minimax/h3-max/multi-angle/image-to-video

H3 Max Multi Angle turns a single image into a video with precise, keyframe-based control over the camera's orbit, elevation, and distance in 3D space

Inference

Commercial use

Schema AsyncAPI

LLMs

Playground API Examples

About

MiniMax H3 Multi-angle: H3 Max with the resident camera adapter.

1. Calling the API#

Install the client#

The client provides a convenient way to interact with the model API.

npm install --save @fal-ai/client

Migrate to @fal-ai/client

The @fal-ai/serverless-client package has been deprecated in favor of @fal-ai/client. Install the new package and update your imports — see client setup.

Setup your API Key#

Set FAL_KEY as an environment variable in your runtime.

export FAL_KEY="YOUR_API_KEY"

Submit a request#

The client API handles the API submit protocol. It will handle the request status updates and return the result when the request is completed.

import { fal } from "@fal-ai/client";

const result = await fal.subscribe("minimax/h3-max/multi-angle/image-to-video", {
  input: {
    prompt_expansion_mode: "balanced",
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/hailuo23/pro_i2v_in.jpg"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);

2. Authentication#

The API uses an API Key for authentication. It is recommended you set the FAL_KEY environment variable in your runtime when possible.

API Key#

In an environment where you cannot set environment variables, you can configure the API key manually on the client.

import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

Protect your API Key

When running code on the client-side (e.g. in a browser, mobile app or GUI applications), make sure to not expose your FAL_KEY. Instead, use a server-side proxy to make requests to the API. For more information, check out our server-side integration guide.

3. Queue#

Long-running requests

For long-running requests, such as training jobs or models with slower inference times, it is recommended to check the Queue status and rely on Webhooks instead of blocking while waiting for the result.

Submit a request#

The client API provides a convenient way to submit requests to the model.

import { fal } from "@fal-ai/client";

const { request_id } = await fal.queue.submit("minimax/h3-max/multi-angle/image-to-video", {
  input: {
    prompt_expansion_mode: "balanced",
    image_url: "https://storage.googleapis.com/falserverless/example_inputs/hailuo23/pro_i2v_in.jpg"
  },
  webhookUrl: "https://optional.webhook.url/for/results",
});

Fetch request status#

You can fetch the status of a request to check if it is completed or still in progress.

import { fal } from "@fal-ai/client";

const status = await fal.queue.status("minimax/h3-max/multi-angle/image-to-video", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b",
  logs: true,
});

Get the result#

Once the request is completed, you can fetch the result. See the Output Schema for the expected result format.

import { fal } from "@fal-ai/client";

const result = await fal.queue.result("minimax/h3-max/multi-angle/image-to-video", {
  requestId: "764cabcf-b745-4b3e-ae38-1200304cf45b"
});
console.log(result.data);
console.log(result.requestId);

4. Files#

Some attributes in the API accept file URLs as input. Whenever that's the case you can pass your own URL or a Base64 data URI.

Data URI (base64)#

You can pass a Base64 data URI as a file input. The API will handle the file decoding for you. Keep in mind that for large files, this alternative although convenient can impact the request performance.

Hosted files (URL)#

You can also pass your own URLs as long as they are publicly accessible. Be aware that some hosts might block cross-site requests, rate-limit, or consider the request as a bot.

Uploading files#

We provide a convenient file storage that allows you to upload files and use them in your requests. You can upload files using the client API and use the returned URL in your requests.

import { fal } from "@fal-ai/client";

const file = new File(["Hello, World!"], "hello.txt", { type: "text/plain" });
const url = await fal.storage.upload(file);

Auto uploads

The client will auto-upload the file for you if you pass a binary object (e.g. File, Data).

Read more about file handling in our file upload guide.

5. Schema#

Input#

prompt string

Text prompt for video generation. When omitted or blank, defaults to preserving the frozen reference scene while only the camera moves. Default value: "The same elements in the reference are rigid. Preserve every element exactly. The entire scene is frozen. Only the camera moves. no scene motion only camera motion"

duration integer

The duration of the video in seconds. Default value: 5

resolution ResolutionEnum

The native generation resolution, or 1080P latent refinement from a native 768P source. Default value: "480P"

Possible enum values: 480P, 768P, 1080P

seed integer

Random seed. A random seed is selected when omitted.

enable_safety_checker boolean

If set to true, the safety checker will be enabled. Default value: true

sync_mode boolean

Return the generated video as base64 instead of a CDN URL.

prompt_expansion_mode string* required

How much effort to spend rewriting the prompt before generation. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt. Default value: "balanced"

image_url string* required

URL of the image to use as the first frame.

camera_trajectory list<H3MaxCameraKeyframe>

Ordered camera keyframes. The first pose is held before its time and the final pose is held for the remainder of the video. Signed full turns are preserved, with at most 32 turns of total azimuth travel.

{
  "prompt": "Orbit precisely around the subject while preserving its identity and the scene.",
  "duration": 5,
  "resolution": "480P",
  "enable_safety_checker": true,
  "prompt_expansion_mode": "balanced",
  "image_url": "https://storage.googleapis.com/falserverless/example_inputs/hailuo23/pro_i2v_in.jpg",
  "camera_trajectory": [
    {
      "distance": 1,
      "azimuth": 0,
      "time": 0,
      "elevation": 0
    },
    {
      "distance": 0.2,
      "azimuth": 45,
      "time": 0.3,
      "elevation": 15
    },
    {
      "distance": 1,
      "azimuth": 90,
      "time": 0.8,
      "elevation": -90
    }
  ]
}

Output#

video File* required

The generated video

expanded_prompt string

The prompt after expansion, as sent to the model. Null when prompt expansion was disabled, left the prompt unchanged, or was performed internally by MiniMax's hosted API.

timings object

Timing breakdown in seconds. 'inference' is the DiT denoising time on the GPU backend. Null on routes that do not report backend timings.

{
  "video": {
    "url": "",
    "content_type": "image/png",
    "file_name": "z9RV14K95DvU.png",
    "file_size": 4404019
  }
}

Other types#

DirectorInfo#

app string

Default value: "minimax-h3-max-director"

protocol_version integer

Default value: 1

default_chunk_duration integer

Default value: 10

chunk_seconds integer

Default value: 10

min_chunk_duration integer

Default value: 5

max_chunk_duration integer

Default value: 15

continuation_context_frames integer

Default value: 39

continuation_playback_seconds float

Default value: 8.5

fps integer

Default value: 24

audio_sample_rate integer

Default value: 48000

conditioning_audio_sample_rate integer

Default value: 32000

audio_bitrates list<Enum>

default_audio_bitrate Enum

Possible enum values: 96000, 128000, 192000

aspect_ratios list<Enum>

resolutions list<Enum>

max_session_seconds float

session_limit_scope SessionLimitScopeEnum

Default value: "configured"

Possible enum values: configured, effective

prompt_expander string

Default value: "fast"

one_session_per_machine boolean

Default value: true

controller_machine_type string

Default value: "XL"

backend_selection string

Default value: "minimax-h3-turbo-balancer"

prompt_deck_size integer

Default value: 6

audio_conditioning boolean

Default value: true

audio_behaviors list<Enum>

max_audio_source_seconds float

Default value: 600

prompt_context_segments integer

Default value: 12

default_memory integer

Default value: 12

min_memory integer

Default value: 1

max_memory integer

Default value: 50

default_acceleration string

Default value: "regular"

accelerations list<Enum>

client_message_types list<Enum>

server_message_types list<Enum>

StartSessionRequest#

sdp string* required

type string

Default value: "offer"

session_id string

ice_servers list<object>

ice_status string

credential_age_seconds float

H3MaxCameraKeyframe#

time float* required

Normalized video time, from 0 at the start to 1 at the end.

azimuth float* required

Horizontal camera angle around the subject, in degrees.

elevation float* required

Vertical camera angle around the subject, in degrees.

distance float* required

Camera distance from the subject in normalized scene units.

File#

url string* required

The URL where the file can be downloaded from.

content_type string

The mime type of the file.

file_name string

The name of the file. It will be auto-generated if not provided.

file_size integer

The size of the file in bytes.

minimax/h3-max/multi-angle/image-to-video

Table of contents

1. Calling the API

2. Authentication

3. Queue

4. Files

5. Schema

About

1. Calling the API#

Install the client#

Migrate to @fal-ai/client

Setup your API Key#

Submit a request#

2. Authentication#

API Key#

Protect your API Key

3. Queue#

Long-running requests

Submit a request#

Fetch request status#

Get the result#

4. Files#

Data URI (base64)#

Hosted files (URL)#

Uploading files#

Auto uploads

5. Schema#

Input#

Output#

Other types#

DirectorInfo#

StartSessionRequest#

H3MaxCameraKeyframe#

File#

Related Models