Guides
Sume guides: the API, Formats, agents, models, media tools and pricing, each answer dated and sourced.
Moroccan Arabic speech to text: open-source Voxtral model vs Sume STT
A Moroccan open-source stack pairs language ID with Voxtral ASR for dialect code-switching. What Sume STT offers for Arabic audio, and what it lacks.
Transcribe 100 ten-minute clips: Scribe v2, gpt-transcribe, MAI, Sume
1,000 minutes of audio costs about $3.67 on Scribe v2 list, $4.50 on gpt-transcribe, $9 on MAI intro pricing, and $10 on Sume STT. The sums and the caveats.
Fireflies Talk dictation vs transcribing a recorded file by API
Fireflies Talk is free, unlimited desktop dictation. A recorded file needs a different tool. How to tell which you need, and what Sume STT costs for the file.
Does dictation audio leave your device? Fireflies, Phonon-2, Sume
Fireflies Talk keeps finished dictations local but sends audio to its STT provider. Phonon-2 runs on device. Sume STT is hosted. A sourced privacy comparison.
Phonon-2 (164 MB, English) or hosted Sume STT for a 10-minute file?
Phonon-2 is a free 164 MB English-only on-device model. Sume STT is hosted, multilingual, about 1 cent a minute. When each fits, with sourced numbers.
JSON2Video credits per second and 4K at 4x vs Sume Timeline
JSON2Video deducts one credit per video second and four times that for 4K. Sume Timeline charges $0.10 per rounded output minute. What a minute costs on each.
Placid 1 credit and Bannerbear 2 per video second vs Sume
Placid charges one credit per second of video and Bannerbear two per second of animation. Sume Timeline charges $0.10 per output minute. Convert them.
Inworld buys Ultravox, voices move to TTS-2: pin voice and model IDs
Inworld's Ultravox deal moves built-in voices to Realtime TTS-2 at no extra cost. Why to pin voice and model ids wherever you generate speech.
Cartesia sonic-3-latest and sonic-3-preview aliases: fix model strings
Cartesia lists sonic-3-latest and sonic-3-preview as deprecated aliases. What each maps to, which ids Sume's TTS Router accepts, and a safe migration.
TypeScript 7.0.2 with @sume-com/sdk 0.2.0: the tsconfig that compiles
We compiled a Sume SDK 0.2.0 job-status call with TypeScript 7.0.2. It needs nodenext resolution, types set to node and a module-type package.json.
npm audit signatures on @sume-com/sdk 0.2.0: what it proves, what not
Run npm audit signatures on @sume-com/sdk 0.2.0 before deploy. It checks the registry signature; the registry lists no provenance attestation for this version.
MCP C# SDK 2.0 for a .NET client: check the protocol header with Sume
The C# MCP SDK 2.0 targets the 2026-07-28 spec and keeps 1.x APIs compiling. What to test before pointing a .NET client at Sume, which lists 2025 versions.
Lambda get_remaining_time_in_millis: stop polling a Sume job in time
A Lambda that polls a Sume job should check get_remaining_time_in_millis before each sleep and return the job id so a later invocation can resume. Python.
Hedra's developer API is in private beta; the Sume routes open to call
Hedra lists its developer API as a private beta. Sume documents its avatar routes publicly: lip sync, Fabric, talking video, motion control. Routes and limits.
Bun 1.4.2 fixes an AsyncLocalStorage leak: per-request Sume keys
Bun 1.4.2 fixes an AsyncLocalStorage leak from 1.4.1. Carry a per-request Sume Idempotency-Key in the store, and check your Bun version first.
FLUX 3 Image is on BFL's page: which FLUX id does Sume call?
BFL lists FLUX 3 Image, FLUX.2 Max and Klein. Sume's image router calls FLUX.2 pro and flex. Ids, prices at $0.0375 and $0.0625, ratios and edit limits.
Vidu Q4 Preview aspect ratios vs Sume video rows: who offers 21:9, 4:3
Vidu Q4 reference-to-video lists 1:1, 9:16, 16:9, 3:4 and 4:3. On Sume Seedance and H3 add 21:9, Kling 3 has three ratios, and Omni only two. No row lists 4:5.
Timeline render of 61 seconds bills 2 minutes: trim 1 s, pay half
Sume's timeline render is $0.10 per started output minute: a 61-second video costs $0.20, a 60-second one $0.10. Table from 6 s to 10 min, with the arithmetic.
A 340-product catalog: four Sume bulk queues of 100, 100, 100 and 40
A bulk queue holds 1 to 100 items, so 340 product videos need four queues. Split the list, key each queue, and remember workspace concurrency still applies.
Next.js 16.4 Cache Components: keep Sume job polls out of use cache
Next.js 16.4 enables Cache Components in new apps. We built a Sume status route both ways: a plain GET handler stayed live, a use cache helper froze one answer.
Five Sume image models are text-only. What to use with a photo
Soul, Imagen 4 Fast and Ultra, Recraft V4 and Qwen Image Max take no reference images on Sume. Price and ratio of each, plus the cheapest edit-capable swap.
Codex background tasks keep their turn's permissions: paid Sume calls
Codex 0.161.0 background tasks retain the permissions of the turn that started them. What that means for a Sume render started from a background task.
Sume 429: retry-after header first, then the body field, then backoff
How long to wait after a Sume 429? Use the retry-after header, then error.retry_after_seconds, then jittered backoff. A Python stdlib function with checks.
Vidu Q4 Preview takes 3 audio references: which Sume rows take audio
Vidu Q4 Preview accepts up to 3 mp3 voice references of 3 to 12 s. On Sume, Seedance 2.x, Wan 3.0 and the MiniMax H3 rows take audio references; Omni does not.
Vidu Q4 Preview result URLs last 24 hours: save the file the same day
Vidu says Q4 Preview output URLs stay valid for 24 hours. Copy the file the day you render it, and see what Sume documents about its job result URL.
YouTube Shorts: 3 minutes at 1080p, rendered as 180 s on Sume
YouTube's help page says Shorts run up to 3 minutes at up to 1080p. A 180-second Sume Timeline render bills 3 minutes at $0.10, so $0.30. Settings inside.
Clock changes vs clock drift: what breaks Sume webhook checks
Sume webhook timestamps are Unix seconds, so time zone changes cannot break the 5-minute replay check; a drifting server clock can. A check to tell them apart.
Kling Image 3.0 lists native 4K: Sume's image resolution tiers
Kling's page lists Kling Image 3.0 with native 4K. Sume's image API takes resolution 512, 1K, 2K or 4K per model; check the catalog before asking for 4K.
Vidu @subject tags vs Sume Omni <IMAGE_REF_0> reference tokens
Vidu Q4 reference prompts use @[subject_name]. On Sume only Gemini Omni Flash 1.1 documents prompt tokens: <IMAGE_REF_0>, <VIDEO_REF_0>.
Meta's video from static assets: what to prepare in Sume first
Meta made Advantage+ video generation from static assets generally available on Oct 6. What to generate in Sume first, and what stays inside Meta's tools.
Codex account-scoped MCP grant cleanup and Sume's 1-hour token
Codex 0.161.0 adds account-scoped grant cleanup for enterprise MCP authentication. How that sits with Sume's one-hour OAuth token and its revoke endpoint.
Course sale avatar clip in five aspect ratios: five Sume calls
One course-sale script, five aspect ratios: avatar talking-video takes 1:1, 3:4, 9:16, 4:3 and 16:9 per call at 720p, 4 to 60 seconds. Plan five calls, not one.
Allergen line on a holiday menu video: burn it in with caption cues
Add a fixed allergen and price line to a silent holiday menu clip with video-captions cues. No speech-to-text runs, and Sume does not check the allergen text.
LinkedIn video ad length: trim a 90-second cut to 30 s with Sume
LinkedIn allows 3 seconds to 30 minutes and recommends 15 to 30 seconds. Trim a longer cut with Sume video trim at $0.02 a job, then check size before upload.
Amazon Sponsored Brands video: cut a 20-second window with Sume trim
Amazon lists 6 to 45 seconds for Sponsored Brands video and prefers 20 or less. Use Sume video trim to cut an exact range from a longer clip for $0.02 a job.
Vidu Q4 Preview has a seed field; Sume video models reject seed
Vidu Q4 Preview image-to-video takes a custom seed. Sume video models report seed false and return 400 unsupported_parameter if you send one.
Veo 3.1 object insert and remove vs Sume's Omni video edit
Google lists object insert and removal in Veo 3.1. Sume has no Veo row; its edit mode is Gemini Omni Flash 1.1 with video_url on Video Router.
Synthesia dubbing at 80 credits a minute vs a Sume lip-sync chain
Synthesia lists dubbing with lip-sync at 80 credits a minute. A 10-minute dub on Sume chains audio detach, TTS and lip-sync segments. Costs by step.
Vidu Q4 Preview renders 4K for 16 s; on Sume only Omni lists 4K
Vidu Q4 Preview lists 540p to 4K with 10-bit colour. On Sume only Gemini Omni Flash 1.1 lists 4K, for 3 to 10 s at $0.375 a second.
Runway Characters is real-time; Sume Avatar video is a 4-60 s job
Runway Characters makes a real-time conversational video agent from one image. Sume Avatar 1.0 renders a scripted talking video of 4 to 60 seconds.
Sume webhook signature fails: check the secret fingerprint first
When a Sume webhook signature will not verify, compare the 12-character secret fingerprint header before you debug the HMAC. Includes a Python verifier.
Airtable keeps run history 2 weeks on Free: store your Sume receipts
Airtable run history lasts 2 weeks on Free, 3 years on Enterprise. Save the Sume run id and output URL in the record so a holiday audit does not depend on it.
Seedream 5.0 Lite 'online search': not a Sume image parameter
ByteDance says Seedream 5.0 Lite can use online search. Sume's seedream-5-lite row has no search field. What the row offers: ratios, 10 references, $0.04375.
Adobe's Cyber 5 forecast: plan five daily Sume bulk queues
Adobe projects $47.5B for Cyber 5, 17.3% of holiday online sales. Map the five days to five Sume bulk queues with one idempotency key each and a cap per item.
Vidu Q4 audio on or off vs Sume generate_audio by video row
Vidu Q4 Preview makes sound with the picture. On Sume, Kling 3 charges more with audio on; Omni and H3 always make audio, and Omni rejects generate_audio false.
Hedra Omnia: one image plus audio, and Sume's lip-sync route
Hedra lists Omnia as full-body animation from one image and audio. Sume's H3 Max lip-sync route also takes a still and audio. Inputs and price compared.
Synthesia Pro's 6,000 to 48,000 credits in minutes of dubbing
Synthesia's Oct 1 plans list Pro at 6,000 credits and 12,000 to 48,000 on 2x to 8x tiers. At listed rates that is 75 to 600 minutes of lip-sync dubbing.
Zapier Catch Hook URL is the same in test and live: test Sume safely
Zapier's Catch Hook URL does not change between test and live. Use Sume's webhook.test delivery to check the Zap before a real run sends a real result into it.