Physix Frontier · News Briefing Card (TMTPost · Nov 4, 2026)

AI memory services heat up as low-cost storage masks continuity battle

KEY FACTS

  • Alibaba Cloud's PolarDB Agent Memory Standard edition charges 0.015 yuan per 10,000 memories per hour.
  • Mem0 closed a $24 million funding round in October 2025, with API calls rising from 35 million to 186 million.
  • The LongMemEval benchmark uses 500 questions to test AI memory's cross-session reasoning and knowledge-update capabilities.
  • Redis tests show that retrieving raw fragments and distilled facts together yields 86.1% accuracy, versus 71.2% with distilled memory alone.
  • Claude now supports memory import and export, but import remains an experimental feature.

KEY DATA

0.015 yuan per 10,000 memories per hourPolarDB memory unit price
$24 millionMem0 funding
186 millionMem0 API calls
500LongMemEval question count

PHYSIX OBSERVATION

The storage cost of memory is approaching free; the real barrier is whether historical conversations can be turned into reusable, correctable work experience. Low price is only the entry point; what enterprises will pay for is reduced rework and guaranteed continuity. Independent memory vendors that only save preferences will easily be replaced by platform built-ins; the differentiation lies in cross-model migration and version and permission management.

Source: TMTPost report