The video lineup — every engine, one price rule, one set of controls

The video roster grew to 16 engines this month, and the generation engines are named, because people pay to choose the model. Seedance in four sizes, Veo 3.1 in three, Sora 2 Pro, Kling 3.0 in two, Hailuo 3 in two, Wan 3.0, Runway Gen-4.5, Grok Imagine — and Motion One, our own engine, the uncensored one. This guide is the table of the text- and image-to-video engines, the price rule behind every number, and how the same controls map onto engines that do not all do the same things.

The table

Prices are a five-second clip at the engine's default resolution with sound on, from the billing function — the same numbers the studio, the API and the plugins quote.

Engine	5 s	Length	Resolution	Sound	Refs	Start / end frame	Plan
Seedance 2.5	310	4–30 s	480p, 720p	yes	6 + voice	both	Creator
Seedance 2.0	200	4–15 s	480p–1080p	yes	6 + voice	both	Creator
Seedance 2.0 Fast	120	4–15 s	480p, 720p	yes	6 + voice	both	Hobby
Seedance 2.0 Mini	45	4–15 s	480p, 720p	yes	6 + voice	both	any plan
Veo 3.1	530	4, 6, 8 s	720p, 1080p	yes	3	both	Creator
Veo 3.1 Fast	135	4, 6, 8 s	720p, 1080p	yes	3	both	Hobby
Veo 3.1 Lite	70	4, 6, 8 s	720p, 1080p	yes	—	both	any plan
Sora 2 Pro	400	4–20 s	720p, 1080p	yes	—	—	Creator
Kling 3.0 Pro	225	3–15 s	720p	yes	4	both	Creator
Kling 3.0	170	3–15 s	720p	yes	4	both	Hobby
Hailuo 3	175	5–15 s	2K	yes	3 + voice	both	Creator
Hailuo 3 Max	110	5–15 s	480p, 768p	no	—	both	Hobby
Wan 3.0	135	2–30 s	480p–1080p	yes	3	start	any plan
Runway Gen-4.5	160	2–10 s	720p	no	—	start	Creator
Grok Imagine	185	1–15 s	480p–1080p	no	—	start	Hobby
Motion One	60	5–10 s	768p	built in	—	start	any plan

"Voice" in the references column means the engine takes an audio reference: a character's voice sample rides the render so their lines come out in their voice. "Both" means a start frame and an end frame; a start frame is what image-to-video and Cinema's continuous shots use.

The price rule

Every third-party engine is priced per second at a resolution, with sound as a factor on engines where it costs more, and the clip price is the seconds times the rate — not a five-second anchor with a discount. So a ten-second clip is twice a five-second one: 90 credits on Seedance 2.0 Mini, 340 on Kling 3.0, 1,060 on Veo 3.1. The exceptions are engines with extras — a reference picture on Hailuo 3, an image frame on Grok, a 21:9 frame on the Seedance 2.0 family — which add a fixed amount the studio shows before you render.

Motion One is flat: 60 credits for five seconds or ten.

The rule behind the rates: each engine's rate is its real cost to us plus a margin, checked against the live catalogue by a script that fails when a margin slips or a length disappears. What you see in the studio's cost line, in list_models over MCP, in a plugin's panel and in an article like this one comes from one function — the one that charges — so the numbers never disagree.

Failed renders refund themselves. A content refusal upstream is a refund too, with a content_blocked error. When an engine is saturated you get a busy error and are not charged.

One set of controls

The studio, Cinema and the API expose the same knobs on every engine; what changes is which ones an engine honors, and the caps clamp the rest before billing rather than silently reducing after:

• Seconds on the engine's grid — Veo in steps of two, Sora in steps of four, the rest by the second — and under your plan's cap (15 on Hobby, 20 on Creator, 30 from Studio up).
• Resolution from what the engine serves; the price follows it. 4K is not offered on any engine — the clip would not fit the pipeline that saves it.
• Aspect from the engine's native list; non-native ones are greyed with a switch.
• Sound on or off, on engines with a soundtrack. Off is cheaper where the engine charges for it.
• Seed, where honored — the Seedance and Veo families, Wan, Runway.
• References: up to the engine's count; a start frame replaces them on engines where a start image makes the engine ignore references, and is then not charged as one.
• Cast and voices in Cinema: sheets as references, voice samples on Seedance 2.x and Hailuo 3.

Asking an engine for a knob it lacks is refused with the reason, not swapped for a lesser render.

Picking one

• Cheapest good clip: Seedance 2.0 Mini, on every account. Sound, references, start and end frames.
• Longest take: Seedance 2.5 or Wan 3.0, up to 30 seconds, plan permitting.
• Sharpest: Hailuo 3 at 2K; Veo 3.1, Seedance 2.0, Wan 3.0 and Grok at 1080p.
• Faces that hold: engines with references — Seedance, Kling, Hailuo 3, Veo 3.1, Wan. The consistency guide compares them.
• Physics and multi-shot from one prompt: Sora 2 Pro.
• Uncensored: Motion One, the only engine that renders adult content — the rest are moderated upstream.

The engine chooser goes deeper per use case.

FAQ

Why are the third-party engines named when the image and chat models are not?

Because for video, the engine is the choice — people compare Kling and Seedance the way they compare lenses. Image, chat and voice models are ours to tune and are named by us.

Is Motion One's engine named anywhere?

No. Motion One is eroq's own engine, with its own pipeline; its upstream is not part of the product.

Do prices change?

Rates follow our costs; when one moves, every surface moves with it because they all read the same function. This article's numbers are resolved when the page loads, not typed.

Why can't I pick 4K?

The saving pipeline has a memory ceiling a 4K clip would break. 2K on Hailuo 3 is the current top.

Compare them on /models, or pick one in the Video tool and render five seconds.