Recent outages across Claude.ai, the API, Claude Code, and models including Opus 5 and Mythos 5 have highlighted persistent scaling pressures at Anthropic, with August 2026 already logging over a dozen affected days amid demand exceeding infrastructure capacity. Trader consensus clusters around 5–13 downtime days for September because historical patterns show frequent but typically brief incidents rather than prolonged failures, while 90-day uptime metrics near 99.5% suggest partial resilience from ongoing fixes. Key swing factors include whether recent mitigations stabilize inference loads before month-end peaks, any new model optimizations or capacity expansions, and competitive pressure from rival large language model providers that could accelerate reliability improvements. The tight spread between leading bins reflects uncertainty over how quickly these dynamics will shift.