Unverified50% confidenceFactExact time
According to the poster's account, Anthropic customer service confirmed that two resolved high-error-rate incidents occurred with Claude Sonnet 5.5 that day, and these errors trigger retries that consume quota faster.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/27/2026
First Seen
Valid until: 11/10/2026
Sources
Related Entities
Related Claims
UnverifiedClaude Sonnet 5.5 recently experienced a service incident with an elevated request error rate.79% similarUnverifiedThe earlier Sonnet 5 had mediocre benchmark scores and suffered from runaway cost increases on complex tasks.74% similarUnverifiedClaude Sonnet 5.5's thinking mode cannot be turned off, forced tool calls will return an error, and non-default sampling parameters will return an error.68% similarUnverifiedIntermittent errors appear as peaks rather than reproducing steadily, making troubleshooting significantly harder than with sustained failures, because sustained failures have clear reproduction paths and many consistent errors visible in logs, whereas intermittent peaks appear as short spikes on monitoring charts and may have already subsided by the time engineers get involved.67% similarUnverifiedThis performance degradation mainly affects API requests to Claude Fable 5, manifesting as elevated errors.66% similar
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