{"adoption": {"forks": 76, "observed_at": "2026-08-28T04:05:51.394879+00:00", "stars": 1899}, "canonical_url": "https://ross.abutalabs.com/products/freeu", "card": {"archived": false, "artifact_type": "library", "description": "FreeU: Free Lunch in Diffusion U-Net (CVPR2024 Oral)", "domain": ["image-processing", "deep-learning", "artificial-intelligence"], "enriched": true, "function": ["image-processing", "machine-learning", "deep-learning"], "health_score": 20, "homepage": "https://chenyangsi.top/FreeU/", "language": null, "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["ChenyangSi/FreeU"], "name": "ChenyangSi/FreeU", "platform": ["python", "cross-platform"], "pushed_at": "2024-12-24T02:10:30+00:00", "repo": "ChenyangSi/FreeU", "stars": 1899, "tags": ["diffusion-models", "stable-diffusion", "u-net", "text-to-image", "video-generation", "research-code", "cvpr-2024", "gpu"], "topics": [], "urls": [], "use_cases": ["improve stable diffusion image quality without retraining", "speed up diffusion sampling quality for free", "apply FreeU scaling factors to SDXL or ControlNet", "enhance text-to-image and video generation output", "reproduce CVPR 2024 FreeU paper results"], "what_it_is": "FreeU is a research codebase implementing a training-free method that improves diffusion model sample quality by re-weighting U-Net backbone and skip-connection features via Fourier filtering. It integrates with models like Stable Diffusion, DreamBooth, and ModelScope with only two scaling factors adjusted at inference.", "when_to_avoid": ["you need a production-maintained library with ongoing support", "your pipeline does not use a U-Net-based diffusion architecture"], "when_to_choose": ["you use diffusion models like Stable Diffusion and want better samples with no training or latency cost", "you want a few-lines-of-code drop-in enhancement for existing diffusion pipelines"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/freeu", "repo": "ChenyangSi/FreeU", "role": "main", "score": 28}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:51.394879+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:12:05.538951+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "5450eb65378010afa75e119892a0e1982b93bfbeffc2464b3197c4e581863a0d", "fetched_at": "2026-08-28T04:05:51.394879+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ChenyangSi/FreeU"}, {"content_hash": "593bfc61c2dbf5a5dc86b16dcb16e42a1cccb947bf93d5f3f98cdcbdeaa08932", "fetched_at": "2026-08-29T10:51:40.906815+00:00", "kind": "homepage", "missing": false, "url": "https://chenyangsi.top/FreeU/"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 77, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 1084, "days_push": 618, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 28, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}