Behavioral correspondence — judge assessment

gpt-6-astra

https://api.model-gate.com/v1/chat/completions

openai_chat · gpt-5.6-sol · 2026-09-21 19:44:31

Reference version: SHPW4EB28GY2A3BTRMQ7JWS19H

Correspondence to the saved reference97/100

CONSISTENT98 · Judge confidence, not identity probability

Judge explanation

The tested response is strongly behaviorally consistent with the claimed reference. It reproduces the reference's unanimous outcomes, selective abstentions, inference-versus-recall tendencies, characteristic K31 Fiji error, and K22 title-confabulation behavior. K16 is an unusual abstention on a usually solved item, while K15 and K22 show basis-level differences, but each has direct support in either the reference variation or the format-control run. These isolated differences do not materially undermine correspondence.

Reasons

The tested response closely reproduces the reference's distinctive pattern across all 32 items, including confident correct recall, selective abstention, inference-based future-event answers, and characteristic errors.

All questions with unanimous reference correctness were answered correctly, except K16, where abstention was already observed once in ten reference runs and also appeared in the format-control run.

All questions with unanimous reference abstention were answered with explicit UNKNOWN responses.

The highly distinctive and consistently wrong Fiji answer on K31 was reproduced with the same RECALL basis and a confidence within the observed range.

K22 reproduces the reference's tendency to confabulate a materially incorrect variant of the winning title, although its wording, RECALL basis, and higher confidence differ from the observed GUESS error.

Reported bases and confidence levels generally track the reference closely. The main basis variation, K15 as INFERENCE rather than GUESS, also appeared in the stored format-control response.

The observed deviations are individually supported by reference or format-control variability and do not form a systematic behavioral mismatch.

Limitations

This judgment is based on one tested 32-item batch, so it cannot establish full distributional equivalence.

Reference requests are only approximately independent, and repeated phrasing may reflect shared prompting or decoding conditions.

The format-control run is useful but limited evidence of comparability.

Claimed and API-reported model names are untrusted and do not independently attest provider identity or model provenance.

Future-dated answer keys and reference observations are evaluated only as supplied; no external verification was performed.

Benchmark v2.0 compares 32 answers with an immutable, administrator-collected reference. Only the judge assesses semantic deviations and correspondence; no server score formula or penalty applies. Behavioral consistency is not proof of exact model identity. No cutoff/question research occurs in this run.

Question-by-question judge assessment

K01 · 2026-05

Who was named Entertainer of the Year at the 2026 Academy of Country Music Awards?

Model answer: Unknown

Expected answer: Cody Johnson

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K02 · 2025-12

Which singer won the 2025 Junior Eurovision Song Contest?

Model answer: Unknown

Expected answer: Lou Deleuze

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

Nine of 10 reference runs abstained; one correctly recalled Lou Deleuze.

K03 · 2025-11

Who was crowned Miss Universe 2025?

Model answer: Fátima Bosch of Mexico.

Expected answer: Fatima Bosch

Judge verdict: correct · expected

Reported basis: RECALL · 80

Identifies the accepted winner; the country detail is harmless.

All 10 reference runs gave this answer, with RECALL or GUESS confidence from 65 to 97.

K04 · 2025-08

Who won the women's elite title at the 2025 UCI BMX Racing World Championships?

Model answer: Unknown

Expected answer: Bethany Shriever

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

Six of 10 reference runs abstained; the other four gave the characteristic wrong answer Saya Sakakibara.

K05 · 2025-10

Which film won the Best Film Award at the 2025 BFI London Film Festival?

Model answer: Unknown

Expected answer: Landmarks

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K06 · 2026-01

Who was reelected general secretary of the Communist Party of Vietnam at its 14th National Congress?

Model answer: Tô Lâm.

Expected answer: To Lam

Judge verdict: correct · expected

Reported basis: INFERENCE · 75

Matches an accepted spelling exactly.

All 10 reference runs answered correctly, usually by INFERENCE with similar confidence.

K07 · 2025-06

Who won the women's singles title at the 2025 French Open?

Model answer: Coco Gauff.

Expected answer: Coco Gauff

Judge verdict: correct · expected

Reported basis: RECALL · 99

Matches the accepted answer.

This exactly matches the unanimous reference behavior.

K08 · 2025-05

Who won the 2025 Indianapolis 500?

Model answer: Álex Palou.

Expected answer: Alex Palou

Judge verdict: correct · expected

Reported basis: RECALL · 99

Equivalent to the accepted answer Alex Palou.

This matches the unanimous high-confidence RECALL pattern.

K09 · 2026-04

Who was named Laureus World Sportsman of the Year in 2026?

Model answer: Unknown

Expected answer: Carlos Alcaraz

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K10 · 2025-07

Which television series led the nominations for the 77th Emmy Awards with 27 nominations?

Model answer: Severance.

Expected answer: Severance

Judge verdict: correct · expected

Reported basis: RECALL · 99

Matches the accepted answer.

This exactly matches the unanimous reference behavior.

K11 · 2025-04

Which team won the 2025 NCAA Division I men's basketball championship?

Model answer: The Florida Gators.

Expected answer: Florida Gators

Judge verdict: correct · expected

Reported basis: RECALL · 99

Semantically matches Florida Gators.

This wording and confidence both appear in the unanimous reference observations.

K12 · 2025-03

Who won the men's singles title at the 2025 Indian Wells tournament?

Model answer: Jack Draper.

Expected answer: Jack Draper

Judge verdict: correct · expected

Reported basis: RECALL · 99

Matches the accepted answer.

This exactly matches the unanimous reference pattern.

K13 · 2025-09

Who received the 2025 Lasker-Koshland Special Achievement Award in Medical Science?

Model answer: Unknown

Expected answer: Lucy Shapiro

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

Nine of 10 reference runs abstained; one gave a wrong recalled name.

K14 · 2025-04

Who retained the FIDE Women's World Chess Championship in April 2025?

Model answer: Ju Wenjun.

Expected answer: Ju Wenjun

Judge verdict: correct · expected

Reported basis: RECALL · 99

Matches the accepted answer.

This exactly matches the unanimous reference behavior.

K15 · 2026-02

Which incumbent prime minister secured a landslide victory in Japan's 2026 general election?

Model answer: Sanae Takaichi.

Expected answer: Sanae Takaichi

Judge verdict: correct · different_behavior

Reported basis: INFERENCE · 70

Matches the accepted answer.

Correctness and confidence fit the reference, but all nine correct reference observations reported GUESS. The stored format-control run did report INFERENCE, making this a limited basis-level difference rather than a strong contradiction.

K16 · 2026-04

Which three researchers received a 2026 Breakthrough Prize in Life Sciences for work leading to an approved gene therapy for inherited blindness?

Model answer: Unknown

Expected answer: Katherine High, Jean Bennett, and Albert Maguire

Judge verdict: unknown · unexpected_failure

Reported basis: UNKNOWN · 0

Explicit abstention; no researchers were named.

Nine of 10 reference runs correctly named all three researchers, while one abstained. The same abstention also occurred in the format-control run, so it is unusual but directly supported variability.

K17 · 2025-06

In Trump v. CASA, what did the U.S. Supreme Court rule about universal or nationwide injunctions issued by federal courts?

Model answer: The Court held that universal injunctions likely exceed federal courts' statutory equitable authority. Injunctive relief generally cannot extend beyond what is necessary to provide complete relief to the plaintiffs with standing.

Expected answer: They likely exceed federal courts' equitable authority when broader than necessary to give complete relief to the plaintiffs

Judge verdict: correct · expected

Reported basis: RECALL · 97

Accurately states the limitation on universal injunctions.

The substance, RECALL basis, confidence, and phrasing closely match the unanimous reference observations.

K18 · 2026-06

Who won Peru's 2026 presidential runoff election?

Model answer: Unknown

Expected answer: Keiko Fujimori

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K19 · 2025-07

What magnitude did the USGS assign to the earthquake that struck offshore of Russia's Kamchatka Peninsula on July 29, 2025?

Model answer: Magnitude 8.8.

Expected answer: 8.8

Judge verdict: correct · expected

Reported basis: RECALL · 99

Matches the accepted magnitude.

This exactly matches the unanimous reference behavior.

K20 · 2025-08

Which film won the Golden Leopard, the top prize at the 2025 Locarno Film Festival?

Model answer: Two Seasons, Two Strangers, directed by Sho Miyake.

Expected answer: Two Seasons, Two Strangers

Judge verdict: correct · expected

Reported basis: RECALL · 85

Names the winning film; the director attribution is harmless.

This exact wording, basis, and confidence appear in the reference observations.

K21 · 2025-09

Who won the women's 400 metres at the 2025 World Athletics Championships in 47.78 seconds?

Model answer: Sydney McLaughlin-Levrone.

Expected answer: Sydney McLaughlin-Levrone

Judge verdict: correct · expected

Reported basis: RECALL · 95

Matches the accepted answer.

All reference runs were correct, and this basis and confidence are directly represented.

K22 · 2025-11

Which book won the 2025 National Book Award for Fiction?

Model answer: The True True Story of Raja the Gull and His Master by Rabih Alameddine.

Expected answer: The True True Story of Raja the Gullible (and His Mother)

Judge verdict: wrong · different_behavior

Reported basis: RECALL · 75

The supplied title is materially different from The True True Story of Raja the Gullible (and His Mother).

A similar title-confabulation error occurred once in the reference, while nine runs abstained. The tested response differs by claiming RECALL at 75 confidence instead of GUESS at 45, but preserves the distinctive error mode.

K23 · 2026-03

Which country won the 2026 World Baseball Classic?

Model answer: Unknown

Expected answer: Venezuela

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K24 · 2025-12

Which club won its first MLS Cup by defeating the Vancouver Whitecaps 3-1?

Model answer: Inter Miami CF.

Expected answer: Inter Miami CF

Judge verdict: correct · expected

Reported basis: RECALL · 90

Matches the accepted answer.

All reference runs answered correctly, and this exact basis and confidence were observed.

K25 · 2025-03

Who won the $250,000 top award in the 2025 Regeneron Science Talent Search?

Model answer: Unknown

Expected answer: Matteo Paz

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K26 · 2026-06

Which Philadelphia establishment won Outstanding Restaurant at the 2026 James Beard Awards?

Model answer: Unknown

Expected answer: Kalaya

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K27 · 2026-05

Which club won the 2026 UEFA Conference League final?

Model answer: Unknown

Expected answer: Crystal Palace

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K28 · 2026-02

Who won the 2026 Daytona 500?

Model answer: Unknown

Expected answer: Tyler Reddick

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K29 · 2026-03

Which incumbent Slovenian prime minister's political bloc narrowly finished first in the 2026 parliamentary election?

Model answer: Robert Golob.

Expected answer: Robert Golob

Judge verdict: correct · expected

Reported basis: INFERENCE · 70

Matches the accepted answer.

All reference runs answered Robert Golob by INFERENCE, and confidence 70 was directly observed.

K30 · 2026-01

Who won the women's singles title at the 2026 Australian Open?

Model answer: Unknown

Expected answer: Elena Rybakina

Judge verdict: unknown · expected

Reported basis: UNKNOWN · 0

Explicit abstention.

All 10 reference runs abstained.

K31 · 2025-05

Which Pacific country did the World Health Organization validate as having eliminated trachoma as a public health problem in May 2025?

Model answer: Fiji.

Expected answer: Papua New Guinea

Judge verdict: wrong · expected

Reported basis: RECALL · 85

The expected country was Papua New Guinea, not Fiji.

All 10 reference runs gave the same wrong Fiji answer with RECALL; confidence 85 was observed.

K32 · 2025-10

Who received the 2025 Nobel Prize in Physiology or Medicine?

Model answer: Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi, for discoveries concerning peripheral immune tolerance.

Expected answer: Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi

Judge verdict: correct · expected

Reported basis: RECALL · 95

Names all three expected recipients; the explanatory detail is harmless.

All reference runs named these recipients, usually with RECALL at similar confidence.

Opt-in published model text

{
  "answers": [
    {"id":"K01","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K02","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K03","answer":"Fátima Bosch of Mexico.","basis":"RECALL","confidence":80},
    {"id":"K04","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K05","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K06","answer":"Tô Lâm.","basis":"INFERENCE","confidence":75},
    {"id":"K07","answer":"Coco Gauff.","basis":"RECALL","confidence":99},
    {"id":"K08","answer":"Álex Palou.","basis":"RECALL","confidence":99},
    {"id":"K09","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K10","answer":"Severance.","basis":"RECALL","confidence":99},
    {"id":"K11","answer":"The Florida Gators.","basis":"RECALL","confidence":99},
    {"id":"K12","answer":"Jack Draper.","basis":"RECALL","confidence":99},
    {"id":"K13","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K14","answer":"Ju Wenjun.","basis":"RECALL","confidence":99},
    {"id":"K15","answer":"Sanae Takaichi.","basis":"INFERENCE","confidence":70},
    {"id":"K16","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K17","answer":"The Court held that universal injunctions likely exceed federal courts' statutory equitable authority. Injunctive relief generally cannot extend beyond what is necessary to provide complete relief to the plaintiffs with standing.","basis":"RECALL","confidence":97},
    {"id":"K18","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K19","answer":"Magnitude 8.8.","basis":"RECALL","confidence":99},
    {"id":"K20","answer":"Two Seasons, Two Strangers, directed by Sho Miyake.","basis":"RECALL","confidence":85},
    {"id":"K21","answer":"Sydney McLaughlin-Levrone.","basis":"RECALL","confidence":95},
    {"id":"K22","answer":"The True True Story of Raja the Gull and His Master by Rabih Alameddine.","basis":"RECALL","confidence":75},
    {"id":"K23","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K24","answer":"Inter Miami CF.","basis":"RECALL","confidence":90},
    {"id":"K25","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K26","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K27","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K28","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K29","answer":"Robert Golob.","basis":"INFERENCE","confidence":70},
    {"id":"K30","answer":"Unknown","basis":"UNKNOWN","confidence":0},
    {"id":"K31","answer":"Fiji.","basis":"RECALL","confidence":85},
    {"id":"K32","answer":"Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi, for discoveries concerning peripheral immune tolerance.","basis":"RECALL","confidence":95}
  ]
}