Models
The models behind Sume's video, image, speech, and music endpoints: ids, clip lengths, resolutions, aspect ratios, audio, references, and migration.
Muse Voice Transcribe keyword biasing vs Sume STT: no vocab field
Muse Voice Transcribe has keyword biasing for names and domain terms. Sume STT has no vocabulary field: its request takes a language hint and word timings.
Pika Camera Director vs a prompted video edit on Sume
Pika Camera Director reshoots a scene from new angles. On Sume, Omni Flash 1.1 edits a clip from a video_url and a prompt; there is no camera-angle parameter.
Pika Soundtrack: video in, sound out. What Sume has instead
Pika Soundtrack scores a finished video. Sume's docs offer generate_audio at video creation and a Timeline soundtrack bed, but no video-to-sound endpoint.
30-second video with sound: Pika Video Studio vs Sume ids
Pika Video Studio makes up to 30 seconds with sound. On Sume, seedance-2.5 and wan-3.0 reach 30 seconds; every other catalog model stops at 15.
Pika Video Studio's 50 references vs Sume's per-model limits
Pika Video Studio attaches up to 50 references. Sume's caps are per model: 10 images and 3 short clips on Omni Flash, 1 to 8 images on Genjutsu.
Qwen-Image 2.1 ControlNet Union Fun in ComfyUI vs reference images
ComfyUI added Qwen-Image 2.1 ControlNet Union Fun for editing on 2026-09-29. Sume has no ControlNet input; it edits with reference images and masks.
Qwen Image 2.1 license: research only, commercial needs a request
Qwen-Image-2.1 ships under the Qwen Research License: non-commercial means research or evaluation only, and commercial use needs a separate license.
Runway Compositing Nodes vs Sume Timeline compose
Runway added compositing nodes to blend images and video in Workflows. Sume's Timeline compose puts one still and one video in one MP4: stack or overlay.
Synthesia Express-3 follows script sentiment; Sume's script controls
Synthesia Express-3 avatars follow script sentiment. Sume Avatar Video is steered by script text, silence beats, scene direction and quality tiers.
Tavus 50 new Phoenix-4.5 stock faces vs a Sume avatar handle
Tavus added 50 first-party Phoenix-4.5 stock faces, 28 of them Pro. On Sume you create your own avatar from a prompt, profile or image and reuse its handle.
VEED lipsync-v2 video + audio vs Sume still + audio lip sync
fal lists veed/lipsync-v2 as video plus audio in. Sume lip sync routes start from a still and an audio clip, so existing footage is not re-synced.
Wan-Animate-2 14B: Apache 2.0 weights vs Sume Motion Transfer
Wan-Animate-2 14B weights are Apache 2.0 and ship inference scripts. Sume's Motion Transfer takes one source video plus 1-8 reference images, 4-30 s.
Wan-Animate-2 Base vs Distillation weights: which to download
Wan-Animate-2 ships Base and Distillation checkpoints, each with its own YAML config. What the card says, and the hosted limits Sume lists for comparison.
WorldCrafter camera control: Base weights, adapter and LoRA
TencentARC WorldCrafter-Base ships transformer weights with a matching camera adapter and LoRA. On Sume, steer camera motion in the video prompt instead.
YuE2-3B license is CC-BY-NC-4.0: what that means vs Music Router
YuE2-3B is tagged cc-by-nc-4.0, a non-commercial license. Sume's Music Router routes sume/music-auto, lyria-3.5 and lyria-3-pro instead.
YuE2 48 kHz stereo on a 24GB GPU vs a hosted Sume music job
YuE2-3B needs a 24GB NVIDIA GPU with BF16 for 48 kHz stereo songs. A hosted Sume music job needs no GPU, only a prompt and an Idempotency-Key for retries.
Suno v6-wild: is there a less predictable setting on Sume?
Suno v6-wild is a paid model that is less predictable. Sume's music request has no seed, temperature or guidance field, so variety comes from the prompt.
Lyria 3.5 takes 10 images: Sume music takes one image_url
Google's Lyria 3.5 page lists up to 10 images alongside text. Sume's music request has a single optional image_url, so pick one accepted still per track.
GPT Image 2.5 cached input price: does Sume pass it on?
OpenAI lists cached input at $1.25 text and $2 image per million tokens for Sunburst. Sume's docs give estimates and reserved cost, not a cache discount.
How many reference images? 10 on Image 1.0, 16 on GPT Image 2.5
Image 1.0 image_urls takes 1 to 10 public HTTPS URLs; ChatGPT Image 2.5 takes up to 16 references. Text-only models reject references.
gpt-image-2 or openai/gpt-image-2? Model ids on Sume's Image API
Sume accepts bare Image Router ids such as gpt-image-2 and nano-banana-2 as aliases for openai/gpt-image-2 style ids. The catalog lists org/slug ids.
FLUX video edit API: 720p downscale, and video_url edits on Sume
BFL's edit-a-video endpoint downscales sources above 720p. Sume lists no FLUX video; its edit path is video_url with gemini-omni-flash-1.1 only.
Gemini 3.5 Transcribe API limits: 1 hour vs Sume STT's 10 minutes
Gemini 3.5 Transcribe takes up to 1 hour per request, 30 minutes with diarization or word timestamps. Sume STT takes 600 seconds; split longer audio.
Gemini API speaker diarization: 8 speakers; Sume STT has no labels
Gemini 3.5 Transcribe diarizes up to 8 speakers, 3+ experimental, within 30 minutes per request. Sume STT returns word timings but no speaker labels.
Gemini Omni video editing: the EEA, UK and under-10-second rules
Google says editing or extending uploaded videos with Omni is unavailable in the EEA, Switzerland and the UK, and uploads must be under 10 seconds.
Gemini Omni extend video: Google's 40 s cap vs Sume's modes
Google's Gemini Omni can extend a video by 3-10 s up to 40 s. Sume's Omni row has no extend mode; here is what it offers instead.
Gemini TTS API: which engine Sume's TTS routes to
Gemini 3.8 TTS is not in Sume's TTS Router, which lists Cartesia Sonic ids only. What Sume's TTS takes for voice, engine and length, with a checklist.
Genjutsu Object Swap API: Sume serves Motion Transfer only
Higgsfield pairs Motion Transfer with Object Swap in Genjutsu. Sume's Genjutsu row serves Motion Transfer only; Object Swap is rejected by name.
Grok Imagine video editing: 8.7 s on xAI, Omni edit on Sume
xAI caps Grok Imagine video edits at 8.7 seconds. Sume's Grok row has no video-to-video; edits go through gemini-omni-flash-1.1 with a video_url.
Grok Imagine video sound: xAI audio vs Sume's silent row
xAI's Grok Imagine video makes audio unless generate_audio is False. Sume's grok-imagine-video-1.5 row lists audio: false and rejects generate_audio.
Hy-Image-3.5-Preview API limits vs Sume's image limits
Tencent's Hy-Image-3.5-Preview takes 256 to 8192 px edges, up to 4096x4096 and 20 references. Sume lists no Hy Image model; its own limits are below.
Ideogram 4.5 Precise Edit API: mask and reference limits
Ideogram 4.5 Precise Edit takes 4 reference images, 3 when a mask is sent. Sume lists Ideogram V3, and mask_url there is only for ChatGPT Image 2.5.
Kling 2.1 API sunset: 410 Gone, and the kling-3 id on Sume
Krea retired Kling 1.0 through 2.1: endpoints return 410 Gone after Sep 15, 2026. Sume lists kling-3 in its video catalog; here is what to change.
MiniMax H3 Max Turbo API: what Sume lists today
Krea added MiniMax H3 Max Turbo on Sep 9. Sume's video catalog lists minimax-h3 and minimax-h3-max, not a Turbo id. What each listed id accepts.
MiniMax H3 Max Turbo price: fal's rates, and the id Sume lists
fal prices H3 Max Turbo separately from H3 Max. Sume's docs list only minimax-h3-max; how to check the catalog, and what that id bills for 5 seconds.
MiniMax music API closed to new users: the Sume Music Router route
MiniMax stopped offering its paid Music and Lyrics APIs to new users on Aug 20, 2026. Sume's Music Router, sume/music-auto, is open: one POST, flat price.
Nano Banana Pro aspect ratio: auto keeps the reference shape
Freepik's changelog says Nano Banana Pro accepts aspect_ratio auto to follow reference images; omitting it stays 1:1. On Sume, omitting is also not auto.
Recraft V4.1 Flash API: Sume lists V4, webp, text-only
Recraft V4.1 Flash is live in Recraft Studio and its API. Sume lists recraft/recraft-v4, not a Flash id: webp output, text-to-image only, no references.
Medical transcription API: what Sume STT does and doesn't
Sume has one speech-to-text route, sume/stt-1.0, with no medical model option. What it takes and returns, so you can decide for clinical audio.
Seedream 5.0 pro layer decomposition vs a Sume Seedream result
Seedream 5.0 pro can split one image into a base plus up to 16 PNG layers. Sume lists Seedream 5.0 Lite, and results are one Sume-hosted URL per image.
Suno v6 audio and video input vs Sume: text and one image
Suno v6 says you can create with text, audio, images and video. Sume's music request takes a text prompt and one optional image; audio and video are not inputs.
Wan 3.0 on Runway, or the wan-3.0 id as an API job on Sume
Runway's changelog lists Wan 3.0 in tool mode and workflows on paid plans. On Sume, wan-3.0 is a model id you call from code and poll as a job.
Vidu API: S2-Avatar live voice vs Sume avatar video jobs
Vidu S2-Avatar is a real-time voice model. Sume has no live session: you submit a script and a scene photo to an avatar job and fetch the finished video.
Vidu S2-Editing: live stream edits vs a Sume Omni clip edit
Vidu S2-Editing edits an incoming video stream in real time. Sume edits one finished clip with a prompt through Gemini Omni video_to_video, as an async job.
PixVerse API and R2 world model: Sume has no live session
PixVerse R2 is a persistent real-time world. Sume has no live session or action controls: video jobs return a clip you poll for or get by webhook.
Kling 4.0 30 seconds: Sume lists kling-3 at 4 to 15
Kling 4.0 announces 3 to 30 second generation. Sume lists kling-3 at 4 to 15 seconds; seedance-2.5 and wan-3.0 are the ids that reach 30 seconds.
Kling 4.0 Omni Reference: 15 inputs; kling-3 on Sume takes none
Kling 4.0 Omni Reference allows up to 15 combined references. On Sume, kling-3 takes none; wan-3.0 and minimax-h3 list image, video and audio caps.
Kling 4.0 multiple keyframes: ten, versus Sume's two frames
Kling 4.0 announces up to 10 keyframes. Sume's video routes take a first and last frame; longer chains mean separate clips cut and joined.