# Semantic Segmentation on COCO-Stuff 171 classes (test) Source: [Semantic Segmentation on COCO-Stuff 171 classes (test)]() Collection index: [llms.txt]() Data updated: 2026-02-26T06:10:17.757Z Evaluation of Semantic Segmentation performance on the COCO-Stuff 171 classes test set, measured using mean Intersection over Union (mIoU). 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 | Semantic Segmentation | | Dataset (including any stated split) | COCO-Stuff 171 classes (test) | | Metric | mIoU | | Unit | PERCENT | | 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 - [mIoU](): Higher is better; unit: PERCENT. ## Recorded results | Method | mIoU | Result date | Report paper | | --- | --- | --- | --- | | PSPNet | 43.3 | Not recorded | 68fa6b331e209131cea2cd51 | | HRFormer-B + OCR | 43.3 | Not recorded | 68fa6b331e209131cea2cd51 | | HRNet-W48 + OCR | 40.5 | Not recorded | 68fa6b331e209131cea2cd51 | | CLIP + PACL | 38.8 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | OpenSeg | 28.6 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | GroupViT | 24.3 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | ViL-Seg | 16.4 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | ZS3Net | 9.6 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | SPNet | 8.7 | Not recorded | 68fa6e2d1e209131cea3e5f1 | | CLIP | 2.6 | Not recorded | 68fa6e2d1e209131cea3e5f1 | ### PSPNet mIoU: 43.3. Result ID: 698e707affc3901de09d9b5f. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"#params.":"68.0M","FLOPs":"1028.8G","Multi-scale testing":"true","Extra pre-training on ADE20K":"false"}. This record does not assert independent reproduction. ### HRFormer-B + OCR mIoU: 43.3. Result ID: 698e707affc3901de09d9b61. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"#params.":"56.2M","FLOPs":"1119.9G","Multi-scale testing":"true","Extra pre-training on ADE20K":"false"}. This record does not assert independent reproduction. ### HRNet-W48 + OCR mIoU: 40.5. Result ID: 698e707affc3901de09d9b60. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"#params.":"74.5M","FLOPs":"924.7G","Multi-scale testing":"true","Extra pre-training on ADE20K":"false"}. This record does not assert independent reproduction. ### CLIP + PACL mIoU: 38.8. Result ID: 6990084a3a6c314849fd9e18. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Encoder":"ViT-B/16","External Training Set":"GCC3M \[44\] + GCC12M \[6\] + YFCC15M \[41,46\]","Annotation Constraint":"No","Mask Constraint":"No"}. This record does not assert independent reproduction. ### OpenSeg mIoU: 28.6. Result ID: 6990084a3a6c314849fd9e14. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Encoder":"EfficientNet-B7","External Training Set":"COCO \[9\] + Loc. Narr. \[40\]","Annotation Constraint":"Yes","Mask Constraint":"No"}. This record does not assert independent reproduction. ### GroupViT mIoU: 24.3. Result ID: 6990084a3a6c314849fd9e16. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"Encoder":"ViT-S/16","External Training Set":"GCC12M \[6\] + YFCC15M \[41,46\]","Annotation Constraint":"No","Mask Constraint":"No"}. This record does not assert independent reproduction. ### ViL-Seg mIoU: 16.4. Result ID: 6990084a3a6c314849fd9e15. [Reporting paper]() [Method origin paper]() Recorded evaluation configuration: {"Encoder":"ViT-B/16","External Training Set":"GCC12M \[6\]","Annotation Constraint":"No","Mask Constraint":"No"}. This record does not assert independent reproduction. ### ZS3Net mIoU: 9.6. Result ID: 6990084a3a6c314849fd9e13. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"Encoder":"ResNet-101","External Training Set":"None","Annotation Constraint":"Yes","Mask Constraint":"No"}. This record does not assert independent reproduction. ### SPNet mIoU: 8.7. Result ID: 6990084a3a6c314849fd9e12. [Reporting paper]() Recorded evaluation configuration: {"Encoder":"ResNet-101","External Training Set":"None","Annotation Constraint":"No","Mask Constraint":"Yes"}. This record does not assert independent reproduction. ### CLIP mIoU: 2.6. Result ID: 6990084a3a6c314849fd9e17. [Reporting paper]() [Method origin paper]() [Implementation]() Recorded evaluation configuration: {"Encoder":"ViT-B/16","External Training Set":"WIT-400M \[41\]","Annotation Constraint":"No","Mask Constraint":"No"}. This record does not assert independent reproduction. Page 1 of 1. This is an index page, not the full collection.