ClipCost · xAI API (Grok Imagine) pricing · Seedance pricing · Runway pricing · Pika pricing · Grok Imagine cost · Grok Imagine vs Veo cost · Grok Imagine vs Kling cost · Grok Imagine vs Wan cost · Grok Imagine vs LTX cost · Grok Imagine vs Hailuo cost · Seedance 2.5 cost · Seedance vs LTX cost · Seedance vs Wan cost · Seedance vs Veo cost · Seedance vs Kling cost · AI video API pricing · Published Oct 30, 2026 · Prices checked Oct 30, 2026 · Ranked rates from verified data (JSON)

Grok Imagine vs Seedance cost: xAI Grok Imagine 1.5 and 1.5 Lite vs ByteDance Seedance 2.0, 2.0 Fast, 2.0 Mini and 2.5, per second and per clip

xAI’s Grok Imagine Video 1.5 / 1.5 Lite and ByteDance’s Seedance (2.0, 2.0 Fast, 2.0 Mini, 2.5) both sell video by the second through an API and inside Runway. Here is every verified rate — the xAI API, BytePlus ModelArk, the Runway API, the Runway app and Pika — priced per 10s, 20s, 30s and 60s clip with the retries you will actually need.

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Affiliate disclosure: some links on ClipCost may be affiliate links; if you sign up we may earn a commission at no extra cost to you. It never changes the numbers — every price below comes from the official pages listed under Sources.

Quick answer

Grok Imagine is cheaper than Seedance in 14 of 16 match-ups — at 480p, 720p, 1080p and on Runway. Grok Imagine 1.5 Lite on xAI’s API is $0.02 per second at 480p and $0.03 at 720p, audio included — $1.80 and $2.70 per usable 30-second clip (3 attempts; #1 and #5= of all 210 rates we rank). Seedance’s cheapest is Seedance 2.0 Mini on BytePlus ModelArk: $0.036 per second at 480p ($3.24, #11) and $0.076 at 720p ($6.84, about 2.5× Grok Lite). At native 1080p Grok Imagine 1.5 ($0.25, $22.50) beats Seedance 2.0 ($0.374, $33.66) and Seedance 2.5 ($51.17). Seedance’s one win is the flagship tier at 480p: Seedance 2.0 at $0.07 per second ($6.30) vs Grok Imagine 1.5 at $0.08 ($7.20); in the Runway app the two tie at 720p (16 credits per second each). Only Seedance offers 4K and 30-second single generations.

Checked Oct 30, 2026: Grok Imagine Video 1.5 / 1.5 Lite rates unchanged on xAI API pricing; Seedance 2.0 / Fast / Mini / 2.5 per-video prices unchanged on BytePlus ModelArk pricing; Runway API grok_imagine_* and seedance2* rates unchanged on Runway API pricing; Grok Imagine 1.5 and Seedance app credits unchanged on the Runway Academy credits page; Runway Standard / Pro / Max plan prices unchanged on runway.com/pricing; Pika Seedance 2.5 credits and Starter plan unchanged on pika.art/pricing. No data changes.

Basis: usable = 3 attempts (1 + 2 retries) at the list price per second, as in our calculator. BytePlus prices Seedance per 5-second video (no video input); ClipCost divides by 5. Rank = position among the 210 verified usable-30s rates in our verified data (ties share a rank); API # = position among the 138 rates on AI video API pricing. Runway app rows use Standard annual credits ($12/mo for 625 = $0.0192 per credit) except Seedance 2.5, which Runway offers on Pro and Max only (Pro annual $28 for 2,250 = $0.0124); Pika uses Starter annual credits ($8/mo for 900 = $0.0089 per credit). Cost only — no quality ranking.

Grok Imagine vs Seedance head-to-head (usable 30-second clip)

Use caseGrok Imagine: route · rate · usable 30s (rank)Seedance: route · rate · usable 30s (rank)CheaperNotes
Cheapest 480p (cheapest rate each)Grok Imagine 1.5 Lite · 480p · xAI API · $0.02/sec · $1.80 (#1)Seedance 2.0 Mini · 480p · BytePlus ModelArk · $0.036/sec · $3.24 (#14)Grok Imagine, $1.44 lessGrok Imagine 1.5 Lite vs Seedance 2.0 Mini, the cheapest rate on each side
Cheapest 720pGrok Imagine 1.5 Lite · 720p · xAI API · $0.03/sec · $2.70 (#5=)Seedance 2.0 Mini · 720p · BytePlus ModelArk · $0.076/sec · $6.84 (#55)Grok Imagine, $4.14 lessGrok Imagine 1.5 Lite vs Seedance 2.0 Mini
Fast tier, 480pGrok Imagine 1.5 Lite · 480p · xAI API · $0.02/sec · $1.80 (#1)Seedance 2.0 Fast · 480p · BytePlus ModelArk · $0.056/sec · $5.04 (#32)Grok Imagine, $3.24 lessGrok Imagine 1.5 Lite vs Seedance 2.0 Fast
Fast tier, 720pGrok Imagine 1.5 Lite · 720p · xAI API · $0.03/sec · $2.70 (#5=)Seedance 2.0 Fast · 720p · BytePlus ModelArk · $0.12/sec · $10.80 (#95=)Grok Imagine, $8.10 lessGrok Imagine 1.5 Lite vs Seedance 2.0 Fast
Cheapest 1080pGrok Imagine 1.5 Lite · 1080p (720p upscaled) · xAI API · $0.14/sec · $12.60 (#112=)Seedance 2.0 · 1080p · BytePlus ModelArk · $0.374/sec · $33.66 (#188)Grok Imagine, $21.06 lessGrok Lite 1080p is 720p upscaled; Seedance Mini / Fast stop at 720p, so Seedance 2.0 is its cheapest 1080p
Flagship, 480pGrok Imagine 1.5 · 480p · xAI API · $0.08/sec · $7.20 (#56=)Seedance 2.0 · 480p · BytePlus ModelArk · $0.07/sec · $6.30 (#46=)Seedance, $0.90 lessGrok Imagine 1.5 vs Seedance 2.0 ($0.35 per 5s video on BytePlus)
Flagship, 720pGrok Imagine 1.5 · 720p · xAI API · $0.14/sec · $12.60 (#112=)Seedance 2.0 · 720p · BytePlus ModelArk · $0.152/sec · $13.68 (#127=)Grok Imagine, $1.08 lessGrok Imagine 1.5 vs Seedance 2.0
Flagship, native 1080pGrok Imagine 1.5 · 1080p · xAI API · $0.25/sec · $22.50 (#163=)Seedance 2.0 · 1080p · BytePlus ModelArk · $0.374/sec · $33.66 (#188)Grok Imagine, $11.16 lessGrok Imagine 1.5 vs Seedance 2.0
Newest models, 720pGrok Imagine 1.5 · 720p · xAI API · $0.14/sec · $12.60 (#112=)Seedance 2.5 · 720p · BytePlus ModelArk · $0.2312/sec · $20.81 (#154)Grok Imagine, $8.21 lessGrok Imagine 1.5 vs Seedance 2.5
Newest models, 1080pGrok Imagine 1.5 · 1080p · xAI API · $0.25/sec · $22.50 (#163=)Seedance 2.5 · 1080p · BytePlus ModelArk · $0.5686/sec · $51.17 (#202)Grok Imagine, $28.67 lessGrok Imagine 1.5 vs Seedance 2.5
Runway API, cheapest eachgrok_imagine_1_5_lite · 480p · Runway API · 2 cr/sec × $0.01 · $1.80 (not ranked; would be #1=)seedance2_mini · 480p · Runway API · 7 cr/sec × $0.01 · $6.30 (not ranked; would be #46=)Grok Imagine, $4.50 lessgrok_imagine_1_5_lite 480p 2 cr/s vs seedance2_mini 480p 7 cr/s
Runway API, 720pgrok_imagine_1_5_lite · 720p · Runway API · 3 cr/sec × $0.01 · $2.70 (not ranked; would be #5=)seedance2_mini · 720p · Runway API · 15 cr/sec × $0.01 · $13.50 (not ranked; would be #121=)Grok Imagine, $10.80 lessgrok_imagine_1_5_lite 720p 3 cr/s vs seedance2_mini 720p 15 cr/s
Runway API, flagship 1080pgrok_imagine_1_5 · 1080p · Runway API · 29 cr/sec × $0.01 · $26.10 (not ranked; would be #173)seedance2 · 1080p · Runway API · 40 cr/sec × $0.01 · $36.00 (not ranked; would be #193=)Grok Imagine, $9.90 lessgrok_imagine_1_5 1080p 29 cr/s vs seedance2 1080p 40 cr/s
Inside the Runway app, cheapest eachGrok Imagine 1.5 · 480p · Runway app (Standard) · 10 cr/sec × $0.0192 · $17.28 (not ranked; would be #139=)Seedance 2.0 Mini · 480p/720p · Runway app (Standard) · 16 cr/sec × $0.0192 · $27.65 (#177=)Grok Imagine, $10.37 lessGrok Imagine 1.5 480p 10 cr/s vs Seedance 2.0 Mini 16 cr/s (Standard annual credits)
Inside the Runway app, 720pGrok Imagine 1.5 · 720p · Runway app (Standard) · 16 cr/sec × $0.0192 · $27.65 (not ranked; would be #177=)Seedance 2.0 Mini · 480p/720p · Runway app (Standard) · 16 cr/sec × $0.0192 · $27.65 (#177=)TieGrok Imagine 1.5 720p 16 cr/s vs Seedance 2.0 Mini 16 cr/s
Inside the Runway app, 1080pGrok Imagine 1.5 · 1080p · Runway app (Standard) · 29 cr/sec × $0.0192 · $50.11 (not ranked; would be #201=)Seedance 2.0 · 1080p · Runway app (Standard) · 40 cr/sec × $0.0192 · $69.12 (#207=)Grok Imagine, $19.01 lessGrok Imagine 1.5 1080p 29 cr/s vs Seedance 2.0 1080p 40 cr/s
4KNot offered (Grok Imagine tops out at 1080p)Seedance 2.0 · 4K · BytePlus ModelArk · $0.778/sec · $70.02Seedance onlyNot counted; official BytePlus price ($3.89 per 5s video), not in our ranking
One 30-second generationNot possible (Grok Imagine makes 1–15s per generation)Seedance 2.5 · BytePlus ModelArk · up to 30s per generationSeedance onlyNot counted; per-second price is the same either way

Grok Imagine wins 14 of 16 counted match-ups, Seedance 1 (flagship 480p), 1 tie (Runway app 720p); 4K and single 30-second generations (Seedance only) are not counted. Every Grok Imagine rate includes generated audio; BytePlus does not list a separate Seedance audio price.

Every Grok Imagine and Seedance route, cheapest first

Rank (of 210)API # (of 146)FamilyRouteModelRate30s tryUsable 30sAudio
Not ranked (would be #1=)#1=Grok ImagineRunway APIgrok_imagine_1_5_lite · 480p2 cr/sec × $0.01$0.60$1.80Yes (on by default, same price)
1#1=Grok ImaginexAI APIGrok Imagine 1.5 Lite · 480p$0.02/sec$0.60$1.80Yes (on by default, same price)
Not ranked (would be #5=)#5=Grok ImagineRunway APIgrok_imagine_1_5_lite · 720p3 cr/sec × $0.01$0.90$2.70Yes (on by default, same price)
5=#5=Grok ImaginexAI APIGrok Imagine 1.5 Lite · 720p$0.03/sec$0.90$2.70Yes (on by default, same price)
14#11SeedanceBytePlus ModelArkSeedance 2.0 Mini · 480p$0.036/sec$1.08$3.24Not stated in price table
32#27SeedanceBytePlus ModelArkSeedance 2.0 Fast · 480p$0.056/sec$1.68$5.04Not stated in price table
46=#37=SeedanceBytePlus ModelArkSeedance 2.0 · 480p$0.07/sec$2.10$6.30Not stated in price table
Not ranked (would be #46=)#37=SeedanceRunway APIseedance2_mini · 480p7 cr/sec × $0.01$2.10$6.30Not stated
55#44SeedanceBytePlus ModelArkSeedance 2.0 Mini · 720p$0.076/sec$2.28$6.84Not stated in price table
56=#45=Grok ImaginexAI APIGrok Imagine 1.5 · 480p$0.08/sec$2.40$7.20Yes (on by default, same price)
Not ranked (would be #75=)#55=Grok ImagineRunway APIgrok_imagine_1_5 · 480p10 cr/sec × $0.01$3.00$9.00Yes (on by default, same price)
89#64SeedanceBytePlus ModelArkSeedance 2.5 · 480p$0.1028/sec$3.08$9.25Not stated in price table
Not ranked (would be #90)#65SeedanceRunway APIseedance2_fast · 480p11 cr/sec × $0.01$3.30$9.90Not stated on API page
95=#70=SeedanceBytePlus ModelArkSeedance 2.0 Fast · 720p$0.12/sec$3.60$10.80Not stated in price table
Not ranked (would be #112=)#82=Grok ImagineRunway APIgrok_imagine_1_5_lite · 1080p14 cr/sec × $0.01$4.20$12.60Yes (on by default, same price)
112=#82=Grok ImaginexAI APIGrok Imagine 1.5 · 720p$0.14/sec$4.20$12.60Yes (on by default, same price)
112=#82=Grok ImaginexAI APIGrok Imagine 1.5 Lite · 1080p (720p upscaled)$0.14/sec$4.20$12.60Yes (on by default, same price)
Not ranked (would be #112=)#82=SeedanceRunway APIseedance2 · 480p14 cr/sec × $0.01$4.20$12.60Not stated on API page
Not ranked (would be #121=)#93=SeedanceRunway APIseedance2_mini · 720p15 cr/sec × $0.01$4.50$13.50Not stated
127=#99SeedanceBytePlus ModelArkSeedance 2.0 · 720p$0.152/sec$4.56$13.68Not stated in price table
Not ranked (would be #129=)#100=Grok ImagineRunway APIgrok_imagine_1_5 · 720p16 cr/sec × $0.01$4.80$14.40Yes (on by default, same price)
Not ranked (would be #139=)—Grok ImagineRunway app (Standard)Grok Imagine 1.5 · 480p10 cr/sec × $0.0192$5.76$17.28Yes (on by default, same price)
Not ranked (would be #145=)#108=SeedanceRunway APIseedance2_5 · 480p20 cr/sec × $0.01$6.00$18.00Not stated on API page
148—SeedancePika (Starter annual)Seedance 2.5 · 720p (5s generations)122 cr / 5s × $0.0089$6.51$19.52Not stated
154#113SeedanceBytePlus ModelArkSeedance 2.5 · 720p$0.2312/sec$6.94$20.81Not stated in price table
Not ranked (would be #155=)#114=SeedanceRunway APIseedance2_fast · 720p24 cr/sec × $0.01$7.20$21.60Not stated on API page
159—SeedanceRunway app (Pro; not on Standard)Seedance 2.5 · 480p20 cr/sec × $0.0124$7.47$22.40Yes (Runway: with audio)
163=#119=Grok ImaginexAI APIGrok Imagine 1.5 · 1080p$0.25/sec$7.50$22.50Yes (on by default, same price)
Not ranked (would be #173)#125Grok ImagineRunway APIgrok_imagine_1_5 · 1080p29 cr/sec × $0.01$8.70$26.10Yes (on by default, same price)
Not ranked (would be #173=)#126=SeedanceRunway APIseedance2 · 720p30 cr/sec × $0.01$9.00$27.00Not stated on API page
Not ranked (would be #173=)#126=SeedanceRunway APIseedance2_5 · 720p30 cr/sec × $0.01$9.00$27.00Not stated on API page
Not ranked (would be #177=)—Grok ImagineRunway app (Standard)Grok Imagine 1.5 · 720p16 cr/sec × $0.0192$9.22$27.65Yes (on by default, same price)
177=—SeedanceRunway app (Standard)Seedance 2.0 Mini · 480p/720p16 cr/sec × $0.0192$9.22$27.65Not stated
187—SeedanceRunway app (Pro; not on Standard)Seedance 2.5 · 720p30 cr/sec × $0.0124$11.20$33.60Yes (Runway: with audio)
188#132SeedanceBytePlus ModelArkSeedance 2.0 · 1080p$0.374/sec$11.22$33.66Not stated in price table
Not ranked (would be #193=)#135=SeedanceRunway APIseedance2 · 1080p40 cr/sec × $0.01$12.00$36.00Not stated on API page
Not ranked (would be #201=)—Grok ImagineRunway app (Standard)Grok Imagine 1.5 · 1080p29 cr/sec × $0.0192$16.70$50.11Yes (on by default, same price)
201—SeedanceRunway app (Standard)Seedance 2.0 Fast · 480p/720p29 cr/sec × $0.0192$16.70$50.11Yes (Runway: with audio)
202#143SeedanceBytePlus ModelArkSeedance 2.5 · 1080p$0.5686/sec$17.06$51.17Not stated in price table
Not ranked (would be #206)#145SeedanceRunway APIseedance2_5 · 1080p68 cr/sec × $0.01$20.40$61.20Not stated on API page
Not ranked (would be #206)—SeedanceRunway app (Standard)Seedance 2.0 · 480p/720p36 cr/sec × $0.0192$20.74$62.21Yes (Runway: with audio)
207=—SeedanceRunway app (Standard)Seedance 2.0 · 1080p40 cr/sec × $0.0192$23.04$69.12Yes (Runway: with audio)
Not ranked (would be #209)—SeedanceBytePlus ModelArkSeedance 2.0 · 4K$0.778/sec$23.34$70.02Not stated in price table
210—SeedanceRunway app (Pro; not on Standard)Seedance 2.5 · 1080p68 cr/sec × $0.0124$25.39$76.16Yes (Runway: with audio)
Not ranked (would be #211)#146SeedanceRunway APIseedance2 · 4K150 cr/sec × $0.01$45.00$135.00Not stated on API page
Not ranked (would be #211)—SeedanceRunway app (Standard)Seedance 2.0 · 4K150 cr/sec × $0.0192$86.40$259.20Yes (Runway: with audio)

Runway app rows on Max annual credits ($0.008 per credit): Grok Imagine 1.5 480p $7.20, 720p $11.52; Seedance 2.0 Mini $11.52, Seedance 2.0 1080p $28.80, Seedance 2.5 720p $21.60. Grok Imagine 1.5 app rows (image-to-video, per the Runway Academy credits page), Seedance 2.0 at 480p / 720p (36/sec) and 4K (150/sec) in the Runway app and Seedance 2.0 4K on BytePlus are official prices not in our usable-30s ranking (“would be #”); Runway API rows are ranked only among API rates. Runway charges +1 credit per image or audio reference for Grok; Runway API minimums per generation are 28 (seedance2_mini), 44 (seedance2_fast), 56 (seedance2) and 80 credits (seedance2_5, plus 10 / 15 / 34 credits per second of input video). Flag: the Runway Academy page lists Grok Imagine 1.5 Lite in the app at 10 / 15 / 70 credits per second while the Runway API lists 2 / 3 / 14; we could not confirm which applies in the app, so those rows are left out. Pika lists only a 5-second Seedance 2.5 price, so longer clips are costed as 5-second generations.

Cost per 10s, 20s, 30s and 60s clip: try and usable

ModelRoute10s try10s usable20s try20s usable30s try30s usable60s try60s usable
Grok Imagine: Grok Imagine 1.5 Lite · 480pxAI API$0.20$0.60$0.40$1.20$0.60$1.80$1.20$3.60
Grok Imagine: Grok Imagine 1.5 Lite · 720pxAI API$0.30$0.90$0.60$1.80$0.90$2.70$1.80$5.40
Seedance: Seedance 2.0 Mini · 480pBytePlus ModelArk$0.36$1.08$0.72$2.16$1.08$3.24$2.16$6.48
Seedance: Seedance 2.0 Fast · 480pBytePlus ModelArk$0.56$1.68$1.12$3.36$1.68$5.04$3.36$10.08
Seedance: Seedance 2.0 · 480pBytePlus ModelArk$0.70$2.10$1.40$4.20$2.10$6.30$4.20$12.60
Seedance: Seedance 2.0 Mini · 720pBytePlus ModelArk$0.76$2.28$1.52$4.56$2.28$6.84$4.56$13.68
Grok Imagine: Grok Imagine 1.5 · 480pxAI API$0.80$2.40$1.60$4.80$2.40$7.20$4.80$14.40
Seedance: Seedance 2.5 · 480pBytePlus ModelArk$1.03$3.08$2.06$6.17$3.08$9.25$6.17$18.50
Seedance: Seedance 2.0 Fast · 720pBytePlus ModelArk$1.20$3.60$2.40$7.20$3.60$10.80$7.20$21.60
Grok Imagine: Grok Imagine 1.5 Lite · 1080p (720p upscaled)xAI API$1.40$4.20$2.80$8.40$4.20$12.60$8.40$25.20
Grok Imagine: Grok Imagine 1.5 · 720pxAI API$1.40$4.20$2.80$8.40$4.20$12.60$8.40$25.20
Seedance: Seedance 2.0 · 720pBytePlus ModelArk$1.52$4.56$3.04$9.12$4.56$13.68$9.12$27.36
Seedance: Seedance 2.5 · 720pBytePlus ModelArk$2.31$6.94$4.62$13.87$6.94$20.81$13.87$41.62
Grok Imagine: Grok Imagine 1.5 · 1080pxAI API$2.50$7.50$5.00$15.00$7.50$22.50$15.00$45.00
Seedance: Seedance 2.0 · 1080pBytePlus ModelArk$3.74$11.22$7.48$22.44$11.22$33.66$22.44$67.32
Seedance: Seedance 2.5 · 1080pBytePlus ModelArk$5.69$17.06$11.37$34.12$17.06$51.17$34.12$102.35

Per-second billing for every row (BytePlus 5-second price ÷ 5). Grok Imagine makes 1–15 seconds per generation (default 8, xAI video generation guide); Seedance 2.0 / Fast / Mini make 4–15 seconds and Seedance 2.5 up to 30 (BytePlus ModelArk pricing). Longer clips are stitched from several generations at the same per-second price.

Which to pick (on cost)

Related: calculator · Runway vs Kling vs Pika vs Veo · AI video pricing comparison · AI video API pricing · Cheapest AI video API · Cheapest AI video generator · Grok Imagine cost · Grok Imagine vs Veo cost · Grok Imagine vs Kling cost · Grok Imagine vs Wan cost · Seedance 2.5 cost · Seedance vs LTX cost · Seedance vs Wan cost · Seedance vs Veo cost · Seedance vs Kling cost · Runway API pricing · AI video for TikTok/Shorts cost · FAQ.

Sources (checked Oct 30, 2026)

FAQ

Is Grok Imagine or Seedance cheaper?

Grok Imagine, in almost every match-up we price (checked Oct 30, 2026). Grok Imagine 1.5 Lite on xAI's API is $0.02 per second at 480p and $0.03 at 720p with audio included: $1.80 and $2.70 per usable 30-second clip with 2 retries. Seedance's cheapest rate, Seedance 2.0 Mini on BytePlus ModelArk, is $0.036 per second at 480p ($3.24) and $0.076 at 720p ($6.84, about 2.5 times Grok Lite). Grok Imagine wins 14 of the 16 match-ups, Seedance 1 (Seedance 2.0 480p at $0.07 per second beats Grok Imagine 1.5 480p at $0.08), with 1 tie. Seedance is the only one of the two with 4K and 30-second generations.

How much does a 30-second video cost on Grok Imagine vs Seedance?

With 2 retries (3 attempts), a usable 30-second clip costs $1.80 on Grok Imagine 1.5 Lite 480p, $2.70 at 720p, $12.60 on Grok Imagine 1.5 720p and $22.50 at native 1080p (xAI API, audio included). On BytePlus ModelArk it is $3.24 with Seedance 2.0 Mini 480p, $6.84 at 720p, $10.80 with Seedance 2.0 Fast 720p, $13.68 with Seedance 2.0 720p, $33.66 at 1080p and $20.81 with Seedance 2.5 720p. One 30-second try is a third of that. Grok Imagine makes 1 to 15 seconds per generation, Seedance 2.0 4 to 15 and Seedance 2.5 up to 30.

Which is cheaper at 1080p and 4K, Grok Imagine or Seedance?

At 1080p, Grok Imagine. Native 1080p Grok Imagine 1.5 is $0.25 per second ($22.50 usable 30s) against $0.374 for Seedance 2.0 ($33.66, about 1.5 times as much) and $0.5686 for Seedance 2.5 ($51.17) on BytePlus; Grok Imagine 1.5 Lite's 1080p is $0.14 ($12.60) but is rendered at 720p and upscaled. Seedance 2.0 Mini and Fast stop at 720p. Only Seedance offers 4K: $3.89 per 5-second video for Seedance 2.0 on BytePlus ($0.778 per second, $70.02 usable 30s).

Is Grok Imagine or Seedance cheaper on Runway?

Grok Imagine, with one tie. On the Runway API grok_imagine_1_5_lite costs 2 / 3 / 14 credits per second (480p / 720p / 1080p) at $0.01 a credit, against 7 / 15 for seedance2_mini, so a usable 30-second clip is $2.70 vs $13.50 at 720p; at 1080p grok_imagine_1_5 (29) beats seedance2 (40). In the Runway app Grok Imagine 1.5 (image-to-video) is 10 / 16 / 29 credits per second against 16 for Seedance 2.0 Mini, 29 for 2.0 Fast and 36 / 40 for Seedance 2.0 at 720p / 1080p; on Standard annual credits ($12 for 625) that is $17.28 vs $27.65, and a tie at 720p ($27.65 each). The Runway app lists Grok Imagine 1.5 Lite at 10 / 15 / 70 credits, which conflicts with the API's 2 / 3 / 14, so check the credit cost in the app before you generate.

Do Grok Imagine and Seedance include audio in the price?

Grok Imagine does: xAI charges one price per resolution with generated audio on by default, and generate_audio=false gives a silent clip at the same price, so there is no silent discount. BytePlus prices Seedance per resolution and does not list a separate audio price; Runway describes Seedance 2.0, 2.0 Fast and 2.5 as video with audio (Seedance 2.0 Mini audio is not stated). So with or without sound the comparison is the same: Grok Imagine 1.5 Lite 720p at $0.03 per second against Seedance 2.0 Mini 720p at $0.076.

How do Grok Imagine and Seedance bill you?

xAI bills Grok Imagine in US dollars per second of generated video, one price per resolution (480p, 720p, 1080p), plus $0.01 per input image, for 1 to 15 seconds per generation. Seedance on BytePlus ModelArk is pay-as-you-go per successfully generated video, listed as a price per 5-second video (for example $0.18 for Seedance 2.0 Mini at 480p and $0.76 for Seedance 2.0 at 720p); generations that use video input are token-priced and cost more. ClipCost divides the BytePlus 5-second price by 5 to compare per second. Through Runway both cost credits per second; Pika sells Seedance 2.5 at 122 credits per 5-second 720p clip.

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