PixVerse V5.6

AI Video Generation Model

Video $$$ · 7¢

PixVerse's latest video generation model with astonishing physics, audio-visual synchronization, multi-shot camera control, and end-frame support

pixverse-5.6 API Async video generation

Base URL
https://api.lumenfall.ai/v1
Model
pixverse-v5.6

Code Examples

Text to Video

/v1/videos/generations
# Step 1: Submit video generation request
VIDEO_ID=$(curl -s -X POST \
  https://api.lumenfall.ai/v1/videos \
  -H "Authorization: Bearer $LUMENFALL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "pixverse-v5.6",
    "prompt": "",
    "size": "1024x1024"
  }' | jq -r '.id')
echo "Video ID: $VIDEO_ID"
# Step 2: Poll for completion
while true; do
  RESULT=$(curl -s \
    https://api.lumenfall.ai/v1/videos/$VIDEO_ID \
    -H "Authorization: Bearer $LUMENFALL_API_KEY")
  STATUS=$(echo $RESULT | jq -r '.status')
  echo "Status: $STATUS"
  if [ "$STATUS" = "completed" ]; then
    echo $RESULT | jq -r '.output.url'
    break
  elif [ "$STATUS" = "failed" ]; then
    echo $RESULT | jq -r '.error.message'
    break
  fi
  sleep 5
done

Image to Video

/v1/videos/generations

Parameter Reference

Required Supported Not available

Core Parameters

Parameter Type Description Modes
prompt string Required. Text prompt for video generation
T2V I2V
negative_prompt string Negative prompt to guide generation away from undesired content
T2V I2V
seed integer Random seed for reproducibility
T2V I2V
style fal string The style of the generated video
3d_animation anime clay comic cyberpunk
T2V I2V
quality replicate string Resolution of the video. Higher resolutions cost more. See pricing for details.
1080p 360p 540p 720p
Default: "540p"
T2V I2V
duration number Video duration in seconds
10 5 8
T2V I2V

Size & Layout

Parameter Type Description Modes
size string Video dimensions as WxH pixels (e.g. "1920x1080") or aspect ratio (e.g. "16:9")
1365x768 768x1365 887x1182 1024x1024 1183x887
WxH determines both shape and scale (aspect_ratio and resolution are ignored when size is provided). W:H format is equivalent to aspect_ratio.
T2V I2V
aspect_ratio string Aspect ratio of the output video (e.g. "16:9", "1:1")
9:16 3:4 1:1 4:3 16:9
Controls shape independently of scale. Use with resolution to control both. If size is also provided, size takes precedence. Any ratio is accepted and mapped to the nearest supported value.
T2V I2V
resolution string Output resolution tier (e.g. "1K", "4K")
1K
Controls scale independently of shape. Higher tiers produce larger videos and cost more. If size is also provided, size takes precedence for scale. Any tier is accepted and mapped to the nearest supported value.
T2V I2V
1K 5 sizes
Output size aspect_ratio + resolution
1183 × 887 "1183x887" or "4:3" + "1K"
1024 × 1024 "1024x1024" or "1:1" + "1K"
887 × 1182 "887x1182" or "3:4" + "1K"
768 × 1365 "768x1365" or "9:16" + "1K"
1365 × 768 "1365x768" or "16:9" + "1K"

How these parameters work

size

Exact pixel dimensions

"1920x1080"
aspect_ratio

Shape only, default scale

"16:9"
resolution

Scale tier, preserves shape

"1K"

Priority when combined

size aspect_ratio + resolution aspect_ratio resolution

size is most specific and always wins. aspect_ratio and resolution control shape and scale independently.

How matching works

Shape matching – we pick the closest supported ratio. Ask for 7:1 on a model with 4:1 and 8:1, you get 8:1.
Scale matching – providers use different tier formats: K tiers (0.5K 1K 2K 4K) or megapixel tiers (0.25 1). If the exact tier isn't available, you get the nearest one.
Dimension clamping – if a model has pixel limits, we clamp dimensions to fit and keep the aspect ratio intact.

Media Inputs

Parameter Type Description Modes
input_reference array Required. Input image(s) to animate into video
T2V I2V

Output & Format

Parameter Type Description Modes
n integer Number of videos to generate
Default: 1
Gateway generates multiple videos in parallel even if provider only supports 1.
T2V I2V

Additional Parameters

Provider-specific passthrough fields, available only when the request is routed to the listed provider.

Parameter Type Description Modes
Universal
generate_audio_switch boolean Enable AI-generated audio including BGM, SFX, and character dialogues
T2V I2V
thinking_type string Prompt reasoning enhancement. Controls whether the system enhances your prompt with internal reasoning and optimization.
disabled enabled
T2V I2V
replicate
last_frame_image string Use to generate a video that transitions from the first image to the last image. Must be used with image.
T2V I2V

Parameter Normalization

How we handle parameters across different providers

Not every provider speaks the same language. When you send a parameter, we handle it in one of four ways depending on what the model supports:

Behavior What happens Example
passthrough Sent as-is to the provider style, quality
renamed Same value, mapped to the field name the provider expects prompt
converted Transformed to the provider's native format size
emulated Works even if the provider has no concept of it n, response_format

Parameters we don't recognize pass straight through to the upstream API, so provider-specific options still work.