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openai/gpt-5.1 · Model identity and integrity report

Last updatedJul 30, 2026, 11:11 AM · Data window: past 90 days

Measured results (90 days)

4 runs · 2 hosts · 4 anomalies

Family-fingerprint consistency

  openai           4  █████████████████████████  100% (expected)

Observed V3 sub-model mapping

  → openai/gpt-5                             3 (75%) ⚠ mismatch sim=0.82
  → abstain                                  1 (25%) — low confidence

Capability score distribution (auxiliary)

  0-49     ██████░░░░░░░░░░░░░░░░░░░    1
  50-69    ░░░░░░░░░░░░░░░░░░░░░░░░░    0
  70-89    ███████████████████░░░░░░    3
  90-100   ░░░░░░░░░░░░░░░░░░░░░░░░░    0

Host integrity ranking

HostRunsAverage scoreFamily matchMost common V3 match
https://www.moyu.info/v1373100%openai/gpt-5 (3)
https://vip.j3gb.com/v110100%

Recent anomalies

https://vip.j3gb.com/v1Jul 7, 2026, 2:24 PM
Self-claimed model
gpt-5.1
V2 predicted family
openai
V3 best match
Verdict
V3 low confidence · Abstain
https://www.moyu.info/v1May 22, 2026, 7:50 AM
Self-claimed model
gpt-5.1
V2 predicted family
openai
V3 best match
openai/gpt-5 (sim 0.87)
Verdict
Sub-model downgrade
https://www.moyu.info/v1May 22, 2026, 6:22 AM
Self-claimed model
gpt-5.1
V2 predicted family
openai
V3 best match
openai/gpt-5 (sim 0.74)
Verdict
Sub-model downgrade
https://www.moyu.info/v1May 20, 2026, 6:21 AM
Self-claimed model
gpt-5.1
V2 predicted family
openai
V3 best match
openai/gpt-5 (sim 0.86)
Verdict
Sub-model downgrade

Methodology

BazaarLink Probe combines a Bayesian V2 family classifier across nine fingerprint categories with V3 sub-model references to verify endpoints claiming openai/gpt-5.1. Low family consistency, a different V3 match, or divergence from selfClaim is flagged as anomalous. BazaarLink Probe home.

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