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

Grok Imagine Video 1.5 Lite vs FLUX 3 Video

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. 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

  2. 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

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

Every spec in one table

Dashes mean the data is not published.

Grok Imagine Video 1.5 Lite vs FLUX 3 Video specifications side by side
SpecificationGrok Imagine Video 1.5 LitexAIFLUX 3 VideoBlack Forest Labs
Quality (blind human votes)
Text to video arenaElo-style score · higher is better—1,493 ±17#3 of 48 · 1,302 votes
Image to video arenaElo-style score · higher is better—1,449 ±5#9 of 48 · 37,042 votes
Price
Starting price$0.02/s 480p (best)$0.17/s 720p
Top price$0.14/s 1080p$0.41/s 4K
10-second clip$0.20at the starting rate (best)$1.70at the starting rate
Extra charges$0.01 per input image—
How it is billedPer secondPer second
Output
ProducesVideoVideo with sound
Resolutions480p · 720p · 1080p720p · 1080p · 2K · 4K
Highest resolution1080p4K (best)
Clip length1–15 s5–20 s
Longest clip15 s20 s (best)
SoundNoOptional
Frame controlFirst frame onlyFirst and last frame
Inputs
Text promptsYesYes
Start image (image to video)YesYes
Video inputNoYes
Audio inputNoNo
References—A video to continue
Access
WeightsProprietaryProprietary
API model IDgrok-imagine-video-1.5-lite—
API hosts2 (best)1
ReleasedOct 1, 2026Aug 4, 2026
03 — Questions

Which should you choose?

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

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?

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

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

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

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

Grok Imagine Video 1.5 Lite is a video model from xAI (Oct 1, 2026), taking text prompts and reference images and producing video. 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.

Which is newer?

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

Which generates video with sound?

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

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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