Unverified50% confidenceFactExact time
Newer Ultra accounts retain a temporary 5-hour limit until Anthropic completes verification; verifying a phone number does not remove this limit.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
11/1/2026
First Seen
Valid until: 11/15/2026
Sources
Claude Max vs Ultra: What Are You Really Getting for the Extra $100?
youtubeToolColumn10/30/2026
Related Entities
Related Claims
UnverifiedCache entries have a validity period of approximately 5 minutes (default) to 1 hour (extendable), after which they are treated as cache misses.70% similarUnverifiedAnthropic is phasing out the 5-hour limit for Ultra starting with most existing subscribers and describes this change as "the weekly limit stays the same".70% similarUnverifiedAnthropic的Claude提示缓存要求严格的前缀匹配，缓存有效期为5分钟，频繁使用可延长至1小时66% similarUnverifiedMost companies keep prompt caches for only five minutes, whereas DeepSeek extends cache duration to several days: three days for agent traffic and seven days for chat.65% similarUnverifiedAnthropic's prompt caching only takes effect when the prefix is exactly the same, and cache entries last only 5 minutes by default.64% similar
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