Introducing the Flux 3 Max API on Pixazo API: Text, Image and Keyframes to Video with Sound

The Flux 3 Max API is now live on Pixazo API. Flux 3 Max is Black Forest Labs’ new flagship AI video model. It turns a text prompt into a video, animates a still image, and builds a clip from keyframes — with sound, up to 1080p and up to 20 seconds. This post shows what it does, real clips, the endpoints and parameters, pricing, and how to make your first call.

REEL 01 · BLACK FOREST LABS · TEXT / IMAGE / KEYFRAMES TO VIDEO · OCT 2026

Most video models give you one way in: a text prompt. Flux 3 Max gives you three. You can write a prompt, start from an image, or set keyframes and let the model fill the motion between them. Every clip comes with audio, so you get sound as well as picture in one call.

Here is a clip straight from Flux 3 Max through the Pixazo API — one prompt, no editing. Press play, the sound is on.

Flux 3 Max is asynchronous. You send a job, get a request_id back right away, then poll a status URL until the clip is ready. Authentication is one header: Ocp-Apim-Subscription-Key.

Submit a text-to-video job

curl -X POST https://gateway.pixazo.ai/flux-3-max/v1/text-to-video 
  -H "Content-Type: application/json" 
  -H "Ocp-Apim-Subscription-Key: YOUR_KEY" 
  -d '{
    "prompt": "A red panda walks along a mossy log in a sunlit forest",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }'

Response: { "request_id": "flux-3-max_...", "status": "QUEUED" }

Poll until it is ready

curl https://gateway.pixazo.ai/v2/requests/status/REQUEST_ID 
  -H "Ocp-Apim-Subscription-Key: YOUR_KEY"

# when status == COMPLETED, read output.media_url (an mp4 with audio)

Image to video uses the same pattern at POST /flux-3-max/v1/image-to-video. Full samples in HTTP, Python, JavaScript and cURL are on the Flux model page.

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The main inputs are the same across all three modes:

• prompt – what happens in the clip.
• duration – 5 to 20 seconds (default 5).
• resolution – 720p or 1080p (default 720p).
• aspect_ratio – the frame shape, such as 16:9 or 9:16.
• seed – a number for repeatable results.

Image to video adds image_url (the first frame) and an optional end_image_url. Keyframes mode takes a keyframes list of 1 to 10 images. Audio is on by default; turning it off does not change the price.

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You pay only for the seconds you render — no seats, no minimums. New accounts also get a 10% cashback bonus on their first top-up (up to $500).

Suggested Read: Introducing Flux 3 API on Pixazo API

Already using Flux for images? Flux 3 is the image model; Flux 3 Max is the video one, on the same model page. If you are comparing video models, see our launches of Wan 3.0, Magi 2.0 and MiniMax H3.

Suggested Read: Introducing Wan 3.0 API on Pixazo API

Flux 3 Max brings text, image and keyframe video — with sound — to a simple, pay-as-you-go API. Grab a key, send a prompt, poll for the clip, and you have a finished mp4 from $0.17 per second. Full docs and code samples are on the Flux model page.

Suggested Read: Introducing the Magi 2.0 API on Pixazo API

Q. What is the Flux 3 Max API?

Flux 3 Max is Black Forest Labs’ flagship AI video model, available through the Pixazo API. It makes video from a text prompt, animates an image, or builds a clip from keyframes, and every clip includes audio.

Q. How much does Flux 3 Max cost?

Flux 3 Max is billed per second of video: $0.17 per second at 720p and $0.29 per second at 1080p. A 5-second 720p clip costs about $0.85. Audio is included and does not change the price. Billing is pay-as-you-go with no minimums.

Q. How long can a Flux 3 Max video be?

From 5 to 20 seconds, at 720p or 1080p. The defaults are 720p and 5 seconds.

Q. Does Flux 3 Max support image to video?

Yes. Send a start image in image_url, with an optional end image in end_image_url, plus a prompt for the motion. It also supports keyframes to video with 1 to 10 images.

Q. What are the Flux 3 Max API endpoints?

Text to video is POST https://gateway.pixazo.ai/flux-3-max/v1/text-to-video and image to video is POST https://gateway.pixazo.ai/flux-3-max/v1/image-to-video. Both are asynchronous: you get a request_id, poll the status endpoint until COMPLETED, then read output.media_url.