# Long-context Question Answering on LoCoMo Open-Domain 2024

Source: [Long-context Question Answering on LoCoMo Open-Domain 2024](<https://www.sota2.com/research/sota/long-context-question-answering-on-locomo-open-domain-2024>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-04-23T09:19:20.318Z

Evaluation of model performance on the LoCoMo Open-Domain 2024 dataset for Long-context Question Answering, reporting F1 score, BLEU-1, and LLM-as-a-Judge metrics.

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 Question Answering |
| Dataset (including any stated split) | LoCoMo Open-Domain 2024 |
| Metric | F1 Score |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 12 of 12 |
| 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

- [F1 Score](<https://www.sota2.com/research/sota/long-context-question-answering-on-locomo-open-domain-2024.md?metric=F1%20Score>): Higher is better; unit: PERCENT.

- [BLEU-1](<https://www.sota2.com/research/sota/long-context-question-answering-on-locomo-open-domain-2024.md?metric=BLEU-1>): Higher is better; unit: PERCENT.

- [LLM-as-a-Judge Score](<https://www.sota2.com/research/sota/long-context-question-answering-on-locomo-open-domain-2024.md?metric=LLM-as-a-Judge%20Score>): Higher is better; unit: PERCENT.

## Recorded results

| Method | F1 Score | Result date | Report paper |
| --- | --- | --- | --- |
| Lyzr Cognis | 54.77 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| Zep | 49.56 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| Mem0g | 49.27 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| Mem0 | 47.65 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| A-Mem | 44.65 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| MemGPT | 41.04 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| LangMem | 40.91 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| LoCoMo | 40.36 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| OpenAI | 39.31 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| A-Mem\* | 33.34 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| ReadAgent | 9.67 | Not recorded | 69e9a76255a3c32af89f6ea4 |
| MemoryBank | 6.61 | Not recorded | 69e9a76255a3c32af89f6ea4 |

### Lyzr Cognis

F1 Score: 54.77. Result ID: 69e9e40947f34ce924d15135.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### Zep

F1 Score: 49.56. Result ID: 69e9e40947f34ce924d15131.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### Mem0g

F1 Score: 49.27. Result ID: 69e9e40947f34ce924d15134.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa784b1e209131cea77ad6.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### Mem0

F1 Score: 47.65. Result ID: 69e9e40947f34ce924d15133.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa784b1e209131cea77ad6.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### A-Mem

F1 Score: 44.65. Result ID: 69e9e40947f34ce924d1512e.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bf31e209131cea8b869.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### MemGPT

F1 Score: 41.04. Result ID: 69e9e40947f34ce924d1512d.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa722a1e209131cea54e5c.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### LangMem

F1 Score: 40.91. Result ID: 69e9e40947f34ce924d15130.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### LoCoMo

F1 Score: 40.36. Result ID: 69e9e40947f34ce924d1512a.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa72531e209131cea55a32.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### OpenAI

F1 Score: 39.31. Result ID: 69e9e40947f34ce924d15132.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### A-Mem\*

F1 Score: 33.34. Result ID: 69e9e40947f34ce924d1512f.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bf31e209131cea8b869.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### ReadAgent

F1 Score: 9.67. Result ID: 69e9e40947f34ce924d1512b.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa74351e209131cea6074c.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

### MemoryBank

F1 Score: 6.61. Result ID: 69e9e40947f34ce924d1512c.

[Reporting paper](<https://www.sota2.com/research/paper/69e9a76255a3c32af89f6ea4.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f731e209131cea45ab8.md>)

Recorded evaluation configuration: {"Backbone":"GPT-4.1"}. This record does not assert independent reproduction.

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