Recent outages and service degradations have kept trader focus on Anthropic’s infrastructure stability for the Claude large language models and associated API. Multiple incidents in early September, including elevated errors affecting Mythos 5.1, Fable 5.1, and Opus variants on September 3 and 11, plus degraded Claude API latency for Midwest traffic and an ongoing Windows Cowork functionality issue since September 10, have produced several distinct downtime periods so far. These events reflect scaling pressures on model inference and desktop tooling amid rapid capability updates. With roughly half the month elapsed and no major new releases or regulatory milestones on the immediate horizon, the tight 42.5% split between the 5-7 and 8-10 day ranges captures uncertainty over whether short-lived partial outages will continue at the current pace or ease.