Guides
Sume guides: the API, Formats, agents, models, media tools and pricing, each answer dated and sourced.
300x1200 half-page ad image: it is exactly 1:4, so request 1:4
A 300x1200 slot is 1:4. Nano Banana 2.1 lists 1:4 on Sume, from $0.075 at 0.5K to $0.20 at 4K per image. Request body, crop math for 160x600, and gotchas.
Animatic on Wan 3.0: six 5 s shots, approve, redo, upgrade
Six 5-second Wan 3.0 shots at 480p cost $1.875 in total, the same as one 30-second job. Split by shot so each frame can be approved alone.
Transcribe the first 60 seconds of 500 support recordings
500 screen-recorded support sessions: detach seconds 0 to 60 ($5.00), then STT 60 s each ($5.00). Total $10.00 at $0.01 per job and per minute.
4:1 banner into a 1:4 skyscraper: regenerate instead of cropping
A crop from 4:1 to 1:4 keeps 6.25% of the width. Send the banner as an input_reference with aspect_ratio 1:4 on Nano Banana 2.1 instead: $0.10 at 1K on Sume.
Face swap API has no prompt or aspect_ratio: the three-field body
Sume's face swap beta takes three fields: avatar_handle, video_url and quality. No prompt or aspect_ratio exists. It reserves 15 seconds at the tier rate.
Cost per kept second: Omni 720p vs H3 Max 768p at 1 take in 3
Omni Flash 720p is $0.125 a second and H3 Max 768p is $0.10. Keep one take in three and a kept second costs $0.375 or $0.30 on Sume. Break-even math inside.
Printable 2x8 inch bookmark is 1:4: cost of 6 to 24 designs
A 2x8 in bookmark is 1:4, or 600x2400 px at 300 dpi. Generate it directly with Nano Banana 2.1 on Sume: $0.15 at 2K, $0.20 at 4K per design. Costs for 1, 6, 24.
Python clip planner for a Short: split any length into model jobs
A short Python function splits a Short's length into equal whole-second jobs within each Sume video model's min and max, then prices them with Timeline.
Where Sume documents plans, wallet and rates: which page answers what
Eight billing questions mapped to the docs page that answers each: the wallet, top-ups, list x 1.25, plan concurrency, 402 vs 429 and refunds, read 2026-10-09.
Poster motion: Seedance 2.5 at 3:4 costs 0.6% more than 9:16 at 720p
At 14 seconds, a 3:4 Seedance 2.5 clip is $0.05 dearer than 9:16 at 720p. Full 480p/720p/1080p table from the Sume price tool.
1080p per-second vs per-clip at 7, 13 and 21 seconds: who accepts each
At 1080p a 7-second clip fits five Sume models, a 13-second clip four, a 21-second clip only Wan 3.0 and Seedance 2.5. Per-second and per-clip prices for each.
Seven pre-flight checks before an Omni, H3 or Recast job
Duration, resolution, ratio, edit conflicts, reference counts, refused fields and URLs: seven per-model checks that catch a refused Sume video request.
Cancel 16 of 20 queued Seedance 2.5 clips: what you keep
Twenty 10-second Seedance 2.5 clips reserve $115.56. Cancel the 16 still queued and $92.448 is released; the 4 running clips complete and cost $23.112.
curl -w http_code: branch a Sume video submit in bash on 202, 402, 429
A bash submit that saves the body, reads the HTTP code with curl -w and branches on 202, 402, 429 and 5xx. Three Wan 3.0 payloads cost $1.875, $3.75 and $7.50.
Vertical recipe short on Wan 3.0: 16 s with a plated-dish last frame
A 16-second 9:16 Wan 3.0 recipe clip costs $1.00 at 480p, $2.00 at 720p and $4.00 at 1080p on Sume, and the vertical ratio does not change the price.
32:9 super ultrawide wallpaper from a 4:1 image: crop 11% of width
32:9 is 3.56:1, between GPT Image 2.5's 3:1 cap and Nano Banana 2.1's 4:1. Generate 4:1 on Sume at $0.20 for 4K and keep 88.9% of the width. Request and math.
Duration dropdown from supported_durations: 27, 29 and 8 choices
Seedance 2.5 offers 27 lengths, Wan 3.0 29, Omni Flash 1.1 8. Map supported_durations to options in TypeScript, with the price of the longest option.
Spelling bee: 200 word-pronunciation clips on Sume TTS, one job each
200 words of about 12 characters each cost $0.1140 on Sume TTS as 200 jobs, $0.000570 each. One 2,400-character job is $0.1140 but gives one file.
Animate a mascot from one image: H3 start frame or Omni reference
A mascot clip of 10 seconds costs $0.75 as an H3 start frame at 768p, or $1.25 as an Omni reference image at 720p on Sume. The two bodies and the difference.
Poll every 2 s or 30 s? Reads per 20-minute video job on Free and Pro
Polling a Sume video job every 2 s is 600 reads in 20 minutes; every 30 s is 40. Share of the read budget on Free and Pro, with a Python check.
Cancel a queued Sume video job: refund rules and the 409 after start
A queued Sume job can be canceled before it starts; after that cancel returns 409 job_generation_already_started. What is held, with a 30-second example.
Resume polling Sume video jobs after a restart with a sqlite ledger
Write the job id and Idempotency-Key to sqlite before anything else can crash, then resume polling open jobs on start. Python standard library only.
30-clip storyboard agent: which Sume plan accepts all jobs at once?
If an agent submits 30 separate generation jobs, only Startup (48 accepted) and above take them all at once; Pro (24) needs two waves of 18 and 12.
Edit an existing clip with Gemini Omni Flash 1.1: video_url on Sume
Sume exposes Omni video edit mode through the Video Router video_url field: the prompt is the instruction, resolution defaults to 720p, no duration.
ffprobe check for Gemini Omni reference videos: 3 files, 3 s each
Before sending reference videos to Sume's gemini-omni-flash-1.1, check with ffprobe that you have one to three files and each is 3.0 s or shorter. Bash script.
Cheapest 12-second AI video at 720p-class on Sume, five models ranked
For a 12-second clip at about 720p, MiniMax H3 at 768p is cheapest on Sume at $0.90, then H3 Max $1.20, Wan 3.0 $1.50, Seedance 2.0 $4.54, Seedance 2.5 $6.93.
Cheapest AI video API per second: eight listed prices, sorted
The lowest per-second prices on fal, Runway, Google, Replicate and Sume, read 2026-10-09, from $0.025 to $0.09, with which ones Sume actually lists.
One ledger for FLUX.3 credits and Sume USD cost with Python Decimal
BFL bills FLUX.3 in credits at $0.01 each; Sume reports usage.cost in USD. A Decimal ledger puts both on one scale: $0.100 + $0.041 + $0.15 = $0.291.
Hosted Sume MCP token hygiene: 5 rules for agent credentials
Five Sume credential rules: an OAuth token is not an API key, stays out of CLI config and prompts, never goes to other providers; rotate exposed keys.
Remote MCP with an API key: x-api-key or Bearer on Sume?
Sume's hosted MCP accepts a key as Authorization: Bearer or as x-api-key. Both see the full tool set; writes and paid calls still need an idempotency_key.
GPT Image 2.5 at 1024px: xhigh is 3,122 output tokens, max is 7,024
Sume's docs give GPT Image 2.5 output estimates at 1024x1024: xhigh $0.09366, max $0.21072 at $30 per million tokens, i.e. 3,122 and 7,024 tokens.
GPT Image 2.5 quality auto reserves max: set quality yourself on Sume
On Sume, GPT Image 2.5 quality auto reserves max. At 1024px the max output estimate is $0.2634 with margin versus a $0.02475 low row. Set quality explicitly.
Runway API vs Sume: six video models, price ratio per second
Runway bills credits at $0.01. Six of its API models have a Sume id. Sume's price is 0.75x to 1.93x Runway's per second; the table gives each ratio.
HEVC phone clip for LinkedIn: exact trim re-encodes, keyframe copies
LinkedIn lists H.264 or VP8. Sume's exact trim re-encodes to libx264, while keyframe trim copies the stream, so a phone HEVC source stays HEVC with keyframe.
Timeline audio mp3 adds padding at every edge: keep wav to rejoin
Sume timeline audio outputs wav (default, sample-exact) or mp3, which adds priming padding at each edge. Re-joined mp3 parts leave gaps.
Replicate FLUX 1.1 Pro vs Sume flux-2-pro: a 250-image refresh
Replicate lists FLUX 1.1 Pro at $0.04 per image. Sume's flux-2-pro is $0.0375. For 250 images that is $10.00 against $9.375; FLUX Schnell is $0.003.
Sora API replacement: four async video APIs and their job shapes
OpenAI's Videos API shut down 2026-09-24 with no replacement listed. OpenRouter, Luma, Runway and Sume all use submit-poll-download; here is each shape.
nano-banana-2 still works but runs as 2.1: check the stored job id
Sume retired Nano Banana 2: google/nano-banana-2 runs as Nano Banana 2.1 and the job stores the 2.1 id. A Python check and what you pay.
One square size for TikTok and LinkedIn ads: 640x640 to 1920x1920
TikTok's square minimum is 640x640 and LinkedIn's maximum is 1920x1920. A 1080x1080 render clears both; 600x600 fails TikTok and 2160x2160 fails LinkedIn.
Video inspect transcribe: no duration hint reserves 1 minute
Sume video inspect with transcribe true bills $0.01 per audio minute. With no duration_seconds it reserves 1 minute; the hint maxes at 600 s (10 min = $0.10).
10-minute ad at 8 Mbps is 600 MB: over TikTok and LinkedIn caps
8 Mbps for 600 seconds is 600 MB. That exceeds TikTok's and LinkedIn's 500 MB caps but fits Pinterest's 2 GB. Sume has no bitrate field, so shorten the cut.
MAI-Voice-2.1 emotion control vs Sume TTS emotion, speed and volume
MAI-Voice-2.1 lists emotion control. Sume TTS takes generation_config: emotion (1-64 chars), speed 0.6-1.5, volume 0.5-2. A three-take test costs 3 cents.
Runway wan3_prime is 40% above wan3; Sume lists one Wan 3.0 row
Runway lists wan3 at 10 credits a second and wan3_prime at 14. Sume lists wan-3.0 at $0.125 per second at 720p. A 10-second clip: $1.00, $1.40 and $1.25.
Agent run log allowlist: which Sume fields are safe to keep
Log request ids, job ids, status and sanitized media metadata from Sume agent runs; never log API keys, signed URLs, raw private media URLs or full transcripts.
Canceled and skipped Sume agent runs send no webhook: what to poll
A Sume run webhook fires only when a run completes or fails. Canceled and skipped runs send nothing, so your scheduler must read status_url for them.
Nano Banana 2.1, 1,000 images: Sume row vs Google's standard and batch
1,000 Nano Banana 2.1 images at 2K: $150 on Sume's row, $50.40 at Google's standard rate, $25.20 at Google's batch rate, per each page read 2026-10-09.
MCP authorization spec: 6 requirements vs what Sume documents
The MCP authorization spec asks for resource metadata, PKCE and a resource parameter. Here is what hosted Sume MCP documents for each, and what stays open.
Does the Kling motion control prompt change the movement? No
On Sume's Kling 3.0 Motion Control route the motion video drives all movement and the prompt only steers appearance. Fields, limits and $0.1575 per second.