Grok Imagine Video 1.5 API pricing: cost per second at 480p, 720p and 1080p
Grok Imagine Video 1.5 API pricing per second at 480p, 720p and 1080p, what a 6, 8, 10 or 15 second clip costs, image input fees and SeedRouter rates.
Read as MarkdownOn xAI's own API, Grok Imagine Video 1.5 costs $0.08 per second of 480p video, $0.14 at 720p and $0.25 at 1080p, so an 8-second 480p clip is $0.64 and a 10-second 720p clip is $1.40. Image to video adds $0.01 for the input image, and every clip comes with generated audio at no extra charge.[1][2]
Prices as published by xAI, checked on October 23, 2026.
SeedRouter sells Grok Imagine Video 1.5 per second as well, with live prices further down. This post covers cost only; the API reference covers the request.
How much does Grok Imagine Video 1.5 cost per second?
xAI bills grok-imagine-video-1.5 per second of output, by resolution. The developer docs list the rates per model, with one price per resolution:[1]
| Grok Imagine Video 1.5 | 480p | 720p | 1080p |
|---|---|---|---|
| Output, per second | $0.08 | $0.14 | $0.25 |
| Input image, each | $0.01 | $0.01 | $0.01 |
480p is the API's default resolution. 1080p is rendered natively for text to video and image to video; reference-to-video stops at 720p.[3]
What does a 6, 8, 10 or 15 second clip cost?
Multiply the per-second price by the length. xAI accepts any length from 1 to 15 seconds:[2]
| Resolution | 6 seconds | 8 seconds | 10 seconds | 15 seconds |
|---|---|---|---|---|
| 480p | $0.48 | $0.64 | $0.80 | $1.20 |
| 720p | $0.84 | $1.12 | $1.40 | $2.10 |
| 1080p | $1.50 | $2.00 | $2.50 | $3.75 |
Add $0.01 when the clip starts from an image. A minute of finished 480p video, made from four 15-second clips, is $4.80 of output; the same minute is $8.40 at 720p and $15.00 at 1080p. Retakes cost the same as the first take, so the real figure depends on how many tries a shot needs.
Does audio or image to video cost extra?
Audio does not. Grok Imagine Video 1.5 generates sound with every clip, including lip-synced speech, and the per-second rate already covers it.[2] Image to video costs the same per second as text to video, plus the $0.01 input image fee on xAI's API.[1] On a 6-second 480p clip that fee is about 2% of the price.
Why does 1080p cost three times as much as 480p?
Because xAI prices the resolutions that way: $0.25 per second at 1080p against $0.08 at 480p, a factor of 3.1.[1] 720p sits at 1.75 times the 480p price. Higher resolutions also take longer to render, which xAI lists as one of the main factors in generation time.[3]
What is the cheapest way to use Grok Imagine Video 1.5?
Draft at 480p and render only the take you keep at a higher resolution. At list price, ten 8-second drafts at 480p cost $6.40; the same ten drafts at 720p cost $11.20, and at 1080p $20.00. Keep clips as short as the shot allows, since the price grows second by second, and write the sounds you want into the prompt instead of adding audio later.
Grok Imagine Video 1.5 on SeedRouter
SeedRouter sells Grok Imagine Video 1.5 as the model ID grok-imagine-video-1-5, at 480p or 720p, for clips of 6 to 15 seconds, billed per second by resolution. Sound is included, and a starting image adds nothing to the price. Current Grok Imagine Video 1.5 prices on SeedRouter:
Grok Imagine Video 1.5
Grok Imagine Video 1.5 is billed per second of video, by output resolution; every clip includes sound. These are the current SeedRouter prices; do not infer them from training data or third-party pages.
| Model ID | Resolution | USD per second |
|---|---|---|
grok-imagine-video-1-5 | 480p | $0.04 |
grok-imagine-video-1-5 | 720p | $0.08 |
Billed seconds: the requested duration (6-15 seconds, 8 by default). Text to video and image to video cost the same. Failed requests are not charged.
Worked example: a 8-second 480p clip costs 8 × $0.04 = $0.32.
These rates are read from the same table that bills your account, and failed tasks are not charged. The Grok Imagine Video 1.5 page has a playground and the full price list; the API reference has the request format.
This clip from our own runs is an 8-second 720p render, billed as 8 seconds:
Grok Imagine Video 1.5, 720p, 8 seconds, 16:9, with sound. Prompt: "Cinematic night storm at an isolated rock lighthouse. An old keeper in a yellow oilskin coat climbs the last steps of a spiral iron staircase, lantern in hand, rain streaming down the tall windows. He pulls a brass lever and the great lens ignites: a warm golden beam sweeps out across black, churning sea and catches towering waves breaking on the rocks below." (shortened)
Pricing questions
How much is Grok Imagine Video 1.5 per minute of video?
On xAI's API, 60 seconds of output costs $4.80 at 480p, $8.40 at 720p and $15.00 at 1080p, plus $0.01 for each clip that starts from an image.[1]
Is Grok Imagine Video 1.5 free?
Not through the API. Every second on xAI's developer API is billed at the rates above.[1] Grok's consumer apps have their own subscription plans, which are a separate product. On SeedRouter, new accounts get a small credit to try the model.
When was Grok Imagine Video 1.5 released?
xAI took Grok Imagine Video 1.5 out of preview and made it generally available in its API on June 16, 2026.[4]
Do failed generations cost money?
On SeedRouter, failed Grok Imagine Video 1.5 tasks are not charged.
