# Open-vocabulary Part Segmentation on PARS Ad-hoc Concepts

Source: [Open-vocabulary Part Segmentation on PARS Ad-hoc Concepts](<https://www.sota2.com/research/sota/open-vocabulary-part-segmentation-on-pars-ad-hoc-concepts>)

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

Data updated: 2026-05-20T08:44:02.551Z

Evaluation of Open-vocabulary Part Segmentation performance on the PARS Ad-hoc Concepts dataset, reporting gIoU, cIoU, and xIoU.

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 | Open-vocabulary Part Segmentation |
| Dataset (including any stated split) | PARS Ad-hoc Concepts |
| Metric | gIoU |
| Unit | PERCENT |
| Direction | Higher is better |
| Results loaded | 28 of 28 |
| 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

- [gIoU](<https://www.sota2.com/research/sota/open-vocabulary-part-segmentation-on-pars-ad-hoc-concepts.md?metric=gIoU>): Higher is better; unit: PERCENT.

- [cIoU](<https://www.sota2.com/research/sota/open-vocabulary-part-segmentation-on-pars-ad-hoc-concepts.md?metric=cIoU>): Higher is better; unit: PERCENT.

- [xIoU](<https://www.sota2.com/research/sota/open-vocabulary-part-segmentation-on-pars-ad-hoc-concepts.md?metric=xIoU>): Higher is better; unit: PERCENT.

## Recorded results

| Method | gIoU | Result date | Report paper |
| --- | --- | --- | --- |
| VLPart\* | 57.5 | Not recorded | 6a0d4046f984739ed6737a09 |
| VASA | 56.9 | Not recorded | 6a0d4046f984739ed6737a09 |
| VLPart\* | 55.2 | Not recorded | 6a0d4046f984739ed6737a09 |
| VASA | 54 | Not recorded | 6a0d4046f984739ed6737a09 |
| Seg-Zero | 47.8 | Not recorded | 6a0d4046f984739ed6737a09 |
| SAM3 Agent | 46.4 | Not recorded | 6a0d4046f984739ed6737a09 |
| Semantic-SAM† | 44.5 | Not recorded | 6a0d4046f984739ed6737a09 |
| LISA | 42.6 | Not recorded | 6a0d4046f984739ed6737a09 |
| LISA++ | 42.3 | Not recorded | 6a0d4046f984739ed6737a09 |
| Seg-Zero | 40.8 | Not recorded | 6a0d4046f984739ed6737a09 |
| SAM3 Agent | 40.5 | Not recorded | 6a0d4046f984739ed6737a09 |
| SegAgent-SC | 40.4 | Not recorded | 6a0d4046f984739ed6737a09 |
| OVSeg | 39.3 | Not recorded | 6a0d4046f984739ed6737a09 |
| Semantic-SAM† | 39.2 | Not recorded | 6a0d4046f984739ed6737a09 |
| SegAgent-SAM | 38.5 | Not recorded | 6a0d4046f984739ed6737a09 |
| RESAnything | 38.2 | Not recorded | 6a0d4046f984739ed6737a09 |
| LISA | 37.9 | Not recorded | 6a0d4046f984739ed6737a09 |
| SAM3 | 37.3 | Not recorded | 6a0d4046f984739ed6737a09 |
| CoReS | 36.9 | Not recorded | 6a0d4046f984739ed6737a09 |
| LISA++ | 35.2 | Not recorded | 6a0d4046f984739ed6737a09 |
| SegAgent-SC | 34.6 | Not recorded | 6a0d4046f984739ed6737a09 |
| OVSeg | 34.4 | Not recorded | 6a0d4046f984739ed6737a09 |
| SAM3 | 34.1 | Not recorded | 6a0d4046f984739ed6737a09 |
| RESAnything | 33.1 | Not recorded | 6a0d4046f984739ed6737a09 |
| SegAgent-SAM | 33.1 | Not recorded | 6a0d4046f984739ed6737a09 |
| CoReS | 33 | Not recorded | 6a0d4046f984739ed6737a09 |
| VisionReasoner | 28.1 | Not recorded | 6a0d4046f984739ed6737a09 |
| VisionReasoner | 27.2 | Not recorded | 6a0d4046f984739ed6737a09 |

### VLPart\*

gIoU: 57.5. Result ID: 6a0d72c9fbc373592c05833e.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f6f1e209131cea4589a.md>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### VASA

gIoU: 56.9. Result ID: 6a0d72c9fbc373592c05834b.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen3-VL 32B","Train. Free":true}. This record does not assert independent reproduction.

### VLPart\*

gIoU: 55.2. Result ID: 6a0d72c9fbc373592c058322.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f6f1e209131cea4589a.md>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### VASA

gIoU: 54. Result ID: 6a0d72c9fbc373592c05832f.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen3-VL 32B","Train. Free":true}. This record does not assert independent reproduction.

### Seg-Zero

gIoU: 47.8. Result ID: 6a0d72c9fbc373592c058345.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa79b81e209131cea7f19c.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### SAM3 Agent

gIoU: 46.4. Result ID: 6a0d72c9fbc373592c05834a.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6923e69bd6b0dd334292f0ad.md>)

[Implementation](<https://github.com/facebookresearch/sam3>)

Recorded evaluation configuration: {"VLM Version":"Qwen3-VL 32B","Train. Free":true}. This record does not assert independent reproduction.

### Semantic-SAM†

gIoU: 44.5. Result ID: 6a0d72c9fbc373592c058340.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ffd1e209131cea485f4.md>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### LISA

gIoU: 42.6. Result ID: 6a0d72c9fbc373592c058342.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa730a1e209131cea5a0b2.md>)

[Implementation](<https://www.sota2.com/github.com/dvlab-research/LISA>)

Recorded evaluation configuration: {"VLM Version":"Llama2 13B","Train. Free":false}. This record does not assert independent reproduction.

### LISA++

gIoU: 42.3. Result ID: 6a0d72c9fbc373592c058343.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa71f41e209131cea53c42.md>)

Recorded evaluation configuration: {"VLM Version":"LLaVA1.5 7B","Train. Free":false}. This record does not assert independent reproduction.

### Seg-Zero

gIoU: 40.8. Result ID: 6a0d72c9fbc373592c058329.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa79b81e209131cea7f19c.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### SAM3 Agent

gIoU: 40.5. Result ID: 6a0d72c9fbc373592c05832e.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6923e69bd6b0dd334292f0ad.md>)

[Implementation](<https://github.com/facebookresearch/sam3>)

Recorded evaluation configuration: {"VLM Version":"Qwen3-VL 32B","Train. Free":true}. This record does not assert independent reproduction.

### SegAgent-SC

gIoU: 40.4. Result ID: 6a0d72c9fbc373592c058348.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa77631e209131cea72f5e.md>)

[Implementation](<https://github.com/aim-uofa/SegAgent>)

Recorded evaluation configuration: {"VLM Version":"Qwen-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### OVSeg

gIoU: 39.3. Result ID: 6a0d72c9fbc373592c05833f.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ef21e209131cea4311d.md>)

[Implementation](<https://jeff-liangf.github.io/projects/ovseg>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### Semantic-SAM†

gIoU: 39.2. Result ID: 6a0d72c9fbc373592c058324.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ffd1e209131cea485f4.md>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### SegAgent-SAM

gIoU: 38.5. Result ID: 6a0d72c9fbc373592c058349.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa77631e209131cea72f5e.md>)

[Implementation](<https://github.com/aim-uofa/SegAgent>)

Recorded evaluation configuration: {"VLM Version":"Qwen-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### RESAnything

gIoU: 38.2. Result ID: 6a0d72c9fbc373592c058346.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78691e209131cea78506.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":true}. This record does not assert independent reproduction.

### LISA

gIoU: 37.9. Result ID: 6a0d72c9fbc373592c058326.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa730a1e209131cea5a0b2.md>)

[Implementation](<https://www.sota2.com/github.com/dvlab-research/LISA>)

Recorded evaluation configuration: {"VLM Version":"Llama2 13B","Train. Free":false}. This record does not assert independent reproduction.

### SAM3

gIoU: 37.3. Result ID: 6a0d72c9fbc373592c058341.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6923e69bd6b0dd334292f0ad.md>)

[Implementation](<https://github.com/facebookresearch/sam3>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### CoReS

gIoU: 36.9. Result ID: 6a0d72c9fbc373592c058347.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa74131e209131cea5faa3.md>)

Recorded evaluation configuration: {"VLM Version":"LLaVA 7B","Train. Free":false}. This record does not assert independent reproduction.

### LISA++

gIoU: 35.2. Result ID: 6a0d72c9fbc373592c058327.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa71f41e209131cea53c42.md>)

Recorded evaluation configuration: {"VLM Version":"LLaVA1.5 7B","Train. Free":false}. This record does not assert independent reproduction.

### SegAgent-SC

gIoU: 34.6. Result ID: 6a0d72c9fbc373592c05832c.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa77631e209131cea72f5e.md>)

[Implementation](<https://github.com/aim-uofa/SegAgent>)

Recorded evaluation configuration: {"VLM Version":"Qwen-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### OVSeg

gIoU: 34.4. Result ID: 6a0d72c9fbc373592c058323.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ef21e209131cea4311d.md>)

[Implementation](<https://jeff-liangf.github.io/projects/ovseg>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### SAM3

gIoU: 34.1. Result ID: 6a0d72c9fbc373592c058325.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6923e69bd6b0dd334292f0ad.md>)

[Implementation](<https://github.com/facebookresearch/sam3>)

Recorded evaluation configuration: {"VLM Version":"N/A","Train. Free":"N/A"}. This record does not assert independent reproduction.

### RESAnything

gIoU: 33.1. Result ID: 6a0d72c9fbc373592c05832a.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78691e209131cea78506.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":true}. This record does not assert independent reproduction.

### SegAgent-SAM

gIoU: 33.1. Result ID: 6a0d72c9fbc373592c05832d.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa77631e209131cea72f5e.md>)

[Implementation](<https://github.com/aim-uofa/SegAgent>)

Recorded evaluation configuration: {"VLM Version":"Qwen-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### CoReS

gIoU: 33. Result ID: 6a0d72c9fbc373592c05832b.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa74131e209131cea5faa3.md>)

Recorded evaluation configuration: {"VLM Version":"LLaVA 7B","Train. Free":false}. This record does not assert independent reproduction.

### VisionReasoner

gIoU: 28.1. Result ID: 6a0d72c9fbc373592c058344.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7ba21e209131cea897a6.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

### VisionReasoner

gIoU: 27.2. Result ID: 6a0d72c9fbc373592c058328.

[Reporting paper](<https://www.sota2.com/research/paper/6a0d4046f984739ed6737a09.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7ba21e209131cea897a6.md>)

Recorded evaluation configuration: {"VLM Version":"Qwen2.5-VL 7B","Train. Free":false}. This record does not assert independent reproduction.

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