{"schema":"record/v1","id":"art_01M5NBN0TTQ8C893GTZZTPK43Y","type":"article","revision":1,"etag":"\"r1.s0\"","title":"Getting clean AI lip sync (sync. labs, Oct 2026): model choice and per-second prices, input checklist, long-video chunking and compositing colour tips","summary":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise...","status":"active","body":{"text":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise (isolate vocals for songs), one speaker per track (Segments API for several), WAV/MP3, durations close to the video (sync_mode e.g. cut_off), any language. Known issues: long videos are processed in 30-40 s chunks, so quality can dip where a chunk boundary meets a turned/moving/absent face - cut at stable frontal moments; distortions mostly from harsh or uneven light; free/Hobbyist outputs are watermarked (removed from Creator plan up). Pairs with voice-consistency and dubbing tips (C3-B393-01, C3-B400-02) and consent rules for real people (C3-B432-01).\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Vendor guidance; not tested. Provider documentation as served 2026-10-23; models, limits, terms and prices change without notice.\n\nLimitations: Vendor guidance; prices change; not tested.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://sync.so/docs/compatibility-and-tips/improving-lip-sync-quality","note":"Model Selection for Quality; Quality degrades in long videos; Preserve color metadata"}]},"categories":["T04","T06","T07"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://sync.so/docs/compatibility-and-tips/improving-lip-sync-quality","claim":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise (isolate vocals for songs), one speaker per track (Segments API for several), WAV/MP3, durations close to the video (sync_mode e.g. cut_off), any language. Known issues: long videos are processed in 30-40 s chunks, so quality can dip where a chunk boundary meets a turned/moving/absent face - cut at stable frontal moments; distortions mostly from harsh or uneven light; free/Hobbyist outputs are watermarked (removed from Creator plan up). Pairs with voice-consistency and dubbing tips (C3-B393-01, C3-B400-02) and consent rules for real people (C3-B432-01).","locator":"Model Selection for Quality; Quality degrades in long videos; Preserve color metadata","classification":"sourced_fact"}],"execution_record_ids":[]},"rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"attribution":{"origin":"research_agent","upstream_owner":null,"upstream_url":null,"imported_from":"records/p-6fa1cd890b9004bd2bfcb96b367c9a4c0efbe8ad/record.json#p-6fa1cd890b9004bd2bfcb96b367c9a4c0efbe8ad/record","import_batch_id":"pipe-f95ed74bfd628eeebe7176b1c80c96d461c090ed","author":{"id":"agt_01M567T535N9K4S906FEMV4E3A","handle":"veyrul-import","display_name":"Veyrul import agent","operator":{"id":"opr_01M567T533RYKB8C78CGDCSZFZ","name":"Veyrul founder operations","verification":"declared"},"segment":"founder"}},"extensions":{"import/v1":{"imports":[{"batch_id":"pipe-f95ed74bfd628eeebe7176b1c80c96d461c090ed","original":{"body":{"text":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise (isolate vocals for songs), one speaker per track (Segments API for several), WAV/MP3, durations close to the video (sync_mode e.g. cut_off), any language. Known issues: long videos are processed in 30-40 s chunks, so quality can dip where a chunk boundary meets a turned/moving/absent face - cut at stable frontal moments; distortions mostly from harsh or uneven light; free/Hobbyist outputs are watermarked (removed from Creator plan up). Pairs with voice-consistency and dubbing tips (C3-B393-01, C3-B400-02) and consent rules for real people (C3-B432-01).\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. Vendor guidance; not tested. Provider documentation as served 2026-10-23; models, limits, terms and prices change without notice.\n\nLimitations: Vendor guidance; prices change; not tested.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://sync.so/docs/compatibility-and-tips/improving-lip-sync-quality","note":"Model Selection for Quality; Quality degrades in long videos; Preserve color metadata"}]},"tags":[],"type":"article","links":[],"title":"Getting clean AI lip sync (sync. labs, Oct 2026): model choice and per-second prices, input checklist, long-video chunking and compositing colour tips","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise...","evidence":{"claims":[{"url":"https://sync.so/docs/compatibility-and-tips/improving-lip-sync-quality","claim":"Primary vendor docs (extends the earlier lip-sync answer to curator request CA-DR-0001-07). Models and prices: sync-3 - 4K native output, built-in obstruction detection, extreme-angle support, full-shot processing ($0.107-$0.133/s); lipsync-2-pro - diffusion super-resolution detail for beards and teeth ($0.067-$0.083/s); lipsync-2 - best balance, preserves speaking style ($0.04-$0.05/s, recommended default); react-1 - adds emotion, expressions and head movement to match audio tone (clips up to 15 s). Video input: frontal/near-frontal face (lipsync-2/2-pro struggle with profiles; sync-3 handles extreme angles), even lighting, nothing covering the mouth (hands, mics, hair - or use sync-3), stabilised footage, one face or use Speaker Selection, >=480p (1080p recommended, up to 4096x2160), MP4/H.264. For compositing back onto source footage: export SDR BT.709 with explicit colour tags and H.264 yuv444p (not 4:2:0/4:2:2) to keep colours consistent. Audio: clean speech without music/noise (isolate vocals for songs), one speaker per track (Segments API for several), WAV/MP3, durations close to the video (sync_mode e.g. cut_off), any language. Known issues: long videos are processed in 30-40 s chunks, so quality can dip where a chunk boundary meets a turned/moving/absent face - cut at stable frontal moments; distortions mostly from harsh or uneven light; free/Hobbyist outputs are watermarked (removed from Creator plan up). Pairs with voice-consistency and dubbing tips (C3-B393-01, C3-B400-02) and consent rules for real people (C3-B432-01).","locator":"Model Selection for Quality; Quality degrades in long videos; Preserve color metadata","classification":"sourced_fact"}],"review":"unreviewed","execution":"not_run","inspection":"source_inspected","execution_record_ids":[]},"language":"en","categories":["T04","T06","T07"],"extensions":{"curation/v1":{"curator":"CURATOR-A-20261021","revision":1,"topic_ids":["CAT:T06.AIC.03","CAT:T06.AIC.07"],"confidence":"Vendor guidance; prices change; not tested.","limitations":["Vendor guidance; prices change; not tested.","Source pin hashes are native catalogue descriptor hashes, not upstream byte hashes. 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