Guides
Sume guides: the API, Formats, agents, models, media tools and pricing, each answer dated and sourced.
fal error_type request_timeout: which Sume field to monitor
fal exposes error_type in the body and X-Fal-Error-Type as a header. Sume puts category, stage and code in the error body; the request id is also a header.
FastMCP client auth: pass the Sume API key as a string
In FastMCP, pass your Sume API key as a plain string to auth, with no Bearer prefix. The client adds the header; send only one credential.
FLUX 3 Action is a robot-control model, not an image model
FLUX 3 Action is an open-weight 7B world action model for robots. It predicts actions, not images, so it is no drop-in for the FLUX ids Sume serves.
FLUX 3 Image 4K can take minutes: poll, and the Sume 30 s wait
FLUX 3 Image at resolution 4k can take several minutes, so poll. Sume blocks up to 30 seconds, then returns 202 with a job envelope to poll.
FLUX 3 reference image aspect ratio: auto follows the first image
FLUX 3 Image defaults aspect_ratio to auto: the first reference sets the shape, or 1:1 with none. On Sume, omitting the field is not the same as auto.
FLUX 3 Image bounding boxes vs Sume masked edit: what each takes
FLUX 3 Image takes a JSON list of boxes at the end of the prompt. Sume's image edit takes a mask image: mask_image_url with image_urls. Differences, no overlap.
FLUX 3 Image grounding is on by default: web search and Sume
FLUX 3 Image grounding defaults to true and can search the web and images before generating. Sume lists no such field; pass references to set the target.
FLUX 3 Image edit API: no mode field, just add references
FLUX 3 Image has one endpoint and no mode field: add images to edit, restyle or combine. On Sume you send input_references to an edit-capable model.
FLUX 3 API polling: the Reasoning status and Sume job statuses
FLUX 3 Image polls through Pending, Reasoning, Generating and Ready, and stops on four terminal states. Map them to Sume's queued to completed statuses.
FLUX 3 Image result URL expires after 1 hour: what to store
FLUX 3 Image's result.sample is a signed URL that expires after 1 hour. Download it at once; Sume returns Sume-hosted signed URLs in data[].url instead.
FLUX 3 Image 10 reference images vs Sume's 1-10 image_urls
FLUX 3 Image takes up to ten references named by prompt position. Sume's image edit takes one to ten public image_urls, with no FLUX 3 id in the docs.
FLUX 3 Image API 422 unknown field vs Sume 400
FLUX 3 Image returns 422 for an unknown field, a blank prompt or a small reference. Sume returns 400 unsupported_parameter. Map the status codes in your client.
FLUX 3 x mimic: one backbone for video, audio and robot actions
BFL says FLUX 3 is one model trained jointly on images, video and audio, and FLUX-mimic adds robot actions. What that does and does not tell a media API user.
FLUX 3 video continuation caps at 15 s: extending a clip on Sume
BFL cut FLUX 3 video continuation (v2v) to 15 seconds on Aug 17; other modes stay at 20. Sume has no continuation mode: chain a last frame instead.
FLUX 3 Video 4K uhd (3840x2176) and which Sume video models do 4K
FLUX 3 Video's uhd resolution is 3840 x 2176 at 16:9. On Sume, a 4K request goes to a model whose supported_resolutions lists it; here is what the docs say.
Gemini 3.8 Live Extended Thinking: the id, and Sume's audio ids
gemini-3.8-live-extended-thinking is a Live API audio-to-audio model id. Sume has no live audio route; its audio ids are sume/music-auto and TTS Router ids.
Gemini 3.8 Live migration errors and Sume's request-response audio
Moving to gemini-3.8-live: thinking_level unsupported, async function calling by default, proactive audio always on. Where Sume's audio jobs fit instead.
Google Ads API v25.2 automated video crawl for Performance Max
Google Ads API v25.2 adds AutomatedVideoCrawlSetting with LANDING_PAGE, SOCIAL and YOUTUBE sources. What it sets, and how to supply your own video with Sume.
Google Ads GenerateCreatorInsights by YouTube handle vs Sume search
Google Ads API v25.2 lets GenerateCreatorInsights search by YouTube channel handles. Sume's influencer search finds candidates by niche first. Two steps.
GeneratePMaxDraftCampaign IMAGE_ENABLED_GENERATE_PMAX_NOT_SUPPORTED
image_enabled=true on GeneratePMaxDraftCampaign returns IMAGE_ENABLED_GENERATE_PMAX_NOT_SUPPORTED in Ads API v25.2. Leave it false and add your own images.
Goose MCP HTTP retries and Sume paid calls: reuse the key
When goose retries an MCP HTTP call to Sume, the same idempotency_key keeps a paid generate call a dedup, not a second job. Check status before resubmitting.
Grok Imagine 21:9 and 5:2 ratios vs Sume's Grok aspect list
xAI added 21:9 and 5:2 to Grok Imagine image on Aug 28. Sume's Grok list has 20:9 and 2:1 but neither of those two, so pick a listed ratio for banners.
HeyGen get video scenes API vs Sume video inspect stills
HeyGen's scenes endpoint returns a typed composition. Sume's video inspect returns probe facts and stills for one hosted clip, not typed scenes.
HeyGen liveavatar-gpt-live-demos: where Sume's avatar jobs start
HeyGen's liveavatar-gpt-live-demos repo is a real-time avatar starter. Sume renders avatar video as jobs: submit async, poll or webhook, then fetch the MP4.
Overlay a graphic on avatar video: Sume compose overlay step
HeyGen's demo fades a HyperFrames composition over a live avatar. On Sume, put one still over finished avatar footage with timeline compose operation overlay.
HeyGen create template via API: Sume has video_inputs, not templates
HeyGen now creates templates over the API and binds variables by element_id. Sume has no stored template object; send ordered video_inputs on each request.
HeyGen stale_edit_version 409 vs Sume idempotency_conflict
HeyGen returns 409 stale_edit_version when a template edit is out of date. Sume's 409 is idempotency_conflict: one key reused on a different payload.
Higgsfield's ChatGPT slash commands vs Sume's hosted MCP tools
Higgsfield's ChatGPT extension starts presets with slash commands. Sume's hosted MCP exposes tools; paid calls need an idempotency_key and wallet balance.
Genjutsu Restyle's 20+ styles vs Sume motion transfer inputs
Higgsfield Genjutsu Restyle picks from 20+ styles in its app. Sume's motion transfer takes a source video plus 1 to 8 reference images, with no style list.
Ideogram API 402 inflight_limit: fast vs slow queue, and Sume
Ideogram 4.5 returns 402 or 429 with reject_reason inflight_limit and a fast or slow queue. Sume queues jobs first, then returns 429 queue_full.
Ideogram 4.5 quality: very_low needs a source image
Ideogram 4.5 quality defaults to medium with source images and high without, and very_low needs sources. Sume's quality enum is catalog-gated.
Ideogram 4.5 size source: keep dimensions, and Sume aspect auto
Ideogram 4.5 size takes auto, source or WIDTHxHEIGHT; source needs source images. Sume's size is a tier shorthand; use aspect_ratio auto to match a reference.
Ideogram 4.5 edit images: 5 sources, first is edited, vs Sume
Ideogram 4.5 takes up to 5 source images, 25 MB each; the first is edited and multipart is required. Sume takes public HTTPS URLs as input_references.
Instagram Creator Marketplace discovery filters vs Sume's
Meta added six discovery filters, including featured_in_paid_ads. Sume's influencer search takes niche, geo, language, followers and engagement only.
Instagram Creator Marketplace Discovery rate limit: 5,000/hour
Meta raised the Creator Marketplace Discovery API cap to 5,000 calls per user per hour from 1,000. Sume's creator search has its own per-key budget.
Instagram Creator Marketplace Messaging API: the 250,000 follower cap
Instagram's Creator Marketplace Messaging API reaches creators with 250,000 or fewer followers. Shortlist inside that band with Sume's influencer search.
Instagram messaging API multiple images: make a set in one call
Instagram's multiple-image messages left beta on May 6, 2026. Generate a four-image set with one Sume images call and send the hosted URLs yourself.
Instagram Edits assistant: cut a 7-second reel with Sume video trim
The Edits assistant told one creator to mix a 7-second reel among 1-minute videos. Cut a 7-second version of a longer reel with video trim, from 0.2 seconds.
Kling 4.0 on-screen text vs Sume burned-in captions
Kling 4.0 renders on-screen text inside the video. Sume burns captions onto a finished clip; language is a speech-to-text hint, and cues add authored text.
Kling 4.0 video extension, forward or backward, done by hand on Sume
Kling 4.0 extends a video forward or backward in one workflow. On Sume you chain clips yourself: pull a frame, pass it as first_frame or last_frame.
Kling Avatar v2 audio formats vs Sume Fabric audio_url
fal lists MP3, OGG, WAV, M4A and AAC audio for Kling Avatar v2. Sume Fabric takes an audio_url plus a still; here is how the two inputs compare.
Kling Avatar output length follows audio; Sume H3 Max is 5-14.8 s
On fal, Kling Avatar v2 Pro output duration matches the audio file. On Sume the audio sets length too, within route windows from 5 to 14.8 s up to 60 s.
Kling Avatar v2 Standard vs Pro: fal tiers vs Sume quality
fal prices Kling Avatar v2 Pro at $0.115/s and Standard at $0.0562/s. Sume Avatar Video has its own quality values: standard, plus and max.
Krea 2 API pricing: references and moodboards vs Sume pricing
Krea 2 Medium costs $0.030 to $0.040 and Large $0.060 to $0.070 per generation, rising with style references and moodboards. Sume shows pricing per endpoint.
Krea 2 creativity parameter vs Sume's unsupported_parameter
Krea 2 exposes creativity as a tunable request parameter. Sume has no creativity field and rejects it with a 400.
Krea 2 style references and moodboards vs Sume reference images
Krea 2 style transfer uses one or many reference images, and moodboards take dozens. Sume takes reference image URLs on input_references, capped per model.
Deprecation and Sunset headers before 410 Gone: Sume's old names
Krea's retired Kling endpoints send Deprecation and Sunset headers, then 410 Gone. Here is how to detect that in code and which Sume aliases still work.
MiniMax H3 Max reference audio needs an image or video on Sume
Krea says MiniMax H3 Max audio references cannot be sent alone; Sume's reference_audio_urls has the same rule. Limits for images and videos compared.