FLUX.3 Max
FLUX.3 Max is the post-trained video model from Black Forest Labs, built for cinematic motion with native synchronized audio. It supports text-to-video and image-to-video, optional first and last frame control, 720p output at 24 FPS, and durations from 5 to 20 seconds across 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16, including Auto aspect ratio. Built for game studios and creative teams that need high-fidelity clips with speech, effects, and ambience in a single pass.
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FLUX.3 Max is the post-trained video model from Black Forest Labs, built for cinematic motion with native synchronized audio. It supports text-to-video and image-to-video, optional first and last frame control, 720p output at 24 FPS, and durations from 5 to 20 seconds across 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16, including Auto aspect ratio. Built for game studios and creative teams that need high-fidelity clips with speech, effects, and ambience in a single pass.
Connect Claude, Cursor, VS Code, or Codex to Layer’s MCP server and FLUX.3 Max becomes a tool your agent can reach for — it picks the parameters, runs the generation, and shows you the result in the conversation.
https://mcp.app.layer.ai/mcpAsk your agent
“Use FLUX.3 Max to animate a torch-lit dungeon corridor with a slow dolly forward.”
execute_forge({
"base_model_id": "flux-3-max",
"prompt": "A torch-lit dungeon corridor, slow dolly forward",
"batch_size": 1,
"duration_seconds": 5
})Authenticate with a personal access token, post the model’s own form, and poll the inference until it completes. Every field below is accepted by this endpoint.
# Start the generation — returns an inference id straight away.
curl -X POST https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/base-models/bfl-flux-3-max/inferences \
-H "Authorization: Bearer $LAYER_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"prompt": "A torch-lit dungeon corridor, slow dolly forward"
}'
# Poll until status is "complete" — the response then carries the asset URLs.
curl https://api.app.layer.ai/api/v2/workspaces/$WORKSPACE_ID/inferences/$INFERENCE_ID \
-H "Authorization: Bearer $LAYER_TOKEN"- prompt stringrequired
- Describe what to generate, or the change to make.
- aspect_ratio enumdefault LANDSCAPE_16_9_720p8 options
- The shape and size of the output. Auto follows the shape of the input.
- seed integer
- The starting point for the model's randomness. The same seed and settings give the same result.
- duration_seconds integerdefault 5
- Length of the generated clip, in seconds.
- fps stringdefault 24
- Frames per second of the output video.
- generate_audio booleandefault true
- Add sound, generated with the video in the same pass.
- guidance_file_first_frame file[]
- The frame the video starts on
- guidance_file_last_frame file[]
- The frame the video ends on
- prompt_language string
- The language the prompt is written in, so it reaches the model as you meant it.
Why use FLUX.3 Max for video?
Cinematic video generation
FLUX.3 Max creates high-fidelity video content suitable for trailers, gameplay previews, and marketing materials with temporal consistency.
Flexible input modes
Generate from text prompts, reference images, or existing video. Supports various aspect ratios and durations for different content needs.
Production-ready output
Clean motion, stable framing, and coherent transitions make outputs ready for direct use in UA campaigns and social content.
Game trailers and cinematic previews
Create attention-grabbing trailers and gameplay previews that showcase your game at its best. High temporal consistency ensures smooth, professional results.
UA video creative at scale
Generate dozens of video ad variants for A/B testing across platforms. Rapid iteration lets performance teams optimize creative angles quickly.
Character animations and in-game cinematics
Bring characters to life with animated sequences for cutscenes, promotional materials, and social content.
FAQ
How much does FLUX.3 Max cost? Is it free?+
How does Layer's pricing work?+
There are no seat fees, feature gates, or plans on Layer. Instead, our platform uses a consumption based system with Creative Units (CUs) with a flexible monthly subscription. Every generation on Layer (image, video, 3D, or audio) consumes a Creative Unit, and you only pay for what you create.
Other video models on Layer
FLUX.3 Edit
Black Forest Labs
Edit an existing video with FLUX.3 from a text instruction, preserving motion, timing, and framing.
FLUX.3 Extend
Black Forest Labs
Extend an existing video clip with FLUX.3, continuing motion and native audio from the source ending.
FLUX.3
Black Forest Labs
Frontier video model from Black Forest Labs with native audio, lipsync, and first/last frame control.
OmniHuman v2
ByteDance
ByteDance OmniHuman v2 animates a still photo from audio, with optional prompt control of motion and camera.
FLUX.3 Max Keyframes
Black Forest Labs
Guide FLUX 3 Max video with up to 10 keyframe images spaced across a 720p clip.
Mirelo SFX 2.0 Video to Video
Mirelo
Adds synchronized sound effects and returns the video with its new soundtrack.