Syntx Hosted Playground, 100+ models
Syntx (syntx.ai / SYNTX.AI) is a subscription playground that hosts 100+ engines — Kling, Veo, Seedance, Sora, Grok, HeyGen, D-ID, Wan, Topaz and more — not Famous Labs’ first-party 4–14s AMM and not Synthesia’s 140-language avatar LMS. Marketing: native audio, up to 50 references, clips up to 30 seconds in one go. FAQ copy says length and picture follow the chosen model, up to 4K and up to several minutes. Treat those as hosted SKUs, not a first-party Syntx 4 / 6 / 8 second generate row of this site’s. One documented row, HeyGen on Syntx: fixed 1080p; 16:9 or 9:16; 25 / 30 / 60 fps; audio 2 seconds–2 minutes. D-ID avatars: an image plus text or audio. Skip euro and dollar prices. ImgToVid does not run Syntx; the generator on this page drafts on Seedance 2.5.
01 — Capabilities
A 100-model playground, not a 4–14s AMM or an avatar LMS
Public Syntx pages sell access to hosted engines. They do not sell SuperCool’s 4–14s AMM, or Synthesia’s 1080p 140-language avatar desk.
01
100+ hosted engines: Kling, Veo, Seedance, Sora, HeyGen, D-ID…
Length and picture follow the chosen model. That MP4 stays on syntx.ai.
02
Marketing: native audio, up to 50 refs, up to 30s in one go
FAQ: up to 4K and several minutes depending on the engine. This page does not open that playground.
03
HeyGen row on Syntx: 1080p; 16:9 or 9:16; audio 2s–2 min
D-ID: image + text or audio. Hosted SKUs, not this site’s Syntx generate table.
04
Not SuperCool’s AMM, not Synthesia’s avatar LMS
SuperCool is Famous Labs’ 4–14s / 480p–720p AMM. Synthesia is the 1080p avatar desk. Syntx hosts other people’s engines. This site does not open Syntx.
02 — Prompt to output
Prompts that match the clips above
Each prompt describes the picture on its card. “Use this prompt” sends that text to Create. The generator on this page runs Seedance 2.5, not Syntx.
- 01 · Portrait
PromptClose-up of a young man with curly hair in a grey knit sweater, soft window light. He glances away, then smiles. Slow push-in, shallow depth of field.
- 02 · Product
PromptA white leather sneaker on a pale grey studio backdrop, soft diffused light. The camera orbits slowly. Stitching stays sharp, the look stays minimal.
- 03 · Street
PromptA slow dolly down a cobblestone lane in an old European village. Climbing roses on stone walls, café tables in morning sun, a few people walking in the distance.
- 04 · Character
PromptA young woman with shoulder-length brown hair in an olive t-shirt, late-afternoon gold light. She turns her head and looks off. Breeze in her hair, a handheld feel.
03 — Where it fits
Jobs a hosted playground is selling
Public pages point at picking an engine and generating on that SKU. They do not sell a SuperCool AMM take or a Synthesia avatar course of Syntx’s own.
Pick Kling, Veo, Seedance, Sora or HeyGen and generate on that SKU
Caps follow the engine (marketing: up to 30s / 4K). This page does not open that project.
HeyGen 1080p talking-head (2s–2 min audio) or a D-ID still+script
Delivery stays on Syntx. Those are hosted tools, not a first-party Syntx 4/6/8s row.
A first-party 4–14s AMM, or a 140-language enterprise avatar LMS
That is SuperCool or Synthesia. Syntx is the playground.
A draft shot on ImgToVid
Write the shot here. Seedance 2.5 carries the prompt into Create. Membership and credits are checked there.
04 — Verdict
What Syntx actually is
Strengths
- syntx.ai (SYNTX.AI): 100+ hosted engines — Kling, Veo, Seedance, Sora, HeyGen, D-ID
- Marketing: native audio, up to 50 refs, clips up to 30s; FAQ up to 4K / several minutes
- Honest that HeyGen-on-Syntx 1080p and 2s–2 min audio are that tool’s caps
- Honest that those caps are hosted SKUs, not a first-party Syntx 4/6/8s generate row here
Trade-offs
- No first-party Syntx 4 / 6 / 8 second cinematic picker — length and picture follow the chosen engine
- A Syntx job on syntx.ai is not this site’s generate table
- Syntx is not available on ImgToVid
- Marked coming soon on this site
05 — Side by side
Syntx, Veo 3.1 and Kling 4.0
Syntx is a hosted multi-model playground. Veo 3.1 and Kling 4.0 numbers below are from those vendors’ public docs. A hosted Kling or HeyGen clip on Syntx is not a Syntx generate row on ImgToVid.
06 — How it works
Start a clip on ImgToVid
Step 1
Describe one shot
Subject, action, camera. Syntx will not be the model that runs it.
Step 2
Use the generator on this page
It runs Seedance 2.5, because Syntx is not offered here. The prompt and the settings carry into Create.
Step 3
Generate in Create
Membership and credits are checked there. Coming back to this page does not switch the model over to Syntx.
07 — FAQ
Syntx, in plain terms
What is Syntx?
Syntx is a subscription playground that hosts 100+ engines (Kling, Veo, Seedance, Sora, HeyGen, D-ID and more). ImgToVid does not host Syntx.
How long is a Syntx clip?
It depends on the chosen model. Marketing says up to 30 seconds in one go; FAQ copy says up to several minutes. HeyGen-on-Syntx audio is 2 seconds–2 minutes. That is not a Syntx 4 / 6 / 8 second cinematic picker here.
Does Syntx generate video from text?
Yes — through whichever hosted engine you pick. That is syntx.ai, not a cinematic one-shot on ImgToVid.
What picture size can I use?
It follows the engine. FAQ copy says up to 4K. The documented HeyGen row is fixed 1080p at 16:9 or 9:16. This site does not open that playground.
Can I generate Syntx videos on ImgToVid?
No. The generator on this page runs Seedance 2.5 so you can draft a shot. Syntx is marked coming soon.
Can I use the results commercially?
Commercial use of anything you generate on ImgToVid depends on your plan. Check Pricing and our Terms before you publish, and make sure prompts and uploads do not infringe someone else’s rights.
08 — Explore more
Other video models
Syntx is not the button on this page
You can still draft the shot. The generator runs Seedance 2.5, and the prompt goes with you into Create.
Draft in Create