Guides
Sume guides: the API, Formats, agents, models, media tools and pricing, each answer dated and sourced.
4K AI video API: which Sume models accept 4K and what a clip costs
Only Gemini Omni Flash 1.1 and MiniMax H3 accept 4K in Sume's Video Router. A 10-second Omni clip is $3.75; a 5-second H3 upscale is $1.00.
MiniMax H3 vs H3 Max: price per clip at 480p, 768p and 1080p on Sume
A 5-second clip costs 32 cents at 480p on both H3 and H3 Max on Sume; at 768p it is 38 cents on H3 and 50 on H3 Max. 1080p is H3 Max only at $1.00.
Does a reference video cost more on Seedance 2.5? Break-even at 22.5 s
Adding a reference video raises a short Seedance 2.5 quote but lowers a 30-second one. Sume's estimator prices it as 15 extra input seconds at 0.6x.
GPT Image 2.5 quality auto reserves max: avoid the price surprise
On Sume, GPT Image 2.5 with quality auto reserves max, and an omitted quality means high. At 1024x1024 xhigh and max cost $0.09366 and $0.21072 before input.
Transparent background AI image on Sume: GPT Image 2.5 field
Only the GPT Image 2.5 rows take background on Sume's image route. OpenAI says transparency needs png or webp output. A request and an alpha check in Python.
GPT Image 2.5 custom size: the pixel rules and the 1024x1536 call
GPT Image 2.5 on Sume takes custom pixels via image_size: multiples of 16, edge up to 3840, aspect up to 3:1. Check your size, then call it with Python.
What do 50 AI image cards cost at low, medium and high quality?
Fifty Ideogram 4.5 images cost $1.875 at low, $3.75 at medium and $13.75 at high by Sume's catalog line. Read usage.cost on each result to confirm.
GPT Image 2.5 mask_url on Sume: build the PNG mask with Pillow
mask_url works only on the GPT Image 2.5 rows and must be a public HTTPS link. OpenAI wants an alpha channel and a matching size. A Pillow script builds one.
Which AI video models charge the same for 720p and 1080p?
Google lists Veo 3.1 Standard at $0.40 a second for both 720p and 1080p, and Sume's Kling Video v3 Pro has one rate for both. Other models charge more at 1080p.
Gemini Omni 1.1 Flash 1080p and 4K price: upscales on Sume
Google says Omni 1.1 Flash renders 720p and offers 1080p and 4K as upscales. Here is what Google lists and what the Sume 10-second clip costs per tier.
4K AI video API price per second: Veo 3.1 vs H3 and Omni on Sume
Veo 3.1 Standard 4K is $0.60 a second and Fast is $0.30 on Google's page. Sume lists Omni 4K at $0.375 and an H3 4K upscale at $0.20. What each 4K means.
How much more does 4K AI video cost than 720p? Multiplier table
Veo 3.1 Fast 4K costs 3 times its 720p rate on Google's page, Omni on Sume is also 3 times, Veo Standard 1.5 times and Kling Video v3 Pro 1 times.
Cheapest AI video draft per second: Veo Lite vs Sume 360p and 480p
Veo 3.1 Lite 720p is $0.05 a second on Google's page. On Sume the lowest rates are $0.0375 for Omni at 360p and $0.0625 at 480p on Wan 3.0 and the H3 models.
Price labels on AI product photos: draw the text in code
AI image models can misplace text, per OpenAI's own guide. For exact prices, generate a clean product photo on Sume and add the label with Pillow instead.
Ideogram API image URLs expire: save the edit, and what Sume returns
Ideogram's docs say image URLs expire and to download what you keep. Sume returns a hosted signed URL; here is a download step that works for both.
Can AI image models spell a headline correctly? A pre-ship text check
Vendors say image models can render text but still miss. Use a short script to compare the wording you asked for with what a person typed back from the image.
How to turn an AI image into an og:image link preview in Python
Ideogram 4.5 on Sume makes a 2:1 image at 1K as 1440x720. A Pillow crop to your link-preview size, plus the og:image:alt tag Open Graph asks for.
Ideogram API 10 in-flight requests: how Sume queues image jobs instead
Ideogram's default limit is 10 in-flight requests. Sume accepts more jobs than it runs, by plan, and answers 429 queue_full only when the queue is full.
Nano Banana reference limits: Gemini slots vs Sume input_references
Google counts Nano Banana references by tier and by object versus character. Sume exposes one input_references range per row. How to read it and what to send.
How many images can I get per AI image request? Read n, don't guess
Sume's docs allow n up to 10 per call but say per-model ceilings are lower. Here is how to read each model's real n range from the catalog in one request.
Can I attach my order ID to an AI image job? Sume's metadata field
Sume's image request takes a metadata object stored on the job, not sent to the provider. Pair it with an Idempotency-Key and your own table in Python.
Seedance 2.5 reference-to-video: what Sume accepts per pass
ByteDance lists up to 30 images, 10 videos and 10 audio clips per pass for Seedance 2.5. Here is how that maps to Sume's seedance-2.5 reference types.
Seedance 2.5 API: Seed blog says soon, BytePlus says live
Two ByteDance pages disagree on Seedance 2.5 API access. Here is what each says, and the seedance-2.5 id that runs on Sume's video router today.
Seedance 2.5 vs 2.0: what changes in Sume's catalog rows
Seedance 2.5 runs 4-30 s on Sume while Seedance 2.0 stays at 4-15 s. Rates, resolutions and tiers for the five Seedance ids in one table.
Why is my Sume video quote rounded up to the cent? Compute it yourself
Sume bills list price x 1.25 and rounds each job up to a whole cent. That is why a $0.3125 Wan clip bills 32 cents. Python to reproduce any quote.
Luma Ultra cost per 1080p Ray3.2 clip by plan vs Sume H3 Max
Luma Ultra at $250 a month billed yearly makes a 5-second 1080p Ray3.2 clip about 67 cents; Plus makes it $1.00. Sume H3 Max is $1.00; volume decides.
MiniMax H3 Max 1080p: docs list 768P, Sume lists 1080p
MiniMax's own guide gives H3 Max 480P and 768P. Sume's minimax-h3-max row also lists 1080p. Here is the gap, and what the extra tier means for you.
MiniMax H3 open weights: 768p locally, 2K only hosted
MiniMax's open H3 Base checkpoints top out at 768p. The 2K tier needs a proprietary module. What that means if you want to self-host or call H3 through Sume.
AI avatar follow-up videos for stalled B2B deals: what they can do
Tavus cites Gartner on stalled B2B buying. A recorded avatar follow-up can restate one point, not answer questions. A 3-scene request and the cost by tier.
AI product demo avatar: live agent or recorded clip?
Tavus builds live demo agents that answer buyers; Sume renders a 4-60 second avatar clip with your product image. Where each fits, plus Sume per-second prices.
Add existing videos and playlists to a YouTube show with Add content
In Studio, Content, Shows, Add content takes existing videos or playlists into a show. Check what you already have, then fill the gaps with new renders.
Convert a YouTube Shorts playlist into a show with Add show features
In YouTube Studio, Options on a playlist offers Add show features, and every video lands in Season 1. What to fix first and how to prepare Shorts for it.
HR onboarding welcome video with an AI avatar: day-one clip
A 30-second welcome clip that lists the three things a new hire does on day one. Script size, cost per tier, and what must stay in text, not video.
How to split a training lesson into avatar clips under 60 seconds
Sume refuses avatar videos over 60 seconds. Split a 6-minute lesson by words, render each part, and stitch with Timeline 1.0. Word counts and cost by tier.
GPT Image 2.5 batch of 4 at 1920x1080: price by quality on Sume
Four GPT Image 2.5 images at 1920x1080 in one call cost 3 cents at low, 6 at medium, 20 at high, 36 at xhigh and 80 at max on Sume.
Omni scene extension on Sume: chain clips with a 3-second tail
Google's extension reads 10 seconds of prior context. Sume's Omni row takes video references of 3 seconds. Cut the tail with video-trim and chain clips by hand.
Gemini Omni extension only appends: how to add a lead-in clip
Google's Omni docs say extension adds to the end of a clip only. To get a clip before your footage, generate it separately and join on a Sume timeline.
Sume text to speech price ladder: 500 to 20,000 characters
Sume TTS bills 3 cents for 500 characters, 5 for 1,000, 24 for 5,000 and 95 for 20,000, the per-job cap. Longer scripts split into 20,000-character jobs.
MAI-Voice-2.1 vs Sume text to speech: cost per 1,000 characters
Sume TTS costs 4.75 cents per 1,000 characters before the per-job round-up. A tracker lists MAI-Voice-2.1 at $0.022 and Flash at $0.015, cheaper per character.
AI video generator for long videos: 30 seconds per pass, then assemble
ByteDance says Seedance 2.5 makes 30 seconds a pass and extends to minutes. On Sume, a video job tops out at 30 s; Timeline 1.0 joins clips to 1800 s.
AI video ad text in 12 languages: Wan 3.0 or burned-in captions?
Alibaba says Wan 3.0 renders text in 12 languages. Sume lists wan-3.0 at 2 to 30 s. When to let the model draw words and when to add captions yourself.
EU Article 50 AI avatar video disclosure checklist for marketers
Tavus says EU Article 50 has required disclosure of AI likenesses since 2 August 2026. A checklist of what to label on an avatar clip, with the Sume fields.
AI avatar for kids videos: made for kids and COPPA, what changes
Marking a video made for kids turns off comments, cards and personalized ads on YouTube. What COPPA covers, and how a Sume avatar clip fits a children audience.
Best AI avatar tool by job: marketing, training, live chat, scripted
Hedra ranks 10 avatar tools by job. Where a rendered, scripted avatar clip like Sume Avatar 1.0 sits on that map, and where it does not.
AI avatar objection handling clips for sales reps: 3 examples
Three short answer clips a rep can send after a buyer raises price, security or timing. Scripts sized by 2.8 words a second, the cost, and the review rule.
Ideogram enable_copyright_detection: no such flag on Sume, what to do
Ideogram's precise edit takes an enable_copyright_detection flag. Sume's image request has no such field, so the check moves into your own pipeline.
YouTube lip sync for auto dubs: what to prepare before you get access
YouTube is piloting lip sync on auto dubs. Prepare clean speech audio and a 5 to 14.8 second lip-synced clip workflow on Sume while you wait.
30-second ad sound bill: voiceover, music, render, captions
A 30-second ad's audio and finishing jobs on Sume cost about 45 cents at the public rates: one voiceover, one score, one render and one caption job.