# Long-Context Memory Retrieval and Reasoning on LoCoMo 10K context input token limit Source: [Long-Context Memory Retrieval and Reasoning on LoCoMo 10K context input token limit]() Collection index: [llms.txt]() Data updated: 2026-06-11T10:26:30.278Z Evaluation of model performance on the LoCoMo dataset variant constrained to a 10K context input token limit, focusing on long-context memory retrieval and reasoning capabilities, measured using L-J scores. A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. | Scope | Recorded value | | --- | --- | | Task | Long-Context Memory Retrieval and Reasoning | | Dataset (including any stated split) | LoCoMo 10K context input token limit | | Metric | Single-hop L-J Score | | Unit | SCALAR | | Direction | Higher is better | | Results loaded | 10 of 10 | | Coverage | All results currently returned for this benchmark | Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol. ## Metrics - [Single-hop L-J Score](): Higher is better; unit: SCALAR. - [Temporal L-J Score](): Higher is better; unit: SCALAR. - [Adversarial L-J Score](): Higher is better; unit: SCALAR. - [Overall L-J Score](): Higher is better; unit: SCALAR. ## Recorded results | Method | Single-hop L-J Score | Result date | Report paper | | --- | --- | --- | --- | | No limit | 78.1 | Not recorded | 6a2a4136d33dfb23e783943b | | HORMA | 70.5 | Not recorded | 6a2a4136d33dfb23e783943b | | Mem0 | 64.7 | Not recorded | 6a2a4136d33dfb23e783943b | | Embedding Retrieval | 57.2 | Not recorded | 6a2a4136d33dfb23e783943b | | Truncation | 47.8 | Not recorded | 6a2a4136d33dfb23e783943b | | Embedding | 47.5 | Not recorded | 6a2a4136d33dfb23e783943b | | Acon | 42.8 | Not recorded | 6a2a4136d33dfb23e783943b | | Slide Window | 39.9 | Not recorded | 6a2a4136d33dfb23e783943b | | A-MEM | 39.6 | Not recorded | 6a2a4136d33dfb23e783943b | | ReSum | 21.9 | Not recorded | 6a2a4136d33dfb23e783943b | ### No limit Single-hop L-J Score: 78.1. Result ID: 6a2a8bedfbc373592c285749. [Reporting paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Context Token Limit":"No limit"}. This record does not assert independent reproduction. ### HORMA Single-hop L-J Score: 70.5. Result ID: 6a2a8bedfbc373592c285752. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"External Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Mem0 Single-hop L-J Score: 64.7. Result ID: 6a2a8bedfbc373592c285750. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"External Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Embedding Retrieval Single-hop L-J Score: 57.2. Result ID: 6a2a8bedfbc373592c285751. [Reporting paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"External Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Truncation Single-hop L-J Score: 47.8. Result ID: 6a2a8bedfbc373592c28574a. [Reporting paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"Internal Static Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Embedding Single-hop L-J Score: 47.5. Result ID: 6a2a8bedfbc373592c28574c. [Reporting paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"Internal Static Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Acon Single-hop L-J Score: 42.8. Result ID: 6a2a8bedfbc373592c28574e. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"Internal Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### Slide Window Single-hop L-J Score: 39.9. Result ID: 6a2a8bedfbc373592c28574b. [Reporting paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"Internal Static Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### A-MEM Single-hop L-J Score: 39.6. Result ID: 6a2a8bedfbc373592c28574f. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"External Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. ### ReSum Single-hop L-J Score: 21.9. Result ID: 6a2a8bedfbc373592c28574d. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Primary Agent Backbone":"Claude Sonnet 4.5","Memory Architecture Category":"Internal Dynamic Memory","Context Token Limit":"10K"}. This record does not assert independent reproduction. Page 1 of 1. This is an index page, not the full collection.