anthropic/claude-opus-4.1 · Model identity and integrity report

Name: anthropic/claude-opus-4.1 relay integrity probe aggregate
Creator: BazaarLink

Last updated：Jul 30, 2026, 11:23 AM · Data window: past 90 days

Measured results (90 days)

2 runs · 1 hosts · 2 anomalies

Family-fingerprint consistency

  anthropic        2  █████████████████████████  100% (expected)

Observed V3 sub-model mapping

  → anthropic/claude-opus-4.5                1 (50%) ⚠ mismatch sim=1.00
  → anthropic/claude-opus-4.6                1 (50%) ⚠ mismatch sim=1.00

Capability score distribution (auxiliary)

  0-49     ░░░░░░░░░░░░░░░░░░░░░░░░░    0
  50-69    ░░░░░░░░░░░░░░░░░░░░░░░░░    0
  70-89    █████████████████████████    2
  90-100   ░░░░░░░░░░░░░░░░░░░░░░░░░    0

Host integrity ranking

Host	Runs	Average score	Family match	Most common V3 match
https://www.moyu.info/v1	2	84	100%	anthropic/claude-opus-4.5 (1)

Recent anomalies

https://www.moyu.info/v1May 19, 2026, 4:00 AM

Self-claimed model: claude-opus-4-1-20250805
V2 predicted family: anthropic
V3 best match: anthropic/claude-opus-4.5 (sim 1.00)
Verdict: Sub-model downgrade

https://www.moyu.info/v1May 19, 2026, 3:59 AM

Self-claimed model: claude-opus-4-1-20250805
V2 predicted family: anthropic
V3 best match: anthropic/claude-opus-4.6 (sim 1.00)
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 anthropic/claude-opus-4.1. Low family consistency, a different V3 match, or divergence from selfClaim is flagged as anomalous. BazaarLink Probe home.

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