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Video model comparison · 2 models · Updated Nov 2, 2026

FLUX 3 Video vs Grok Imagine Video 1.5 Lite

Lowest entry price: Grok Imagine Video 1.5 Lite · Longest clips: FLUX 3 Video · Highest resolution: FLUX 3 Video. Not enough arena votes yet for a quality score, so this is a spec comparison.

  1. Black Forest Labs

    FLUX 3 Video

    Released Aug 4, 2026

    • Text to video
    • Image to video
    • Video editing
    • Native audio
    • Arena1,493
    • From$0.17/s
    • Max length20 s
    Full specs Remove FLUX 3 Video

  2. xAI

    Grok Imagine Video 1.5 Lite

    Released Oct 1, 2026New

    • Text to video
    • Image to video
    • Arena—
    • From$0.02/s
    • Max length15 s
    Full specs Remove Grok Imagine Video 1.5 Lite

  3. Add a model

    Make it a three-way comparison.

01 — At a glance

Where they differ

Quality is the arena score from blind, side-by-side human votes. Price, length and resolution come from each lab’s own listings.

  • Lowest entry priceGrok Imagine Video 1.5 LiteFLUX 3 Video from $0.17/s (720p) · Grok Imagine Video 1.5 Lite from $0.02/s (480p)
  • Longest clipsFLUX 3 VideoFLUX 3 Video: 5–20 s · Grok Imagine Video 1.5 Lite: 1–15 s
  • Highest resolutionFLUX 3 VideoFLUX 3 Video: 4K · Grok Imagine Video 1.5 Lite: 1080p
  • NewestGrok Imagine Video 1.5 LiteFLUX 3 Video Aug 4, 2026 · Grok Imagine Video 1.5 Lite Oct 1, 2026
  • Widest inputsFLUX 3 VideoFLUX 3 Video: Text prompts, Reference images, Video · Grok Imagine Video 1.5 Lite: Text prompts, Reference images
  • Native audioFLUX 3 VideoGenerates an audio track with the video: FLUX 3 Video yes · Grok Imagine Video 1.5 Lite no
  • Image to videoBoth animate imagesStarts from an uploaded image: FLUX 3 Video yes · Grok Imagine Video 1.5 Lite yes
  • Self-hostingNo open weightsBoth are available only through APIs and apps
  • Most API hostsGrok Imagine Video 1.5 LiteFLUX 3 Video: 1 · Grok Imagine Video 1.5 Lite: 2
02 — Side by side

Every spec in one table

Dashes mean the data is not published.

FLUX 3 Video vs Grok Imagine Video 1.5 Lite specifications side by side
SpecificationFLUX 3 VideoBlack Forest LabsGrok Imagine Video 1.5 LitexAI
Quality (blind human votes)
Text to video arenaElo-style score · higher is better1,493 ±17#3 of 48 · 1,302 votes—
Image to video arenaElo-style score · higher is better1,449 ±5#9 of 48 · 37,042 votes—
Price
Starting price$0.17/s 720p$0.02/s 480p (best)
Top price$0.41/s 4K$0.14/s 1080p
10-second clip$1.70at the starting rate$0.20at the starting rate (best)
Extra charges—$0.01 per input image
How it is billedPer secondPer second
Output
ProducesVideo with soundVideo
Resolutions720p · 1080p · 2K · 4K480p · 720p · 1080p
Highest resolution4K (best)1080p
Clip length5–20 s1–15 s
Longest clip20 s (best)15 s
SoundOptionalNo
Frame controlFirst and last frameFirst frame only
Inputs
Text promptsYesYes
Start image (image to video)YesYes
Video inputYesNo
Audio inputNoNo
ReferencesA video to continue—
Access
WeightsProprietaryProprietary
API model ID—grok-imagine-video-1.5-lite
API hosts12 (best)
ReleasedAug 4, 2026Oct 1, 2026
03 — Questions

Which should you choose?

Which is better, FLUX 3 Video or Grok Imagine Video 1.5 Lite?

Neither model has enough arena votes for a reliable quality score yet, so this page compares specs only. Run the same three or four prompts through each and judge the results.

Which is cheaper?

FLUX 3 Video costs from $0.17/s (720p), up to $0.41/s (4K); Grok Imagine Video 1.5 Lite costs from $0.02/s (480p), up to $0.14/s (1080p). A 10-second clip at the lowest rate: FLUX 3 Video $1.70, Grok Imagine Video 1.5 Lite $0.20. Prices are list rates and change often; check the lab before budgeting.

How long can the videos be, and at what resolution?

FLUX 3 Video: 5–20 s, 720p / 1080p / 2K / 4K; Grok Imagine Video 1.5 Lite: 1–15 s, 480p / 720p / 1080p.

What is the difference between FLUX 3 Video and Grok Imagine Video 1.5 Lite?

FLUX 3 Video is a video model from Black Forest Labs (Aug 4, 2026), taking text prompts, reference images and video and producing video with sound. Grok Imagine Video 1.5 Lite is a video model from xAI (Oct 1, 2026), taking text prompts and reference images and producing video.

Which is newer?

FLUX 3 Video Aug 4, 2026; Grok Imagine Video 1.5 Lite Oct 1, 2026.

Which generates video with sound?

Generates an audio track with the video: FLUX 3 Video yes; Grok Imagine Video 1.5 Lite no.

Can I run any of these on my own hardware?

No open weights. Both are available only through APIs and apps.

04 — Keep comparing

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