claude-opus-5
https://madclaude.cloud/v1/messages
https://model-gate.com/en/model-verification/results/MBAJ09XSXC0CSHVAV73EJTBTRQWhy this verification received its result
The public report mirrors the analytical evidence shown to the tester after /chat/verify. Judge scores are rubric assessments; only explicit correct or wrong RECALL answers may influence the pure-recall cutoff boundary.
Judge scoring rationale
No item contains usable RECALL evidence, so the response demonstrates no factual recall.
There is no usable recent RECALL evidence at any point in the tested timeline.
The response consistently abstains and makes no unsupported factual assertions.
Every abstention is labeled UNKNOWN with zero confidence, accurately representing the absence of an answer.
Historical benchmark note: this archived v1.4 overall score used the former fixed diagnostic aggregation. It is retained for reproducibility and must not be interpreted as a v1.5 Model Match score.
Pure-recall timeline
The actual question set was shuffled before the tested-model request. Missing generation slots are not model abstentions. The timeline reconstructs their target months for auditability. Only explicit RECALL answers are cutoff evidence; INFERENCE, GUESS and UNKNOWN remain visible but do not move the boundary.
Knowledge cutoff comparison
- No answer was reported with a RECALL basis.
- No positive or negative recall sequence exists from which to infer a transition.
- The May 2026 reference cutoff is known, but the tested response supplies no pure-RECALL behavioral evidence for comparison.
- A cutoff boundary cannot be manufactured from explicit abstentions.
Semantic: correct 0 · wrong 0 · unknown 24. Excluded from cutoff: 24.
Identity signals
Identity is inferred from consistency between the claimed model and the observed knowledge/answer profile. It is evidence, not remote attestation or cryptographic proof of the serving weights.
Positive signals
- The response is internally consistent and avoids fabrication.
- All required answer IDs are present and recoverable.
Negative signals
- No factual answer or RECALL evidence was supplied for any of the 24 probes.
- The endpoint's claimed model and API identifier are untrusted self-report and receive no behavioral corroboration.
- The complete lack of demonstrated pre-cutoff knowledge is atypical of the claimed reference snapshot.
- The response provides no behavioral evidence supporting the claimed model identity.
- Universal abstention includes numerous high-salience probes dated before the saved May 2026 reference cutoff.
- Because there are no incorrect recall claims, the evidence supports suspicion rather than a highly inconsistent determination.
Verbatim extracted model text
This is the exact model text extracted from the successful external API response and supplied to the judge. HTTP headers, the external API key and the complete provider response envelope are not stored here.
```json
{
"answers": [
{
"id": "SR01",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "SR02",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K01",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K02",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K03",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K04",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K05",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K06",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K07",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K08",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K09",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K10",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K11",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K12",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K13",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K14",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K15",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K16",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K17",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K18",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K19",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K20",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K21",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K22",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K23",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
},
{
"id": "K24",
"answer": "UNKNOWN",
"confidence": 0,
"basis": "UNKNOWN"
}
]
}
```Question-by-question evidence
All admitted questions are shown with the expected answer, available source, tested-model basis, semantic verdict and cutoff eligibility. Ungraded questions are not model abstentions. A correct GUESS or INFERENCE remains correct semantically but is excluded from pure-recall cutoff evidence.
Who won Colombia's 2026 presidential runoff election?
Judge note: Explicit abstention.
Who won the 2026 Masters Tournament?
Judge note: Explicit abstention.
Which party won Hungary's 2026 parliamentary election?
Judge note: Explicit abstention.
Which instability did the Inouye Solar Telescope provide the first experimental confirmation of in the Sun's photosphere?
Judge note: Explicit abstention.
Who was declared the winner of Zambia's 2026 presidential election?
Judge note: Explicit abstention.
Which series won Outstanding Drama Series at the 77th Emmy Awards?
Judge note: Explicit abstention.
Who clinched the 2025 Formula One World Drivers' Championship at the Abu Dhabi Grand Prix?
Judge note: Explicit abstention.
Which film won Best Motion Picture — Drama at the 2026 Golden Globes?
Judge note: Explicit abstention.
Who won the 2025 Wimbledon gentlemen's singles title?
Judge note: Explicit abstention.
Which club won the 2025 UEFA Super Cup?
Judge note: Explicit abstention.
Which country won the 2026 World Baseball Classic?
Judge note: Explicit abstention.
Which team won Super Bowl LX?
Judge note: Explicit abstention.
Which artist won Album of the Year at the 2026 Grammy Awards?
Judge note: Explicit abstention.
Who won New York City's 2025 mayoral election?
Judge note: Explicit abstention.
Who received the 2025 Nobel Peace Prize?
Judge note: Explicit abstention.
Who won the 2026 Wimbledon ladies' singles title?
Judge note: Explicit abstention.
Who won the 2026 Australian Open women's singles title?
Judge note: Explicit abstention.
Which country won the 2026 FIFA World Cup?
Judge note: Explicit abstention.
Which film won Best Picture at the 98th Academy Awards?
Judge note: Explicit abstention.
Which team won the 2025 NBA championship?
Judge note: Explicit abstention.
Which cardinal was elected pope and took the name Leo XIV in the May 2025 conclave?
Judge note: Explicit abstention.
Which film won the Palme d'Or at the 2026 Cannes Film Festival?
Judge note: Explicit abstention.
Which team won the 2026 NBA championship?
Judge note: Explicit abstention.
Which performer won the 2026 Eurovision Song Contest?
Judge note: Explicit abstention.
Question coverage and research notes
Factual questions: 24 · Not graded by judge: 0
Reference cutoff and citations are supplied by the judge, not independently confirmed by the platform. Research notes do not penalize the tested model.
Reproducibility details
MBAJ09XSXC0CSHVAV73EJTBTRQmodel-verification-single-request-v1.4gpt-5.6-solopenai_chatanthropic_messagesMISMATCH · recoveredNot recordedNot recordedNot recordedNot recorded20015,654 ms3,702d783ad1531895d72131fa6c7040adf91ec505a5a1cf65146e95e2eb001047f04Benchmark v1.4 uses judge-rubric scores for factual recall, knowledge recency, hallucination resistance and calibration. The overall score is their fixed 37.5/25/25/12.5 weighted aggregation. Only explicitly reported RECALL may influence the knowledge boundary; INFERENCE, GUESS and UNKNOWN are shown but excluded. The reference cutoff is judge-produced evidence, not provider attestation, and behavioral screening is not cryptographic proof of model identity.
Run an independent verification
Test the same endpoint yourself or browse other public reports before relying on an advertised model identity.