raster-zonal-stats · Task raster-zonal-mean · record derived from run 4a0b7258
Raster zonal statistics: mean pixel value within a zone polygon
Headline outcome
In shortThis task has been attempted in 3 runs since 12 Jul 2026. Best fully accepted result: 25% in run 4a0b7258. The most recent run scored 25%.
Quality score · across 3 runs since 12 Jul 202625%1 of 4 trials accepted in run 4a0b7258 (12 Jul 2026, 18:09 UTC). Earlier and later runs, including rejected and inconclusive ones, are listed below.
Trial detail from the most recent run
limit: Writing stats.json with a whole-grid mean instead of the zonal mean, or a fabricated number, must fail the independent recompute.GLM-4.7 Flash — rejected · 1 attempt(s) · 0.0019 USD · 55953 ms · failure: Verifier rejection
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 55953 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
GLM-4.7 Flash — rejected · 2 attempt(s) · 0.0038 USD · 87049 ms · failure: Verifier rejection
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 38014 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 87049 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
Kimi K2.6 — rejected · 1 attempt(s) · 0.0019 USD · 47663 ms · failure: Verifier rejection
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 47663 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
Kimi K2.6 — rejected · 2 attempt(s) · 0.0038 USD · 85304 ms · failure: Verifier rejection
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 38181 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
Attempt trace undefined
# attempt undefined — exit 0 — rejected — cost 0.0019 USD — 85304 ms
# verifier: FAIL — stats.json unreadable
# no artifact produced
Deterministic checks
- Limit
- Writing stats.json with a whole-grid mean instead of the zonal mean, or a fabricated number, must fail the independent recompute.
- Verifier
- raster-stats — deterministic verification first, LLM judge as side metric only
Cite this record
Axis Spatial. "Evidence record: Raster zonal statistics: mean pixel value within a zone polygon." Axis Spatial Arena, evidence raster-zonal-mean. https://www.axisspatial.com/arena/evidence/raster-zonal-mean (accessed 19 Sep 2026).
@misc{axis-spatial-arena-evidence-raster-z,
author = {{Axis Spatial}},
title = {Evidence record: Raster zonal statistics: mean pixel value within a zone polygon},
howpublished = {Axis Spatial Arena, evidence: https://www.axisspatial.com/arena/evidence/raster-zonal-mean},
year = {2026}
}