{"schema_version":"onlylabs.public_signal.v1","title":"StepFun Model: stepfun-ai/Step1X-Edit-v1p2-preview","description":"StepFun model signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/f5803a7b-1afd-466f-a663-c666c8361806","json_url":"https://onlylabs.fyi/signals/f5803a7b-1afd-466f-a663-c666c8361806/signal.json","generated_at":"2026-06-11T02:50:35.998834+00:00","org":{"slug":"stepfun","name":"StepFun","category":"neolab","category_label":"Neolab","dossier_url":"https://onlylabs.fyi/labs/stepfun","dossier_json_url":"https://onlylabs.fyi/labs/stepfun/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/f5803a7b-1afd-466f-a663-c666c8361806","signal_json":"https://onlylabs.fyi/signals/f5803a7b-1afd-466f-a663-c666c8361806/signal.json","source":"https://huggingface.co/stepfun-ai/Step1X-Edit-v1p2-preview","lab_dossier":"https://onlylabs.fyi/labs/stepfun","lab_dossier_json":"https://onlylabs.fyi/labs/stepfun/dossier.json","analysis":"https://onlylabs.fyi/analysis/stepfun","analysis_json":"https://onlylabs.fyi/analysis/stepfun/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/stepfun/evidence.json","category":"https://onlylabs.fyi/neolabs","category_json":"https://onlylabs.fyi/neolabs.json","category_feed":"https://onlylabs.fyi/neolabs/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json?category=neolab","topic":"https://onlylabs.fyi/topics/releases","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json?category=neolab","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml?category=neolab","data_business":null},"answer_pack":{"answer":"StepFun published stepfun-ai/Step1X-Edit-v1p2-preview. 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Performance on KRIS-Bench: | Models | Factual Knowledge ⬆️ | Conceptual Knowledge ⬆️ | Procedural Knowledge ⬆️ | Overall ⬆️ | |:------------:|:------------:|:------------:| :------------:|:------------:| | Step1X-Edit v1.1 | 53.05 | 54.34 | 44.66 | 51.59 | | Step1x-edit-v1p2-preview | 60.49 | 58.81 | 41.77 | 52.51 | | Step1x-edit-v1p2-preview (thinking) | 62.24 | 62.25 | 44.43 | 55.21| | Step1x-edit-v1p2-preview (thinking + reflection) | 62.94 | 61.82 | 44.08 | 55.64 | - Improved image editing quality and better instruction-following performance. Performance on GEdit-Bench: | Models | G_SC ⬆️ | G_PQ ⬆️ | G_O ⬆️ | Q_SC ⬆️ | Q_PQ ⬆️ | Q_O ⬆️ | |:------------:|:------------:|:------------:|..."},"evidence_pages":[{"url":"https://huggingface.co/stepfun-ai/Step1X-Edit-v1p2-preview/raw/main/README.md","final_url":"https://huggingface.co/stepfun-ai/Step1X-Edit-v1p2-preview/raw/main/README.md","title":"stepfun-ai/Step1X-Edit-v1p2-preview model card","http_status":200,"content_type":"text/plain; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T02:50:35.998834+00:00","bytes":4802,"raw_path":"0a152d8d17a03657e5857b48a66221a26f68d8503176f1156908a492a606d969.md","content_hash":"113af8cc29488402d17932492dc00dd87827b0d9848702d8efb53b3de412b9b3","excerpt_chars":1200,"truncated":true,"excerpt":"--- license: apache-2.0 language: - en - zh pipeline_tag: image-to-image library_name: diffusers --- 🔥🔥🔥 News!! * Sep 08, 2025: 👋 We release [step1x-edit-v1p2-preview](https://huggingface.co/stepfun-ai/Step1X-Edit-v1p2-preview), a new version of Step1X-Edit with reasoning edit ability and better performance (report to be released soon), featuring: - Native Reasoning Edit Model: Combines instruction reasoning with reflective correction to handle complex edits more accurately. Performance on KRIS-Bench: | Models | Factual Knowledge ⬆️ | Conceptual Knowledge ⬆️ | Procedural Knowledge ⬆️ | Overall ⬆️ | |:------------:|:------------:|:------------:| :------------:|:------------:| | Step1X-Edit v1.1 | 53.05 | 54.34 | 44.66 | 51.59 | | Step1x-edit-v1p2-preview | 60.49 | 58.81 | 41.77 | 52.51 | | Step1x-edit-v1p2-preview (thinking) | 62.24 | 62.25 | 44.43 | 55.21| | Step1x-edit-v1p2-preview (thinking + reflection) | 62.94 | 61.82 | 44.08 | 55.64 | - Improved image editing quality and better instruction-following performance. 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