GUARD

--- license: mit tags: - ai-generated-image-detection - deepfake-detection - stable-diffusion - genimage - image-classification library_name: pytorch --- # GUARD — GenImage-SD1.4 Controlled Detector Panel Checkpoints for the **GUARD** benchmark's controlled comparison: AI-generated-image detectors whose training fakes all come from a single, fixed generator — **Stable Diffusion v1.4**. This isolates the detection *method* from its training *data*: every detector below was trained (by us, or by its original authors) on SD1.4 output, so differences in benchmark performance reflect the architecture and training recipe, not the generator each detector happened to see. The panel covers **13 detector families** across all four GUARD taxonomy groups (spatial, frequency, hybrid/reconstruction, transformer/VLM) — all now final. ## Checkpoints | File | Detector | Family | Provenance | Status | |---|---|---|---|---| | `wang2020/genimage_sd14_best.pth` | CNNDetection | Spatial | retrained by us, official GenImage SD1.4 split | ✅ final (val AUC 0.99997) | | `corvi2023/genimage_sd14_best.pth` | Corvi et al. | Spatial | retrained by us, official GenImage SD1.4 split | ✅ final (val AUC 1.0000) | | `npr2024/genimage_sd14_best.pth` | NPR | Spatial | retrained by us, official GenImage SD1.4 split | ✅ final (val AUC 1.0000) | | `cavia2024/genimage_sd14_best.pth` | LaDeDa (Cavia et al.) | Spatial | retrained by us, official GenImage SD1.4 split | ✅ final (val AUC 0.9999) | | `freqnet/genimage_sd14_best.pth` | FreqNet | Frequency | retrained by us, official GenImage SD1.4 split | ✅ final (val AUC 0.9996) | | `spai/genimage_sd14_best.pth` | SPAI | Frequency | retrained by us (frozen MFM ViT-B/16 backbone; released ckpt trains on a non-SD1.4 corpus — SD1.4/1.3 appear only as held-out test generators in the original paper) | ✅ final (val AUC 0.9998) | | `ojha2023/genimage_sd14_best.pth` | UniversalFakeDetect | Transformer/VLM | retrained by us, official GenImage SD1.4 split (retried after an initial GPU-memory conflict during the panel run) | ✅ final (val AUC 0.9973) | | `d3/genimage_sd14_best.pth` | D³ | Hybrid | retrained by us (released ckpt trains on a broader merged UFD+GenImage pool; we retrain SD1.4-only) | ✅ final (val AUC 1.0000) | | `chen2024_convnext/genimage_sd14_released.pth` | DRCT-ConvNeXt | Hybrid | authors' released checkpoint — SD1.4/1.5 diffusion-reconstru...

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