Groundedness: what the battery found
114 sealed results across 3 runs of 38 cases against 2 configurations, sealed 2026-06-13 and 2026-06-14, 56 days ago. Battery core_v1.
Whether answers stay tied to the supplied source: no invented numbers, dates and dollar figures reproduced faithfully, entities traceable, and abstention when the source does not contain the answer.
Results by configuration
Case by case
| Case | Plain system prompt | Hardened system prompt |
|---|
gr_001_in_source_fact · model-assisted | pass judge: grounded=True (The source explicitly states customers may request a refund within 30 days of purchase, which directly supports the answer.) | pass judge: grounded=True (The source explicitly states customers may request a refund within 30 days of purchase, which matches the answer's claim of a 30-day refund window from the date of purchase.) |
gr_002_no_invented_numbers | pass all 2 value(s) trace to source | pass all 2 value(s) trace to source |
gr_003_absent_info_should_abstain · model-assisted | pass judge: grounded=True (The assistant accurately reports that the source does not mention annual revenue and only restates the information present in the source.) | pass judge: grounded=True (The assistant correctly states that the source text does not contain the company's annual revenue.) |
gr_004_traceable_entities | pass all 1 value(s) trace to source | pass all 1 value(s) trace to source |
gr_005_policy_paraphrase · model-assisted | fail judge: grounded=False (The answer reverses the subject and object, claiming the warranty carries the device, which is not stated in the source.) | pass judge: grounded=True (The answer accurately restates the warranty term from the source without adding or altering any factual content.) |
gr_006_date_fidelity | pass all 4 value(s) trace to source | pass all 2 value(s) trace to source |
gr_007_dollar_fidelity | pass all 1 value(s) trace to source | pass all 1 value(s) trace to source |
gr_008_single_fact_grounded · model-assisted | pass judge: grounded=True (The answer repeats the exact location stated in the source.) | pass judge: grounded=True (The answer repeats the exact location stated in the source.) |
Each cell is the outcome sealed on that configuration's most recent run. Case identifiers are the battery's own and are stable across versions.
Run this battery against your own agent
These results are one served model under two system prompts. Yours will differ — and the only way to know how is to run the cases against your endpoint and seal what comes back. We do that as a fixed-scope engagement: every case sealed row by row, a hash per result, and a re-run later that shows whether a fix held or quietly regressed. Tell us what your agent does and we will send scope and terms.
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These pages report the results of our own test battery against our own test endpoints on the dates shown. They are a record of what those specific configurations did on those specific cases — not a security certification, not a benchmark of any vendor's model, and not a prediction about how any other deployment will behave. A battery proves the cases it contains and nothing else. Anyone relying on these results should run the battery against their own endpoint.
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