Historical
Anthropic · Incident record · May 15, 00:18 UTC

Elevated error rates on requests to some models

Historical record · source provider_api · confidence high
100/100
User-Impact Score · Critical
2026-05-15 00:20 UTC — UIS 100
startedresolved

1h 28m · Anthropic · scope unspecified · historical record (live confirmation cannot be fabricated retroactively).

Cite this incidentBibTeX · APA · MLA · Chicago · RIS
ai-receipts. (2026, May 15). Elevated error rates on requests to some models [Incident record, methodology v1.0]. ai-receipts. https://aireceipts.org/incidents/anthropic:8z7l5zcy0v3b
Embed this incidentiframe · CC-BY-4.0
<iframe src="https://aireceipts.org/incidents/anthropic:8z7l5zcy0v3b?embed=1" title="Anthropic: Elevated error rates on requests to some models — ai-receipts incident record" width="100%" height="420" loading="lazy" style="border:1px solid #e4e4e7"></iframe>
<p><a href="https://aireceipts.org/incidents/anthropic:8z7l5zcy0v3b">Source: ai-receipts</a> · CC-BY-4.0</p>

Data record

UIS
100/100
Status
resolved
Started (UTC)
2026-05-15 00:18
Duration
1h 28m
Components
Claude API (api.anthropic.com), Claude Code
Scope
scope unspecified — see methodology limitations
Confirmation
Historical record. Live multi-source confirmation cannot be fabricated retroactively.
Methodology
v1 · how this score was computed · provider status page

Evidence chain

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  101. May 15, 00:18 UTC
    First independent confirmation
  102. May 15, 00:22 UTC
    [hn keyword]

    Elevated error rates on Opus 4.7

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  103. May 15, 00:22 UTC
    First official acknowledgment
    4 min after ai-receipts confirmation