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Recent method papers — theorized, no distinct product

194
T1 2
T2 9
T3 69
T4 114
T5 0
med citations35
med GH stars491
med funding—
storage
vector
47
parametric
43
kv-cache
29
+ 7 other
75
retrieval
similarity
86
parametric-recall
38
attention
30
+ 8 other
40
persistence
long-term
79
session
57
parametric-permanent
35
+ 4 other
23
update
extraction
41
consolidation
32
parametric-edit
31
+ 8 other
90
unit
episode
47
kv-token
32
skill
24
+ 11 other
91
governance
inspectable
69
n/a
51
opaque
49
+ 6 other
25
conflict
llm-arbitrate
100
n/a
76
out-of-scope
7
+ 8 other
11

Use-case-specific agent harnesses

86
T1 10
T2 35
T3 41
T4 0
T5 0
med citations—
med GH stars12.3k
med funding$50.0M

Vertical / domain-specific AI memory

64
T1 34
T2 22
T3 7
T4 1
T5 0
med citations67
med GH stars359
med funding$110.0M
storage
vector
28
graph
11
relational
11
+ 6 other
14
retrieval
similarity
28
injection
13
graph-traversal
11
+ 4 other
12
persistence
long-term
30
cross-session
16
session
13
+ 1 other
5
update
extraction
31
overwrite
17
append-only
10
+ 3 other
6
unit
episode
28
fact
14
document
12
+ 3 other
10
governance
inspectable
26
auditable
19
opaque
14
+ 1 other
5
conflict
append
14
none
14
overwrite
13
+ 10 other
23

Training infrastructure

51
T1 22
T2 18
T3 9
T4 2
T5 0
med citations—
med GH stars10.2k
med funding$26.6M

Dedicated memory layers

50
T1 11
T2 27
T3 11
T4 1
T5 0
med citations1.0k
med GH stars3.7k
med funding$5.3M
storage
vector
18
graph
10
file
6
+ 5 other
16
retrieval
similarity
31
graph-traversal
7
agentic
3
+ 6 other
9
persistence
long-term
38
cross-session
6
lifelong
2
+ 2 other
4
update
extraction
34
agent-controlled
3
append-only
3
+ 6 other
10
unit
fact
18
episode
14
document
6
+ 8 other
12
governance
opaque
18
inspectable
12
auditable
6
+ 3 other
14
conflict
none
20
llm-arbitrate
11
n/a
10
+ 5 other
9

Agent frameworks (no first-party memory layer)

47
T1 16
T2 11
T3 19
T4 1
T5 0
med citations—
med GH stars23.1k
med funding$21.0M

Memory benchmarks & evaluation

46
T1 0
T2 4
T3 36
T4 6
T5 0
med citations200
med GH stars980
med funding—
storage
n/a
38
none-trivial
7
kv
1
retrieval
n/a
38
none
7
extraction-pull
1
persistence
n/a
39
cross-session
3
long-term
3
+ 1 other
1
update
read-only
44
agent-controlled
1
n/a
1
unit
n/a
39
episode
2
fact
2
+ 2 other
3
governance
n/a
45
opaque
1
conflict
n/a
38
out-of-scope
6
agent
1
+ 1 other
1

Retrieval-as-memory hybrids

38
T1 1
T2 0
T3 21
T4 16
T5 0
med citations97
med GH stars625
med funding—
storage
vector
18
graph
11
hybrid
7
+ 2 other
2
retrieval
similarity
23
graph-traversal
12
cache-lookup
1
+ 2 other
2
persistence
long-term
34
parametric-permanent
3
session
1
update
read-only
27
accretion
5
parametric-edit
4
+ 1 other
2
unit
chunk
24
document
8
fact
4
+ 1 other
2
governance
inspectable
31
plaintext
5
opaque
2
conflict
n/a
36
llm-arbitrate
2

Framework-embedded memory

33
T1 7
T2 17
T3 9
T4 0
T5 0
med citations—
med GH stars26.2k
med funding$35.0M
storage
kv
15
vector
11
relational
4
+ 3 other
3
retrieval
injection
14
similarity
13
exact-match
4
+ 2 other
2
persistence
cross-session
15
long-term
9
session
9
update
overwrite
12
append-only
9
extraction
7
+ 4 other
5
unit
episode
17
fact
8
document
6
+ 1 other
2
governance
inspectable
24
opaque
3
editable
2
+ 3 other
4
conflict
overwrite
8
llm-arbitrate
7
append
4
+ 5 other
14

Agent IDEs & coding harnesses

32
T1 19
T2 10
T3 3
T4 0
T5 0
med citations—
med GH stars42.7k
med funding$105.0M

Personal AI / PKM / lifelogging memory

23
T1 6
T2 14
T3 3
T4 0
T5 0
med citations—
med GH stars10.6k
med funding$7.3M
storage
vector
8
graph
7
relational
4
+ 2 other
4
retrieval
similarity
12
graph-traversal
8
exact-match
1
+ 2 other
2
persistence
long-term
21
lifelong
1
parametric-permanent
1
update
overwrite
12
append-only
5
extraction
5
+ 1 other
1
unit
document
16
fact
4
episode
2
+ 1 other
1
governance
user-controllable
21
auditable
1
opaque
1
conflict
overwrite
12
none
6
append
2
+ 3 other
3

Inference platforms & gateways

21
T1 10
T2 5
T3 6
T4 0
T5 0
med citations—
med GH stars10.9k
med funding$57.0M

Coding-agent memory

21
T1 5
T2 6
T3 10
T4 0
T5 0
med citations—
med GH stars22.4k
med funding$267.5M
storage
file
11
graph
3
kv
2
+ 3 other
5
retrieval
injection
11
graph-traversal
3
agentic
2
+ 3 other
5
persistence
cross-session
9
long-term
9
session
3
update
agent-controlled
6
extraction
5
append-only
3
+ 4 other
7
unit
document
6
fact
6
episode
5
+ 3 other
4
governance
user-controllable
7
inspectable
5
editable
4
+ 2 other
5
conflict
none
11
agent
3
append-only
2
+ 4 other
5

Evaluation & observability platforms

21
T1 4
T2 10
T3 7
T4 0
T5 0
med citations—
med GH stars4.1k
med funding$5.6M

Claude Code memory mechanisms

18
T1 6
T2 12
T3 0
T4 0
T5 0
med citations2.6k
med GH stars2.0k
med funding—
storage
graph
7
vector
6
file
3
+ 1 other
2
retrieval
similarity
7
graph-traversal
6
exact-match
2
+ 2 other
3
persistence
long-term
13
cross-session
4
project-bound
1
update
extraction
6
overwrite
5
append-only
4
+ 3 other
3
unit
fact
12
chunk
3
episode
2
+ 1 other
1
governance
inspectable
10
user-controllable
4
auditable
2
+ 1 other
2
conflict
llm-arbitrate
10
append
5
bi-temporal
1
+ 2 other
2

Knowledge-graph platforms

16
T1 10
T2 6
T3 0
T4 0
T5 0
med citations—
med GH stars7.7k
med funding$7.8M

Platform-provider memory

16
T1 10
T2 3
T3 3
T4 0
T5 0
med citations—
med GH stars—
med funding$65.0B
storage
kv
6
proprietary
3
file
2
+ 4 other
5
retrieval
injection
7
similarity
4
extraction-pull
2
+ 3 other
3
persistence
long-term
11
cross-session
5
update
extraction
12
agent-controlled
2
append-only
1
+ 1 other
1
unit
fact
11
episode
3
file
1
+ 1 other
1
governance
user-controllable
7
opaque
5
inspectable
2
+ 2 other
2
conflict
llm-arbitrate
7
none
6
manual
1
+ 2 other
2

Robotics foundation models & agent stacks

15
T1 6
T2 4
T3 5
T4 0
T5 0
med citations0
med GH stars99
med funding$181.0M

Vector-database infrastructure

15
T1 13
T2 2
T3 0
T4 0
T5 0
med citations—
med GH stars20.1k
med funding$73.0M

File-backed / editor paradigms

15
T1 5
T2 8
T3 2
T4 0
T5 0
med citations—
med GH stars25.0k
med funding$2.0k
storage
file
15
retrieval
injection
14
hybrid-rerank
1
persistence
cross-session
13
long-term
2
update
overwrite
13
agent-controlled
2
unit
document
14
fact
1
governance
user-controllable
13
editable
2
conflict
manual
12
llm-arbitrate
1
n/a
1
+ 1 other
1

Foundation models (substrate reference)

14
T1 10
T2 4
T3 0
T4 0
T5 0
med citations—
med GH stars3
med funding$30.1B

Theoretical / informal — ideas without a paper

14
T1 0
T2 0
T3 0
T4 2
T5 12
med citations1
med GH stars0
med funding—
storage
none-trivial
5
vector
3
file
2
+ 2 other
4
retrieval
injection
3
none
3
similarity
3
+ 4 other
5
persistence
long-term
5
n/a
3
ephemeral
2
+ 3 other
4
update
n/a
8
parametric-edit
2
agent-controlled
1
+ 3 other
3
unit
file
4
n/a
3
chunk
2
+ 4 other
5
governance
n/a
10
auditable
1
editable
1
+ 2 other
2
conflict
out-of-scope
7
n/a
6
append
1

Voice agent platforms

13
T1 9
T2 4
T3 0
T4 0
T5 0
med citations—
med GH stars9.9k
med funding$50.0M

Computer-use & desktop agents

13
T1 5
T2 6
T3 2
T4 0
T5 0
med citations2.0k
med GH stars23.1k
med funding$17.0M

Guardrails & AI security

12
T1 0
T2 0
T3 12
T4 0
T5 0
med citations—
med GH stars4.7k
med funding$2.0k

AI sandbox & runtime environments

11
T1 2
T2 6
T3 3
T4 0
T5 0
med citations—
med GH stars9.3k
med funding$13.0M

Voice-first / wearable AI memory

11
T1 8
T2 2
T3 0
T4 0
T5 1
med citations—
med GH stars13.2k
med funding$11.0M
storage
file
6
vector
3
graph
1
+ 1 other
1
retrieval
similarity
6
extraction-pull
3
agentic
1
+ 1 other
1
persistence
long-term
7
lifelong
4
update
append-only
10
agent-controlled
1
unit
episode
10
file
1
governance
user-controllable
8
inspectable
2
opaque
1
conflict
append
8
none
3

Embedding & reranker services

11
T1 6
T2 4
T3 1
T4 0
T5 0
med citations—
med GH stars1.9k
med funding$118.5M

MCP gateways & registries

11
T1 0
T2 0
T3 10
T4 1
T5 0
med citations—
med GH stars1.1k
med funding$2.0k

Research / specialised systems

10
T1 0
T2 1
T3 5
T4 4
T5 0
med citations32
med GH stars1.8k
med funding—
storage
hybrid
5
graph
2
vector
2
+ 1 other
1
retrieval
similarity
7
graph-traversal
2
attention
1
persistence
long-term
9
session
1
update
consolidation
5
append-only
2
extraction
1
+ 2 other
2
unit
chunk
3
episode
3
summary
2
+ 2 other
2
governance
inspectable
5
opaque
5
conflict
n/a
5
llm-arbitrate
4
append
1

Multi-agent orchestration platforms

10
T1 0
T2 7
T3 3
T4 0
T5 0
med citations—
med GH stars1.0k
med funding$50.0M

Agent identity & auth

10
T1 0
T2 0
T3 10
T4 0
T5 0
med citations—
med GH stars12.4k
med funding—

Memory governance, privacy & safety

9
T1 6
T2 1
T3 2
T4 0
T5 0
med citations—
med GH stars3.1k
med funding$4.8M
storage
n/a
3
append-only
2
file
1
+ 3 other
3
retrieval
agentic
2
exact-match
2
injection
2
+ 3 other
3
persistence
long-term
5
session
4
update
read-only
6
append-only
2
extraction
1
unit
fact
2
policy
2
attack
1
+ 4 other
4
governance
auditable
8
user-controllable
1
conflict
n/a
5
llm-arbitrate
2
append-only
1
+ 1 other
1

Search platforms (non-memory)

8
T1 3
T2 3
T3 2
T4 0
T5 0
med citations—
med GH stars13.7k
med funding$2.0k

Browser-agent memory

8
T1 5
T2 3
T3 0
T4 0
T5 0
med citations—
med GH stars—
med funding$97.8M
storage
file
4
kv
2
proprietary
1
+ 1 other
1
retrieval
injection
3
extraction-pull
2
similarity
2
+ 1 other
1
persistence
long-term
6
cross-session
1
session
1
update
append-only
3
overwrite
2
agent-controlled
1
+ 2 other
2
unit
episode
5
fact
2
trajectory
1
governance
user-controllable
5
opaque
2
inspectable
1
conflict
none
8

Enterprise-search adjacencies

8
T1 6
T2 2
T3 0
T4 0
T5 0
med citations—
med GH stars59.6k
med funding$254.0M

Memory observability & monitoring

5
T1 3
T2 2
T3 0
T4 0
T5 0
med citations—
med GH stars5.8k
med funding$1.3M
storage
relational
3
file
1
vector
1
retrieval
exact-match
3
extraction-pull
1
similarity
1
persistence
long-term
3
cross-session
2
update
append-only
4
read-only
1
unit
episode
4
fact
1
governance
auditable
5
conflict
n/a
5

Durable execution & workflow engines

5
T1 0
T2 0
T3 5
T4 0
T5 0
med citations—
med GH stars1.6k
med funding—