Which is cheaper, Seedance 2.5 or Seedance 2?

Seedance 2 starts lower: from $0.23 per run, against from $0.43 per run for Seedance 2.5. By starting rate, Seedance 2 is lower: Seedance 2.5 from $0.1075/s, Seedance 2 from $0.0563/s. Those are each model's cheapest settings, and the price of a request depends on what it asks for: the table lists each model's rates. With resolution 480p, Seedance 2 is lower: Seedance 2.5 $0.1075/s, Seedance 2 $0.0563/s, each on its cheapest route. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.

Which makes longer clips, Seedance 2.5 or Seedance 2?

Seedance 2.5: up to 30 seconds in one request, against 15 for Seedance 2, by their input schemas.

Which resolutions can I set on Seedance 2.5 and Seedance 2?

Seedance 2.5: 480p, 720p, 1080p. Seedance 2: 480p, 720p, 1080p, 4k. These are the tiers the "resolution" field of each model's input schema lists; a model can also have a default size that is not one of them.

Can I use Seedance 2.5 and Seedance 2 with one API key?

Yes. Both run on varg behind POST https://api.varg.ai/v2/tools/video/call with one API key and one credit balance: send "model": "seedance_2_5" or "model": "seedance_2". Every model is billed at its provider's price with no markup, from one credit balance: 1 credit is $0.01.

AI video models · compared

Seedance 2.5 vs Seedance 2

Seedance 2.5 and Seedance 2 are both AI video models that run on one varg API key. This page puts what the varg catalog states about each side by side: the price, how it is billed, the limits of the input, what it takes and the typical time. It ranks neither on quality.

Seedance 2.5: From $0.43 per run from $0.1075/s
Seedance 2: From $0.23 per run from $0.0563/s

Every model is billed at its provider's price with no markup, from one credit balance: 1 credit is $0.01.

Try Seedance 2.5 Try Seedance 2

Seedance 2.5 vs Seedance 2: side by side

Every row is read from the varg catalog and each model's input schema. A "from" price is the cheapest request the catalog states for that model, at its own cheapest settings. For the exact price of a request, send its body to POST https://api.varg.ai/v2/estimate.

Seedance 2.5 vs Seedance 2
Fact	Seedance 2.5	Seedance 2
Made by	ByteDance	ByteDance
Takes and makes	Text to video, Image to video, Video to video	Text to video, Image to video, Video to video
Price	From $0.43 per run	From $0.23 per run
Rates on the cheapest route	Resolution 480p: $0.1075/s; Resolution 1080p: $0.5723/s; Other: $0.2326/s; Minimum charge: $0.43	Resolution 480p: $0.0563/s; Other: $0.1218/s; Minimum charge: $0.23
Billed	per second	per second
Clip length	4 to 30 s	4 to 15 s
Resolutions you can set	480p, 720p, 1080p	480p, 720p, 1080p, 4k
Audio switch	Yes: "audio": true asks for a native audio track	Yes: "audio": true asks for a native audio track
Typical time	~3 min	~2 min
Routes	7 on piapi, byteplus and fal	13 on piapi, byteplus and fal
Model id	`seedance_2_5`	`seedance_2`

Which to pick

Each line is a difference between two rows of the table. None of it says which model's output looks better: that depends on the prompt.

Pick Seedance 2.5 when

you need a clip longer than 15 seconds: it takes up to 30 in one request.

Pick Seedance 2 when

you want the lower starting price: from $0.23 per run, against from $0.43 per run, each at the model's own cheapest settings.
you want the lower starting rate: from $0.0563/s, against from $0.1075/s; the table gives each model's rate by setting.
your request sets resolution 480p: its cheapest route charges $0.0563/s there, against $0.1075/s.
you need 4k: the tiers Seedance 2.5's input lists stop at 1080p.
you want the shorter typical wait: ~2 min, against ~3 min, by the catalog's estimates.

Call Seedance 2.5 and Seedance 2

One endpoint and one API key for both: POST https://api.varg.ai/v2/tools/video/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away; poll GET /v2/jobs/{id} until its status is completed.

Seedance 2.5

POST /v2/tools/video/call

curl -X POST https://api.varg.ai/v2/tools/video/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedance_2_5",
  "prompt": "A cyberpunk city street at night, neon signs reflecting in puddles. A heavy-set woman in a worn military uniform stands breathing hard, out of shape. She begins military calisthenics — push-ups, burpees, mountain climbers — her body transforming in real-time: fat melting away, muscles defining, posture straightening. Holographic HUD overlays track her progress with glowing stats. Rain falls around her as she powers through the workout, her uniform tightening as she becomes lean and athletic. The transformation completes — she stands as a fit soldier-athlete, rain-soaked, neon-lit, triumphant. Cinematic, dramatic lighting, cyberpunk aesthetic.",
  "aspect_ratio": "16:9",
  "resolution": "720p",
  "duration": 5
}'

vargai

vargai call_tool --tool video '{"model":"seedance_2_5","prompt":"A cyberpunk city street at night, neon signs reflecting in puddles. A heavy-set woman in a worn military uniform stands breathing hard, out of shape. She begins military calisthenics — push-ups, burpees, mountain climbers — her body transforming in real-time: fat melting away, muscles defining, posture straightening. Holographic HUD overlays track her progress with glowing stats. Rain falls around her as she powers through the workout, her uniform tightening as she becomes lean and athletic. The transformation completes — she stands as a fit soldier-athlete, rain-soaked, neon-lit, triumphant. Cinematic, dramatic lighting, cyberpunk aesthetic.","aspect_ratio":"16:9","resolution":"720p","duration":5}'

Seedance 2