Opus 4.8 elevated errors now monitoring; Fable 5 incident resolved — ModelPriceLab

Changes/Opus 4.8 elevated errors now monitoring; Fable 5 incident resolved

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Opus 4.8 elevated errors now monitoring; Fable 5 incident resolved

An incident with elevated error rates on Opus 4.8 is now in monitoring after investigation. A separate incident with elevated errors across Fable 5 has been resolved. These are standard status updates with no breaking changes.

Jul 24, 2026Views:0

Impact Assessment

Cost0

Reliability2

Migration0

Quality0

Compliance0

Reliability impact is low as both incidents are either resolved or being monitored. No cost, migration, quality, or compliance impact.

Changes

Before

Elevated errors across Fable 5 | https://status.claude.com/incidents/lw0sb1srtznh | &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;21&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;12:07&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Resolved&lt;/strong&gt; - This incident has been resolved. &lt;/p&gt; &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;21&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;11:47&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Monitoring&lt;/strong&gt; - A fix has been implemented and we are monitoring the results. &lt;/p&gt; &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;21&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;11:28&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Identified&lt;/strong&gt; - The issue has been identified and a fix is being implemented. &lt;/p&gt; &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;21&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;11:24&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Update&lt;/strong&gt; - We are continuing to investigate this issue. &lt;/p&gt; &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;21&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;11:19&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Investigating&lt;/strong&gt; - We are currently investigating this issue. &lt;/p&gt;

After

Elevated error rate on Opus 4.8 | https://status.claude.com/incidents/0lbk5m7mbqk5 | &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;24&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;09:35&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Monitoring&lt;/strong&gt; - A fix has been implemented and we are monitoring the results. &lt;/p&gt; &lt;p&gt; &lt;small&gt;Jul &lt;var data-var=&apos;date&apos;&gt;24&lt;/var&gt;, &lt;var data-var=&apos;time&apos;&gt;09:09&lt;/var&gt; UTC&lt;/small&gt;&lt;br&gt; &lt;strong&gt;Investigating&lt;/strong&gt; - We are currently investigating this issue. &lt;/p&gt;

Sources

status

Anthropic Status History

Elevated error rate on Opus 4.8 | https://status.claude.com/incidents/0lbk5m7mbqk5 | <p> <small>Jul <var data-var='date'>24</var>, <var data-var='time&apos...

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