AI video model comparison

Grok Imagine 1.5 vs Seedance 2.5

Seedance 2.5 is 3% cheaper (price per second at 720p: Grok Imagine 1.5 $0.36/s vs Seedance 2.5 $0.35/s). Grok Imagine 1.5 has the cheapest clip and faster renders. Seedance 2.5 has longer clips, more reference images and native audio.

Head to head

2 of 4 models · prices from the live catalog, Oct 23, 2026

Price
	Grok Imagine 1.5xAIflagshipTry it →	Seedance 2.5ByteDanceflagshipTry it →
Cheapest second	$0.21/s	$0.16/s (best)
Per second at 480p	$0.21/s	$0.16/s (best)
Per second at 720p	$0.36/s	$0.35/s (best)
Per second at 1080p	$0.64/s (best)	$0.86/s
Cheapest clip	$0.24 (best)	$0.64
A 5-second clip at 720p	$1.81	$1.75 (best)
A 10-second clip at 1080p	$6.40 (best)	$8.58
Speed and length
Render time	~30–54 sec (best)	~3–8 min
Longest clip	15s	30s (best)
Clip lengths	1–15s	4–30s
Output
Top resolution	1080p	1080p
Frames	1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3	9:16 · 16:9 · 1:1 · 4:3 · 3:4 · 21:9
Sound	—	Native (best)
Inputs
Takes	1Text · 1 image	30Text · 30 images · 1 video · audio
Reference images	Up to 1	Up to 30 (best)
Needs	A start image	A prompt
What it does
Can do	Image → video	Text → videoImage → videoFirst + last frameMulti-referenceVideo → videoAudio-driven
Good for	Fast drafts · Edgy creative · Memes	Cinematic scenes · Multi-reference · Product films
Settings you control	Frame · Length · Resolution	Frame · Draft preview · Draft to finalize · Length · Mode · Audio · Attachment role · Per-attachment roles · Negative prompt · File format · Resolution · Return last frame · Seed · Watermark

Same prompt, side by side

UGC selfie · the same prompt on every model

“A woman in her late twenties talks straight into her phone camera in a bright kitchen, handheld selfie framing, natural window light, she smiles and gestures mid-sentence, casual creator energy, no on-screen captions”

Same prompt

Grok Imagine 1.5

Same prompt

Seedance 2.5

Product shot · the same prompt on every model

“Cinematic product shot: a matte black wireless earbud case turns slowly on a dark reflective surface, a single warm rim light sweeps across it, macro lens, shallow depth of field, slow push-in, plain unbranded case”

Same prompt

Grok Imagine 1.5

Same prompt

Seedance 2.5

Which should you choose?

Choose Grok Imagine 1.5 if you want

the cheapest clip
faster renders
fast drafts
edgy creative

Generate with Grok Imagine 1.5 →

Choose Seedance 2.5 if you want

a lower price per second at 720p
longer clips
more reference images
native audio
text → video, which the other cannot do
first + last frame, which the other cannot do
multi-reference, which the other cannot do
video → video, which the other cannot do
audio-driven, which the other cannot do
cinematic scenes

Generate with Seedance 2.5 →

More from each model

Grok Imagine 1.5

Macro shot of an iridescent beetle crawling over a dew-covered leaf, rainbow shell and droplets crisp, morning light

A corgi in sunglasses bombs a hill on a skateboard past pastel houses, tongue flapping, fisheye lens, punchy saturated color

A neon-lit drag race between a vintage muscle car and a tuk-tuk on a rain-slick strip, wheels spin, the crowd roars, synthwave color grade

Seedance 2.5

0–2s: close-up of a barista's hands tamping espresso, warm tungsten light. 2–4s: milk pours into the cup, a rosetta forms in slow motion. 4–5s: she slides the cup across the bar toward camera and smiles, shallow depth of field

Wide shot of a mountain lake at dawn, mist lifting off the water, a loon calls and the sound echoes, a fish breaks the surface with a soft splash, slow push-in, natural ambience on frame

0–2s: a skateboarder drops into an empty concrete bowl at golden hour, low handheld follow. 2–4s: the camera swings around as she carves the wall, sparks of dust in backlight. 4–6s: she pops out and lands a clean stop, dust settling, one continuous shot, no cuts

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