Video inspect API: 24 stills max, so 2 fps covers only 12 seconds
Sume video inspect returns at most 24 stills per call and caps fps at 2. How to size frames.fps for a 60-second clip, plus fast versus precise seek.
Media tools
Sume media tools by API: trim, filter, captions, frames, inspect, speech-to-text, upscaling, background removal, transitions, and Timeline assembly.
Start with: Video editing API limits: Sume media tool caps in one table
Kling 3.0 Motion Control API: 7.2 s driver video bills 8 s, $1.26
Sume's Kling 3.0 Motion Control costs $0.1575 per second rounded up from the driving video, 1 to 30 seconds. Fields, orientation, and the cost table.
13 video slots in one render: strategy single is refused above 12
A Sume timeline render accepts 1 to 200 video slots, but render.strategy single is refused above 12. Use auto or chunked; the price stays $0.10 a minute.
Split a voice track into 20 files for 1 cent: timeline audio split
Sume timeline audio split cuts one audio file into up to 20 ranges in a single $0.01 job, with wav output by default. 20 separate jobs would cost $0.20.
Price badge over a 45-second clip: timeline compose overlay, $0.02
Put one still on top of one video with Sume timeline compose overlay: width_ratio, position, margin_ratio, the 300-second ceiling, and a flat $0.02.
Timeline refuses 9 chained fades: too_many_chained_transitions
Sume Timeline 1.0 refuses more than 8 adjacent fades with too_many_chained_transitions. How transitions are validated, and the hard-cut fix.
Rendered video judders: output_fps_resamples_sources and 24 to 30 fps
Why a Sume timeline render can stutter when output.fps differs from your clips, what the output_fps_resamples_sources warning means, and the fix: omit fps.
Timeline plan: 421 seconds of audio is 8 billable minutes, $0.80
How to price a Sume timeline render before you submit it: the free plan call, the ceil-to-minute rule, and why 421 seconds costs $0.80, not $0.70.
Cut a 30-minute recording into two 15-minute files: 2 trims, $0.04
Sume video trim accepts a 1,800-second source but returns at most 900 seconds per job. Two trims at $0.02 split a 30-minute file; the range rules explained.
Fast video cut API: precision keyframe and actual_start_seconds
Sume video trim has two modes. Keyframe copies the stream and can start a GOP early; exact re-encodes. Both cost $0.02. Re-base on actual_start_seconds.
Test a video dim first: video-filter check is free, encode is $0.02
Sume video filter has an unbilled check endpoint that runs the same validation as the encode. Try dim and crop programs for free, then pay $0.02 once.
Video upscale API: a 12-second clip is $0.108, the cap is 30 seconds
Sume Video Upscale 1.0 bills $0.009 per input second, up to 30 seconds ($0.27). Factor 1.1 to 4, three tiers, and a 5-second default reserve.
Talking photo greeting: 8 seconds on Fabric 720p plus voice-over cost
An 8-second talking-photo greeting on VEED Fabric 1.0 costs $1.50 at 720p or $0.80 at 480p, plus about $0.0114 of TTS for a 240-character line.
Meta's 4 GB video cap at Sume's 30-minute render limit: 17.8 Mbps
Meta ad video tops out at 4 GB. A 30-minute Sume Timeline render can average up to 17.8 Mbps and fit; a 15-minute Reels ad allows 35.6 Mbps. Table inside.
Native 1:1 AI video for a TikTok ad, or 9:16 plus a $0.02 crop?
TikTok's 1:1 ad minimum is 640x640 and Gemini Omni Flash 1.1 renders only 16:9 or 9:16. Generate vertical, crop with video filter for $0.02, at 720p.
One 45-second ad, three sizes: caption once ($0.40), not thrice
Captioning each of three renders costs $0.90 on Sume; captioning the 9:16 master once and cropping two renders is $0.40, if the crop keeps the words.
Trim the first 0.6 s off an avatar clip: exact vs keyframe, $0.02
Cut a lead-in off a 22-second Sume avatar video with video-trim: exact re-encode or keyframe copy, what actual_start_seconds means, and the total cost.
Library song capped at 90 s in a 3-minute Short: 90 seconds left bare
YouTube caps most Shorts Audio Library songs at 90 seconds in a 3-minute Short, some at 60 or 30. Uncovered time per cap, and how to score the rest on Sume.
Crop an avatar video to 1:1: video-filter fractions for every ratio
Exact x, y, width and height fractions that turn a 9:16, 3:4, 4:3 or 16:9 Sume avatar clip into a centered square with video-filter, $0.02 a job.
Dim an avatar clip to 0.45 for overlay text: run the free check first
Darken a Sume avatar video with video-filter dim 0.45, run the unbilled /check call first, then pay $0.02 for the encode. What dim does and what it refuses.
Lip sync an 11-second mascot line: H3 Max 480p, 768p, 1080p vs Fabric
An 11-second line on MiniMax H3 Max Lip Sync costs $0.6875 at 480p, $1.10 at 768p, $2.20 at 1080p; Fabric 720p is $2.0625.
18 hero images: cutout costs $0.405, upscale costs $3.60 on Sume
Sume's image upscale is $0.20 per image and RMBG is $0.0225, an 8.9x gap. For 18 hero images that is $3.60 versus $0.405, and the order of the steps matters.
Facebook Feed's 241-minute video ad limit vs Sume's 30-minute render
Facebook Feed video ads can run 241 minutes; Sume Timeline renders 30 minutes per job. Covering 241 minutes is nine jobs and $24.10 at the public rate.
Kling 3.0 Motion Control: a 13.2 s driver video bills 14 s, $2.205
Sume bills Kling 3.0 Motion Control at $0.1575 per output second, 1 to 30 s. A 13.2 s driver clip rounds up to 14 s, which is $2.205.
Meta lists Reels ads from 0 seconds; Sume's shortest trim is 0.2
Meta's Reels ad page lists lengths from 0 seconds, Feed from 1. Sume's shortest trim is 0.2 s and shortest Timeline render 1 s; shortest clip per model.
TikTok ad bitrate window: 0.516 to 6.67 Mbps for 10 minutes
TikTok wants at least 516 kbps and at most 500 MB. For a 10-minute ad that is a 38.7 MB floor and a 6.67 Mbps average ceiling. The math and what Sume controls.
Check an AI voiceover by transcribing it: a script diff for 4 cents
Run Sume STT on a finished TTS take and diff it against the script to catch misread numbers and names. 4 cents per 450-character line, TTS plus the check.
Instagram Reels borders and logos: crop them off with video filter
Instagram lists Reels with borders, logos or watermarks among those shown less. Crop a border off with Sume video filter, using fractions, and check it free.
LinkedIn Page video max ratio 2.4:1: crop a 32:9 recording
LinkedIn Pages accept video from 1:2.4 to 2.4:1 and up to 4096x2304. A 5120x1440 ultrawide capture fails both. Crop it with Sume video filter to fit.
MAI-Voice 24 kHz 160 kbps MP3 vs Sume TTS 44.1 kHz 128 kbps: mixing
Microsoft's MAI-Voice example saves 24 kHz 160 kbps mono MP3; Sume TTS defaults to 44.1 kHz 128 kbps MP3 or WAV. What the numbers mean for mixing and file size.
TikTok trending search: 10 or 50 results, both $0.10
A Sume trending-videos search is $0.10 per accepted call whatever the limit. In production the limit runs 1 to 50 with a default of 10. Fields and a curl.
Music from a still: image_url conditioning, still $0.125
The Music Router accepts an optional public HTTPS image_url to condition the track on a still. Request example, keeping a score consistent, fixed price.
Dim a background clip under text: video filter dim amounts
The Sume video-filter dim op multiplies luma by an amount between 0 and 1; black stays black and chroma is untouched. Amount table, request and the $0.02 price.
Trim and conform to 1080x1920 at 30 fps in one video-trim job
Video trim's output field re-encodes to a set width, height and 24/25/30/60 fps in the same $0.02 job, exact precision only. Request, ranges and refusal codes.
Join voiceover takes into one gapless wav: timeline audio concat
Timeline audio concat joins up to 20 hosted audio parts sample-exact into one reusable wav for $0.01 per job and returns segment offsets.
Half-banner video: a still stacked over a clip for $0.02
Sume timeline compose stacks one still and one video in a single frame for a flat $0.02 per job. Layout ratio, overlay mode, 300 s ceiling and a ready request.
Video trim caps: 1800 s in, 900 s out, and the 901 s refusal
Sume video-trim accepts a source up to 1800 seconds and an output up to 900 seconds. The refusal codes you get past either cap and how to split a long cut.
Transcribe a video in one call: video-inspect with sentence segments
Skip detach: video-inspect with transcribe true returns a transcript with words and sentence segments, at $0.01 per audio minute plus the inspect's compute.
Remove backgrounds from 500 product photos: RMBG API cost and code
Sume RMBG 1.0 removes a background for $0.0225 per image regardless of size. Batch cost for 50 to 5,000 photos, the request body and a Python loop.
Captions from a video's speech: $0.20 a job, no SRT needed
Sume's video-captions endpoint transcribes the speech and burns styled captions for $0.20 a job on clips up to 60 s. Optional script_text corrects the wording.
Audio detach limits: 1800 s source, 900 s output, wav or mp3
Sume audio detach turns one hosted video into a wav or mp3 for $0.01. Source up to 1800 s, output up to 900 s, with the range, channel and sample rate options.
Extract 6 thumbnail candidates from a clip with video-frames
Send POST /v1/video-frames with an at list of up to 24 timestamps and get durable image URLs at source size. Python polling example, formats and limits.
video-frames fps limit: 24 frames, fps up to 2, what it covers
Sume video-frames takes fps from just above 0 up to 2 and caps each call at 24 frames at mid-bin times. Table of sample times and the span 24 frames reach.
Is my clip ready for face swap? Preflight with reference ingest
Face swap wants a 4 to 15 second source with usable audio. Read the clip first with reference ingest purpose face_swap and check duration and audio.silent.
Video filter /check is free: validate 8 ops before you pay $0.02
POST /v1/video-filter/check runs the same validation as the encode and bills nothing. See what it catches, the 8-op limit, and when a valid program still fails.
Exact or keyframe video trim: which to pick and what changes
Sume video-trim defaults to a frame-accurate exact re-encode; keyframe is a stream copy that can start a GOP early. How to choose and re-base the times.
video-inspect vs video-frames: which returns the still you need
Video inspect gives a probe, 8 default stills at 768 px and optional STT for clips up to 1800 s; video frames gives exact stills at source size up to 300 s.
Trim before crop: how the 300 s filter limit sets the order
Video filter accepts sources up to 300 seconds while video trim accepts 1800. For a 20-minute clip, trim first, then crop: two jobs, $0.04.