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Alternatives · Memory systems

Claude memory tool alternatives, graded

thecontinuitylayer.com/alternatives/claude-memory-tool

9 of the 13 memory systems on the record score higher than Claude memory tool's 4½ of 8 (grade C): Mem0 (7½, A), LangMem and LangGraph Store (7½, A), MemOS (7, A−) lead the ranking. Every grade is read from the maker's own page, checked 3 November 2026, never from a review.

C
Claude memory tool · 4½ of 8
13
memory systems to compare
9
score higher
3 November 2026
Makers' pages checked

Every memory system on the record, ranked

Claude memory tool’s own row is shaded. The five columns are the tests a person switching asks about first; each product page has every test, with the maker’s line and the source.

memory systemGradeOpen sourceSelf-hostExportAny modelDelete
Mem0#1 · Mem0A7½/8
LangMem and LangGraph Store#2 · LangChainA7½/8
MemOS#3 · MemTensorA−7/8
Letta#4 · Letta (formerly MemGPT)B+6½/8
Cognee#5 · CogneeB+6½/8
Honcho#6 · Plastic LabsB+6½/8
Zep Cloud#7 · ZepB6/8
Supermemory#8 · SupermemoryB6/8
Memobase#9 · memodb-ioB−5½/8
Claude memory tool#10 · Anthropic · this oneC4½/8
Graphiti#11 · ZepC4½/8
Agent Framework memory#12 · MicrosoftC−4/8
Agent Engine Memory Bank#13 · Google CloudD3½/8
OpenAI conversation state#14 · OpenAID3/8
  • Open source · Is it open source?
  • Self-host · Can you run it yourself?
  • Export · Can you take your memory out of it?
  • Any model · Does it work with more than one model provider?
  • Delete · Can you delete a user's memories from it?

Claude memory tool alternatives, by what matters

9 memory systems that are open source

  1. A Mem0
  2. A LangMem and LangGraph Store
  3. A− MemOS
  4. B+ Letta
  5. B+ Cognee
  6. B+ Honcho
  7. B− Memobase
  8. C Graphiti
  9. C− Agent Framework memory

Claude memory tool's grade on this test: no.

3 memory systems that let you take your memory out

  1. A Mem0
  2. A LangMem and LangGraph Store
  3. C Graphiti

Claude memory tool passes this test too.

8 memory systems that work with more than one model provider

  1. A Mem0
  2. A LangMem and LangGraph Store
  3. A− MemOS
  4. B+ Letta
  5. B+ Cognee
  6. B+ Honcho
  7. B Supermemory
  8. C Graphiti

Claude memory tool's grade on this test: no.

What Anthropic changed lately

  1. Since 3 November 2026, text generated by Claude Mythos 5, Claude Opus 4.7 and Claude Sonnet 4.6 carries Anthropic's text watermark on the platforms Anthropic lists; on Sonnet 4.6 a request that sets temperature, top_p or top_k to a non-default value might not carry it. The Decoder reported on 4 November that a notice to API customers extends the watermark to Claude Opus 4.6, Opus 4.5, Sonnet 4.5 and Haiku 4.5 from 16 November 2026, a few days later on Amazon Bedrock, with the same caveat, and that customers cannot turn it off.

    source

  2. The pricing page lists a new Ultra plan at $200 a month and Max at $100 a month only; on 23 October 2026 it listed Max in two tiers, the higher one priced only on a help page. The usage-limits page says verified Ultra accounts have no five-hour session limit. Neither page dates the change.

    source

  3. Anthropic deprecated fast mode for Claude Opus 4.8 on 30 October 2026, with removal on 30 November 2026. After that, API requests to claude-opus-4-8 that set speed to fast return an error; Anthropic points people who want fast mode to Claude Opus 5.5.

    source

Every change from Anthropic, dated →

Alternatives to the others

The whole shelf: Memory systems. How the grades are made: How we grade. No maker pays for a place or a grade.