{"slug": "show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models", "title": "Show HN: I benchmarked Seedance 2.5's 30s one-take video against 3 models", "summary": "A Hacker News user benchmarked ByteDance's Seedance 2.5 video generation model against three unnamed baseline models, finding that Seedance 2.5 produces superior texture detail, continuity, and editing control for single-take videos up to 30 seconds. The benchmark highlights Seedance 2.5's ability to maintain visual coherence across longer sequences and support multimodal references, with output options at 480P, 720P, and 1080P via VideoAll.ai.", "body_md": "### Normal Video Model (Baseline)\n\nA standard AI video baseline for the same old-book store scene.\n\nCreate cinematic AI videos up to 30 seconds with precise editing, multimodal references and production-ready texture control.\n\nSeedance 2.5 turns text, images, video and audio references into cinematic video with longer continuity, flexible direction and targeted editing. It is built for creators who want a final-quality result without rebuilding every shot from scratch.\n\nThe same old-book store scene reveals the difference between a baseline generation and Seedance 2.5 texture directions.\n\nClean wood, paper and fabric detail with reduced grain and warm window light.\n\nNatural wood grain, paper fibers, sweater yarn and documentary-like detail.\n\nStable 35 mm grain, floating dust and high-contrast retro cinematic color.\n\nBuild coherent scenes without stitching short clips together.\n\nContinue a story up to three minutes while keeping visual continuity.\n\nUse image, video and audio references to guide style, characters and world.\n\nChange a specific element without recreating the entire video.\n\nChoose 480P, 720P or 1080P for the balance of detail and credits you need.\n\nHold appearance, costume and props together across longer takes.\n\nProduce finer texture and more lifelike human movement.\n\nDirect pans, tracking shots, zooms and framing with a prompt.\n\nSeedance 2.5 supports 4 to 30 seconds in a single generation. You can extend a sequence through multiple rounds for longer storytelling.\n\nVideoAll.ai currently supports 480P, 720P and 1080P output for Seedance 2.5.\n\nSeedance 2.5 adds longer single-pass clips, richer reference control, precise editing and stronger texture and continuity controls.\n\nChoose Seedance 2.5 in Text to Video, Image to Video or Video to Video, add a prompt or references, choose your settings, then generate.", "url": "https://wpnews.pro/news/show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models", "canonical_source": "https://videoall.ai/seedance-2-5", "published_at": "2026-09-09 10:27:05+00:00", "updated_at": "2026-09-09 10:40:49.766489+00:00", "lang": "en", "topics": ["generative-ai", "ai-products", "ai-research"], "entities": ["ByteDance", "Seedance 2.5", "VideoAll.ai", "Hacker News"], "alternates": {"html": "https://wpnews.pro/news/show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models", "markdown": "https://wpnews.pro/news/show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models.md", "text": "https://wpnews.pro/news/show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models.txt", "jsonld": "https://wpnews.pro/news/show-hn-i-benchmarked-seedance-2-5-s-30s-one-take-video-against-3-models.jsonld"}}