run_2026-09-21_nightly
Nightly · v3.4 · 2026-09-21
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 (424 items).
Pass rate
85.8%
Faithfulness
0.91
Answer correctness
0.88
Context precision
0.80
Context recall
0.83
Latency p95
3.7s
Failures by category
60 failed samples · largest share: unsupported
| Category | Share | vs reference |
|---|---|---|
| Unsupported claims | 26.7% | −1.4 pts |
| Incorrect factual answers | 21.7% | +0.6 pts |
| Missing context | 18.3% | −1.0 pts |
| Retrieval mismatch | 18.3% | +0.8 pts |
| Instruction-following failures | 11.7% | +1.1 pts |
| Other | 3.3% | −0.2 pts |
Run details
- Dataset
- support-golden-v4 v4.6 · 424 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 21, 02:00 UTC
- Duration
- 39m 46s
- Triggered by
- Scheduler
- Tokens / request
- 3,420 in · 214 out
- Compared with
- Nightly · v3.4 · 2026-09-20
- nightly
- golden-slice
All metrics
Against Nightly · v3.4 · 2026-09-20
| Metric | Group | This run | Reference | Change |
|---|---|---|---|---|
| Pass rateShare of samples the judge marked as passing all rubric checks. | Outcome | 85.8% | 86.4% | −0.6 pts |
| FaithfulnessShare of answer claims supported by the retrieved context. | Generation | 0.91 | 0.92 | −0.01 |
| Answer correctnessAgreement with the gold answer on facts, not style. | Generation | 0.88 | 0.89 | −0.01 |
| Instruction adherenceRespect for tone, format, length, language and policy constraints. | Generation | 0.94 | 0.93 | +0.01 |
| Context precisionRank-weighted precision of relevant chunks passed to the generator. | Retrieval | 0.80 | 0.79 | +0.01 |
| Context recallShare of gold-answer statements supported by the retrieved context. | Retrieval | 0.83 | 0.85 | −0.02 |
| Recall@5Share of gold passages found in the top 5 retrieved chunks. | Retrieval | 0.87 | 0.88 | −0.01 |
| MRRMean reciprocal rank of the first relevant chunk. | Retrieval | 0.73 | 0.74 | −0.01 |
| NDCG@10Graded ranking quality of the top 10, normalized by the ideal order. | Retrieval | 0.81 | 0.81 | 0.00 |
| 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 | 3.7s | 3.8s | −0.1s |
| Cost per requestModel, embedding and reranking cost per answered request (USD). | Operational | $0.0043 | $0.0041 | +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 | 85.8% | 0.91 | 0.83 | 0.87 | 3.7s | 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
14 samples with full traces (1 failing, 13 passing), stratified by domain. Open a row to inspect retrieval and the judge's reasoning.
Can I return my phone after 20 days if I don't like it? Returns & warranty FailIncorrectjudge 0.11 |
Can I return a phone I bought online if I opened the box? Returns & warranty Passjudge 0.96 |
My bill says 41,20 €. Is that forty-one euros or four thousand? Billing & payments Passjudge 0.97 |
My eSIM QR code says it has already been used. What should I do? eSIM & activation Passjudge 0.94 |
Is SIM swap protection turned on by default? Account & security Passjudge 0.95 |
If I upgrade my plan mid-month, how is my next bill calculated? Plans & upgrades Passjudge 0.93 |
How much data can I use in the EU on the Unlimited Plus plan? Roaming & travel Passjudge 0.92 |
Why was I charged twice for my September bill? Billing & payments Passjudge 0.88 |
My phone shows 4G but mobile data does not work after the iOS update. Device troubleshooting Passjudge 0.94 |
How do I get a copy of the personal data Harbor holds about me? Data privacy requests Passjudge 0.91 |