anthropic/claude-sonnet-4 · Model identity and integrity report

Name: anthropic/claude-sonnet-4 relay integrity probe aggregate
Creator: BazaarLink

Last updated：Jul 30, 2026, 12:12 PM · Data window: past 90 days

Measured results (90 days)

3 runs · 1 hosts · 3 anomalies

Family-fingerprint consistency

  anthropic        3  █████████████████████████  100% (expected)

Observed V3 sub-model mapping

  → anthropic/claude-sonnet-4.5              3 (100%) ⚠ mismatch sim=0.90

Capability score distribution (auxiliary)

  0-49     ░░░░░░░░░░░░░░░░░░░░░░░░░    0
  50-69    █████████████████░░░░░░░░    2
  70-89    ████████░░░░░░░░░░░░░░░░░    1
  90-100   ░░░░░░░░░░░░░░░░░░░░░░░░░    0

Host integrity ranking

Host	Runs	Average score	Family match	Most common V3 match
https://www.moyu.info/v1	3	70	100%	anthropic/claude-sonnet-4.5 (3)

Recent anomalies

https://www.moyu.info/v1May 19, 2026, 5:28 AM

Self-claimed model: claude-sonnet-4-20250514
V2 predicted family: anthropic
V3 best match: anthropic/claude-sonnet-4.5 (sim 1.00)
Verdict: Sub-model downgrade

https://www.moyu.info/v1May 19, 2026, 5:01 AM

Self-claimed model: claude-sonnet-4-20250514
V2 predicted family: anthropic
V3 best match: anthropic/claude-sonnet-4.5 (sim 1.00)
Verdict: Sub-model downgrade

https://www.moyu.info/v1May 19, 2026, 4:29 AM

Self-claimed model: claude-sonnet-4-20250514
V2 predicted family: anthropic
V3 best match: anthropic/claude-sonnet-4.5 (sim 0.70)
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-sonnet-4. Low family consistency, a different V3 match, or divergence from selfClaim is flagged as anomalous. BazaarLink Probe home.

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