Hy Image 3.5 Preview: 2K or 4K? Tencent and OpenRouter differ
Tencent's launch post says up to 2K; OpenRouter's page lists resolution 1K to 4K. How to test it, and which Sume image rows list a 4K tier or pixel size.
Models
The models behind Sume's video, image, speech, and music endpoints: ids, clip lengths, resolutions, aspect ratios, audio, references, and migration.
Start with: What AI models does Sume support? Every model id, by API surface
Hy Image 3.5 Preview: n=1 and seed, against Sume's n and seed
OpenRouter lists Hy Image 3.5 Preview with n capped at 1 and a seed. Sume's Image API takes n up to 4 on most rows and returns 400 for seed. A field table.
Kling.ai headlines Kling 4.0: what an API buyer can call today
kling.ai now shows 'All-New Kling 4.0', but fal still says full launch is October. Sume lists kling-3 (4-15 s, 720p/1080p) and no 4.0 id. Prices inside.
MAI-Transcribe-2: 60 languages, 17 more than 1.5, and the Sume hint
Microsoft lists 60 languages for MAI-Transcribe-2, 43 for MAI-Transcribe-1.5, so 17 new ones. Sume STT takes a language_code hint or auto-detects.
MAI-Transcribe-2-Streaming runs in 4 regions, MAI-Voice in 14
Microsoft lists four regions for MAI-Transcribe-2-Streaming and 14 for MAI-Voice-2.1; three overlap. Sume's STT and TTS requests have no region field.
MAI-Voice-2.1 languages: 23 listed, no Japanese or Arabic voice
Microsoft's MAI-Voice-2.1 voice table covers 23 languages and 28 locale codes, with no Japanese or Arabic row. How Sume's TTS language field handles both.
MAI-Voice-2.1-Flash: 150 ms end-to-end and a 45-second audio limit
Microsoft's news post gives MAI-Voice-2.1-Flash 150 ms end-to-end latency and 45 s of audio; the Learn page gives no latency number. What each page supports.
Same Omni video twice: no seed, but a replay returns it
Omni Flash lists no temperature or seed, and Sume rejects seed on every video model. To repeat a clip, replay an idempotency key or use a video_url edit.
Veo 3.1 clip older than 2 days: it cannot be extended
Veo 3.1 extends only Veo-made clips kept 2 days. If yours expired, here is what Google's page allows and what Sume's Omni edit and new generation do.
Which video model for a 12 s 9:16 clip with end frame and sound?
Seedance 2.5, Wan 3.0, Kling 3 and MiniMax H3 all take a 12-second 9:16 clip with an end frame on Sume. Prices run from $0.90 to $6.94; here is the pick.
12 Sume video ids: which need a source video, which take text
Nine of Sume's twelve video ids take a text prompt. grok-imagine-video-1.5 needs an image; higgsfield-genjutsu and h3-max-recast need a video. Ranges per id.
Seedance 2.5 has a 4-second minimum: the shortest clip is $1.0747
Seedance 2.5 on Sume takes 4 to 30 seconds. What a 4-second clip costs at 480p, 720p and 1080p on each Seedance tier, and where shorter hooks go.
Hy Image 3.5 Preview is not in Sume's catalog: what to call instead
Sume's image catalog does not list Hy Image 3.5 Preview. Check with one jq call, then pick a listed model by price: Soul, gpt-image-2.5, Seedream or Flux.
Kling 4.0 API: what to generate with on Sume while you wait
Kling 4.0 was announced in September 2026. Sume's catalog lists kling-3 today: 4 to 15 seconds, $0.14 a second silent, $0.21 with sound. Request included.
Nano Banana 2.1 vs Pro from 512 to 4K: price per image on Sume
Nano Banana 2.1 runs $0.075 at 512 to $0.20 at 4K; Nano Banana Pro is $0.1875 up to 2K and $0.375 at 4K. Full tier table and a per-1,000 view.
Kling 3 stops at 15 seconds: three ways to a 30-second clip
Kling 3 on Sume takes 4 to 15 seconds. For 30 seconds, use Wan 3.0 at $3.75 (720p) or Seedance 2.5, or join two takes with Timeline. Prices side by side.
Does a vertical 9:16 Omni Flash clip cost more than 16:9?
No: on Sume a 9:16 and a 16:9 Gemini Omni Flash 1.1 clip cost the same at each resolution and length. The side-by-side numbers and how to request each ratio.
Which Sume video models stop at 15 seconds and which reach 30?
Seedance 2.5, Wan 3.0, Genjutsu and H3 Max Recast go past 15 seconds on Sume; MiniMax H3 stops at 15 and Gemini Omni Flash 1.1 at 10. The full limit table.
TTS Router ids: sonic-3.6 to sonic-preview, one price book
Sume TTS Router lists sonic-3.6, sonic-3.5, sonic-3, sonic-latest and sonic-preview, all at the TTS 1.0 character price. What each id is and when to pin it.
When Seedance 2 Mini or Fast is enough, and when to pay for 2.5
A decision guide for Seedance tiers on Sume: what Mini, Fast and 2.5 cost for the same clip, what only 2.5 can do, and which jobs belong on which tier.
Five requests Omni Flash cannot take, and what to send instead
Gemini Omni Flash 1.1 on Sume refuses clips over 10 seconds, silent clips, audio references, 1:1 and 2K or 480p output. What to send instead for each.
Swap four people in one video: H3 Max Recast bills per second
h3-max-recast takes one source video and 1 to 4 person photos, 5 to 30 seconds. Price is $0.375 or $0.5625 a second whether you swap one person or four.
Gemini Omni Flash 1.1 on Sume: spec sheet and billing in one page
Everything that ships for gemini-omni-flash-1.1 on Sume: 3 to 10 seconds, four resolutions, two ratios, always-on audio, reference limits, edit mode, billing.
sume/music-auto or pinned lyria-3.5: what changes in the job
Music Router takes sume/music-auto (Lyria 3.5 today), lyria-3.5 or lyria-3-pro. What job.model and routed_model echo back, and why the price stays the same.
Higgsfield Soul on Sume: half a cent per image, batches of 1 or 4
higgsfield-soul costs $0.005 at 720p and $0.0075 at 1080p on Sume. It takes batch sizes 1 or 4, no references. Price table and a four-image call.
AI video news Oct 1-8, 2026: Vidu Q4 Preview, Kling 4.0, Sume coverage
Vidu Q4 Preview launched Oct 7 and kling.ai headlines Kling 4.0. We checked Runway, Luma and Veo, and which of them Sume lists.
Audio API launches, Oct 1-8 2026: dates, prices and what Sume covers
A dated calendar of speech, voice and music releases from Sep 28 to Oct 8, 2026, each with the number the vendor published, and which ones Sume lists.
Image model launches, Oct 1-8, 2026: which ones Sume lists
Nano Banana 2.1 went GA on Oct 6. FLUX 3 Image, Hy Image 3.5 Preview and Recraft V4.1 Flash are live at their vendors. Which ids the Sume router calls.
How many aspect ratios does each Sume image model list? Oct 2026
Nano Banana 2.1 lists 15 aspect ratio values, Imagen 5. A count for every Sume image row, and why the number decides banners, stories and 4:5 posts.
Seedream 5.0 Lite search and thinking: what Sume's API passes
ByteDance describes online search and thinking for Seedream 5.0 Lite. Sume's row lists 9 ratios at about $0.04375 and empty provider.options. What that means.
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.
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.
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.
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.
Nano Banana 2 shutdown on Oct 29? Google's changelog gives no date
Some pages quote an Oct 29 shutdown for Nano Banana 2. Google's Oct 6 changelog lists no date. What that means for a Sume image call.
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.
MiniMax H3 defaults to 2K at MiniMax; on Sume the default is 768p
MiniMax's H3 page says 2K is the default. Sume's minimax-h3 runs native 480p or 768p with a 768p default; 2K and 4K are billed upscales.
Best image-to-video model, October 2026: Wan 3.0 is 7th at 1,164 Elo
On the AA image-to-video board MiniMax H3 Max leads at 1,195 and Wan 3.0 is seventh at 1,164. Which of the top 12 you can call on Sume, with per-minute prices.
Chinese and English text in images: Hy Image 3.5's claim, Sume's rows
OpenRouter says Hy Image 3.5 Preview renders Chinese and English text. Sume does not list it. How to test Chinese signage on the Sume rows that are listed.
Clef context: 65,536 on Cloudflare, 16,384 on the model card?
Cloudflare's Workers AI page lists 65,536 tokens of context for Clef; its Hugging Face card says 16,384 by default. Budget from the smaller. Cost math inside.
EU, UK or South Korea team: which open video weights you may use
HunyuanVideo and MiniMax H3 licenses exclude the EU, UK and South Korea. Wan 2.2 is Apache 2.0 and LTX-2.5 is worldwide with a revenue line.
Gemini Omni Flash 1.1 ranks 8th, 4th and 3rd on three AA boards
Gemini Omni Flash 1.1 is eighth on AA text-to-video, fourth on image-to-video and third on editing. On Sume it is one id at $0.125 a second at 720p.
H3 on vLLM-Omni: 87 s on 4 B300 for one clip, and the cost
MiniMax says an 8.7 s H3 clip takes about 87 s on 4 B300 GPUs. Turn that into GPU-seconds, a break-even rate, and compare with a 9 s Sume job.
Mac or Windows team: which open video models need Linux and CUDA?
HunyuanVideo and HunyuanVideo-1.5 list Linux; LTX-2.5's fastest decoder is Linux plus CUDA; H3 has a Mac route. What each page says and a hosted option.
MiniMax H3 4K hero clip vs 768p cutdowns: holiday ad cost
A 10-second MiniMax H3 clip is $0.75 at 768p, $1.625 at 2K and $2.00 at 4K on Sume. Five free reference images are included; extra ones are $0.10 each.
MiniMax H3 on a 12 GB RTX 3060: 480p only, 42 GB, and the price
MiniMax says 12 GB of VRAM runs 480p H3 clips with audio from a pruned int8 checkpoint of about 42 GB. What that buys, and a 480p clip on Sume costs.
Packaging label text test: 12 prompts on 3 Sume models, what it costs
Test Nano Banana 2.1, Imagen 4 Ultra and GPT Image 2.5 on 12 label-text prompts first: about $1.20, $0.90 and $1.40 on Sume. A short script runs it.
AA text-to-video top 12: six you can call on Sume, six you cannot
Of the 12 models on the AA text-to-video board, six have a Sume id that takes a prompt-only request. The list, with Elo and Sume's price per minute.