge-cases | 312 | 81.7% | 0.87 | 0.82 | 0.86 | 4.0s | Run · Oct 2 |
| roaming-and-travel | 188 | 80.9% | 0.88 | 0.79 | 0.83 | 3.9s | Run · Sep 28 |
| device-troubleshooting | 426 | 84.5% | 0.89 | 0.83 | 0.87 | 4.5s | Run · Sep 30 |
| account-security | 154 | 88.3% | 0.92 | 0.85 | 0.89 | 3.7s | Run · Sep 25 |
| locale-formatting | 96 | 80.2% | 0.86 | 0.80 | 0.84 | 4.1s | Run · Oct 4 |
| synthetic-hard-negatives | 540 | 76.5% | 0.86 | 0.73 | 0.77 | 4.0s | matrix |
Traced samples
17 samples with full traces (4 failing, 13 passing), stratified by domain. Open a row to inspect retrieval and the judge's reasoning.
How long does it take to port my number to Harbor? Number porting Passjudge 0.93 |
Does the Fall 2026 upgrade offer work with a family plan discount? Promotions Passjudge 0.88 |
How long does it take to port my number from another operator? Number porting FailIncorrectjudge 0.15 |
Why was I charged twice this month? Billing & payments FailUnsupportedjudge 0.35 |
How much data can I use in Germany on Unlimited Plus before I get charged? Roaming & travel FailMismatchjudge 0.18 |
Can I get a refund for the roaming pack I didn't use? Roaming & travel FailUnsupportedjudge 0.04 |
What is the excess on a theft insurance claim? Returns & warranty Passjudge 0.86 |
Why was I charged twice for my September bill? Billing & payments Passjudge 0.94 |
If I upgrade my plan mid-month, how is my next bill calculated? Plans & upgrades Passjudge 0.86 |
How much data can I use in the EU on the Unlimited Plus plan? Roaming & travel Passjudge 0.97 |