FLUX 3 Max AI

Turns prompts or stills into 5–20 second videos with sound

FLUX 3 Max AI is an independent web app that turns a written prompt or an uploaded still into a short video with picture and sound, and also gives access to a set of third-party image and video models through its own interface. It is not the official site of the model makers it names; it is a separate product that sells access to those models with a credit system.

The site is built around FLUX 3 Max, which it describes as the more prompt-faithful version of FLUX 3 video for final takes. The company cites preliminary Artificial Analysis Video Arena results that place FLUX 3 Max tied for first in image to video with an Elo score of 1139. Alongside the generator there is an Agent mode for refining an idea in conversation and a prompt guide with copyable examples.

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Starts at: $19.90 / month
Free plan: Yes
Platforms: web
Category: AI Video Generator

What FLUX 3 Max AI does

Text to video

Describe the subject, the action, the camera move and the sound of the place, and the model builds the whole shot from those words. From text you can pick a frame shape anywhere from 9:16 to 21:9.

First and last frame control

Upload a JPG, PNG or WebP as the opening frame and the clip carries that image's framing, colours and characters forward; add a second still as the closing frame when the shot has to end on a packshot or title card. Image-based clips keep the shape of the uploaded frame.

Sound in the same run

Write dialogue in quotes and describe the room, and the voices and ambience come out with the picture rather than in a separate step. The site's talk-show sample pairs a host's line, laughter and background noise with the visuals.

Length and resolution

Clips run from 5 to 20 seconds at 720p or 1080p. The site suggests drafting short at 720p while you find the shot, then raising length or resolution for the version you keep.

Agent mode

A conversational mode where you describe the idea and keep refining it in back-and-forth messages instead of rewriting one long prompt.

Prompt guide with examples

A guide collects official example prompts — establishing shots, wildlife close-ups, light as the subject — each shown with the clip it produced, plus notes on what to change when a take goes wrong.

How to use FLUX 3 Max AI

1Sign up free and start with the starter credits; no card is required.
2Pick a mode: text to video, image to video, reference to video or video to video.
3Write one unbroken take: who is on screen, what they do from start to end, where the camera goes, and the lines or sounds that belong in it.
4Set duration (5 to 20 seconds) and resolution (720p or 1080p), and upload a start frame plus an optional end frame if you are working from a picture.
5Run it, compare takes in your assets, change one detail in the prompt and run again.

Popular for

Solo creators testing a shot

Draft at 5 seconds and 720p to try an establishing shot or a scene you could never film, then commit credits to a longer or higher-resolution final only once the take works.

Animating product photos and portraits

When the opening frame's look has to hold through the move, upload the still as the first frame and describe only what changes after that moment.

Scripted dialogue scenes

Write who talks, the exact words and what the room sounds like, and get the lines and ambience back with the picture in one clip.

FLUX 3 Max AI pricing

Freemium

Free$0

Basic$19.90/ month

Standard$39.90/ month

Pro$99.90/ month

Basic$178.80/ year · billed yearly

Standard$358.80/ year · billed yearly

Pro$838.80/ year · billed yearly

There is a free tier with starter credits and no card required.
Basic is $19.90 per month, Standard $39.90 per month and Pro $99.90 per month, billed monthly.
Billed yearly, Basic is $178.80 per year, Standard $358.80 per year and Pro $838.80 per year.
Monthly plans list 1,000, 2,500 and 7,500 credits respectively (including a limited-time bonus); the yearly versions list 12,000, 30,000 and 78,000 credits.
Failed runs are refunded automatically and you can cancel anytime.

Pros

Fast drafts: in launch tests from fal Research and Black Forest Labs, a 10-second 720p clip took about 12 seconds of model time, against over two minutes for the original FLUX 3.
Free starter credits let you try the generator before paying, with no card required.
Failed runs are refunded automatically, so a bad take does not eat your credits.
Every paid plan includes all models, HD resolution, batch generation and no watermark on images.
Paid plans come with a commercial use license.

Cons

Web only — there is no desktop or mobile app.
Credits are the real limit: Basic's 1,000 credits work out to roughly 41 videos at default settings.
The free tier is small: 10 starter credits, up to 5 images, and AI agent chat capped at 10 messages a day.
It is an independent interface to third-party models, not the official site of the model makers.

FLUX 3 Max AI FAQ

Is FLUX 3 Max AI free?

You can start free with starter credits and no card, which covers a few images and a limited amount of agent chat. Paid plans start at $19.90 per month.

What is FLUX 3 Max AI used for?

Making short videos with picture and sound from a written prompt or an uploaded still, and generating images with the other models listed on the site.

Is FLUX 3 Max AI the official FLUX site?

No. It is an independent product that provides access to third-party AI models through its own interface, and it states it is not affiliated with, endorsed by or sponsored by Black Forest Labs.

How is FLUX 3 Max different from FLUX 3?

The site describes FLUX 3 Max as the more prompt-faithful version of FLUX 3 video, meant for final takes, and keeps the original FLUX 3 available for comparison.