Guides
Sume guides: the API, Formats, agents, models, media tools and pricing, each answer dated and sourced.
Unit-test a Seedance 2.5 cost estimator against six billed amounts
Your own cost estimate for Seedance 2.5 should match what Sume bills to the micro-dollar. A Python assert test with six known amounts from 480p to 1080p 30 s.
Shorts voiceover: how many characters fill 15, 30, 45 and 60 s
Planning table from script length to seconds and TTS cost, with the 15 characters per second assumption labeled and a way to measure the real value.
YouTube Shorts narrator voice: cost by script length
What a Shorts narrator costs on Sume TTS 1.0 at $0.0475 per 1,000 characters, from a 300-character line to the 20,000-character request cap.
STT 1.0 or video inspect transcribe: two ways to transcribe on Sume
Both bill about $0.01 per audio minute on Sume, but STT takes an audio URL and video inspect takes a Sume clip. Limits of 10 minutes and 1,800 seconds.
EmbeddingGemma 2 audio embeddings or a transcript: what to index
EmbeddingGemma 2 embeds audio directly. Sume has no embedding endpoint, but STT gives text and word timings at $0.01 per minute for search.
YouTube Shorts AI slop: an originality checklist for your pipeline
People search 'youtube shorts ai slop'. A checklist of choices that make a generated Short yours, each tied to a Sume step and its cost.
Keep an AI-use ledger for every Short you upload (Python)
A small CSV ledger that records which Sume steps each Short used and what they cost, so a label decision never relies on memory. Code runs as is.
Travel itinerary reel: 4 destinations x 7 seconds on Seedance 2.5
Four 7-second 9:16 destination clips on Seedance 2.5 at 720p cost $4.05 each and $16.20 together on Sume. How to keep one look across all four.
Seedance 2.5 Fast API: Sume has no such id; prices of the four
Searching 'seedance 2.5 fast'? Sume's registry has seedance-2.5, seedance-2, seedance-2-fast and seedance-2-mini. Prices at 480p and 720p, 5 s, 9:16.
8x10 inch print from an AI image: dpi by Sume model at 4:5
An 8x10 print is a 4:5 crop. Pixels and dpi per Sume image model: Seedream 5 Lite 240, GPT Image 2.5 custom 300, Flux 2 Pro 154, with price per image.
Animatic then finals: 12 shots at 480p, 3 hero shots at 1080p
A 12-shot animatic at Seedance 2.5 480p costs $12.96; three 8-second 1080p hero finals add $34.14. Total plan priced on Sume, with the redo caveat.
Which Sume video model is fastest? The catalog's latency labels
Each Sume video model card carries a typical-latency label. Which rows are fast, medium or medium-slow, and what you pay for the faster ones.
Micro-drama episode length: 60, 90 or 180 seconds priced
Reels now allow 3 minutes. See what a 60, 90 and 180-second AI micro-drama episode costs in Wan 3.0 shots and Timeline minutes on Sume.
Seamless looping clip on Wan 3.0: same first and last frame, priced
Wan 3.0 takes a start and an end frame. Use one image for both for a loop: 5 seconds costs $0.32 at 480p, $0.63 at 720p, $1.25 at 1080p.
Add captions to a silent clip: cues instead of speech recognition
A clip with no speech fails caption_no_speech. Send cues with your own text and times to burn on-screen lines on silent or music-only video for $0.20.
Seedance 2 mini vs Wan 3.0: price per second at 480p and 720p
Wan 3.0 is $0.0625 a second at 480p and $0.125 at 720p. Seedance 2 mini works out near $0.088 and $0.189. Ten-second and 15-second costs side by side.
EmbeddingGemma 2 for video search: Sume has no embeddings endpoint
EmbeddingGemma 2 is reported as a 740M, Apache 2.0 multimodal embedder. Sume sells no embeddings API as of 2026-10-07; here is what it does sell for search.
ChatGPT Image 2.5 xhigh and max price grid, six sizes on Sume
What xhigh and max cost next to high on openai/gpt-image-2.5, from 1024 square to 4K: $0.117 and $0.264 at 1024x1024, $0.50 for max at 4K, with the default.
Korean captions: language ko does not choose the style
Setting language to ko on a caption job does not switch the style. The default is black-outline; a Latin style rejects Hangul with a 400. What to send instead.
How fresh are Sume's video prices? Rate-card dates per model
Every Sume video price traces to a dated provider rate card from June to September 2026. The date per model, and what 'subject to change' means for a budget.
90-second micro-drama episode: six H3 shots or three Wan shots, priced
Micro-dramas keep rising on TikTok, Reels and Shorts. A 90-second episode costs $6.98 on six H3 clips or $11.45 on three Wan 720p clips.
Go MaxBytesReader: cap a Sume webhook body at 1 MiB, 413 before HMAC
A webhook endpoint that reads an unbounded body invites memory abuse. A Go handler with http.MaxBytesReader, an HMAC check and a refusal of empty secrets.
Listing walkthrough from 8 photos: seven 4-second Wan 3.0 transitions
Eight room photos become seven Wan 3.0 first-to-last-frame transitions of 4 seconds. $3.50 at 720p plus $0.10 for the timeline render on Sume.
Wedding save-the-date: 12 seconds, 9:16, on Wan 3.0 references
A 12-second 9:16 Wan 3.0 save-the-date from up to 10 reference images costs $1.50 at 720p on Sume. Table of options.
ByteDance models on Sume: Seedance family and Seedream prices
Seedance 2.5, 2.0, Fast and Mini plus Seedream 5 Lite, 4.5 Edit and v4, with Sume prices, limits and the pick for each job. Read 2026-10-07.
Draft 20 Wan 3.0 clips at 480p, then finish the best six at 1080p
Twenty 5-second Wan 3.0 drafts at 480p cost $6.40; finishing six at 1080p adds $7.50. All twenty at 1080p cost $25.00.
AI UGC creator package: cost basis for 3, 5 or 10 videos
Selling AI UGC videos? One $0.95 avatar and 20-second product clips cost $12.59 for three, $20.35 for five and $39.75 for ten at standard quality.
YouTube Shorts: Seedance 2.5 audio on, off or detached, same price
Shorts editors now separate audio and video tracks. On Sume a 15-second Seedance 2.5 clip is $8.67 with or without audio; detach the sound for $0.01 per job.
How much more does higher resolution cost? Wan 4x, Omni 10x, Kling 1x
Resolution multipliers on Sume's catalog: Wan 3.0 480p to 1080p is 4x, Omni Flash 360p to 4K is 10x, Kling 3 is flat across 720p and 1080p.
Charity appeal film: 3 versions of 30 seconds, 720p vs 480p
Three 30-second 16:9 versions of an appeal film cost $52.02 at 720p and $24.21 at 480p on Seedance 2.5 on Sume. How to pick which to test first.
curl -d @file strips newlines: a Sume webhook test that fails 401
Signing a fixture file and sending it with curl -d changes the bytes. Use --data-binary to test a Sume webhook receiver. Both signatures shown.
3-minute Reel from API clips: calls and cost by Sume video model
Instagram Reels now run to 3 minutes. Calls needed for 180 s at each Sume video model's longest clip, with the per-job price at 720p or 768p vertical.
Lip sync AI music video: split a song into 5 to 14.8 second windows
MiniMax H3 Max lip sync accepts 5 to 14.8 seconds of audio per clip. Split a 60-second song into five 12-second ranges: about $6.24 at 768p on Sume.
Seedance 2.5 cost per kept clip: 1 to 4 takes per keeper
What a kept 10-second Seedance 2.5 clip really costs on Sume when you reroll: $5.78 at one take per keeper, $17.34 at three, plus a 480p scouting variant.
Real estate listing: 6 room clips on Seedance 2.5 vs Wan 3.0, priced
Six 5-second room clips cost $42.66 at 1080p on Seedance 2.5, $17.34 at 720p or $7.50 on Wan 3.0 at 1080p on Sume. When the pricier model earns it.
AI music generator API key: a Python script that polls and downloads
Use your SUME_API_KEY to generate a track with the Music Router, poll the job and read the audio URL. A 28-line Python script with the $0.125 price.
One webhook handler for Sume agent, Format and schedule runs
A single receiver can handle all three Sume run types: verify the HMAC over timestamp.body, dedupe on request_id, and branch on outcome (ok, degraded, error).
Run a weekly short video series on autopilot with a Sume schedule
A weekly short-video series needs a schedule with a cron expression, an IANA timezone and a spend cap, plus an optional API trigger. How to set it up on Sume.
Cut a long talk into short vertical clips with the Sume API
Turn one long recording into short clips on Sume: video-inspect for a sentence transcript, video-trim per range, video-captions to burn the words. Rates inside.
Recreate a winning ad's structure for your product with Sume
sume-recreate keeps a reference video's scene order, beat timing and caption rhythm, casts a new presenter and generates every shot fresh. How to call it.
Stop an AI video agent overspending: the four Sume spend gates
An unattended Sume agent can only spend what four gates allow: the wallet, a per-run cap, a schedule ceiling, and a Format cap. Values and failure codes inside.
Polling a Sume agent run: next_action values and backoff
Poll Sume runs by branching on next_action (poll_status, retry_later, none), using status_url and result_url, backing off on 429 and 503.
Sume Formats that return a product still instead of a video
Nine Sume catalog Formats are declared with text input and image output, from water-splash-hero to magazine-cover-campaign. Use them for 9:16 hero stills.
A Sume bulk queue item failed: read the child receipt first
A Sume queue item only says format_run_failed. Open the child run by run_id, compare spend to the cap, read output_error, then retry with previous_run_id.
Get a structured ad pack back from one Sume Agent Completion
Bind an output_schema to a Sume Agent Completion to get hook, caption, CTA and a video URL as named fields, with the strict-subset rules and failure modes.
Which video model fits a 6, 15 or 30 second ad slot on Sume?
Video Router duration limits differ by model: Seedance 2.5 and Wan 3.0 reach 30 seconds, Gemini Omni Flash 1.1 is 3 to 10, and most others stop at 15.
Sume product commercial vs cinematic studio vs beauty studio
Three Sume catalog Formats make premium 9:16 product films: product-commercial, cinematic-studio-commercial and beauty-studio. How to call each.
Localize one video ad into many languages with Sume batches
Two ways to localize one ad on Sume: a bulk Format batch with one item per language, or burn translated cue captions onto the existing video for $0.20 per job.