's H3 Max is a post-trained variant of H3, tuned for stronger prompt adherence and better aesthetics while co-optimized with our custom inference stack for higher throughput with no compromises on output quality
Every plan, free included. Runs spend your account’s credits.
The smallest request that works: the required fields only.
curl https://api.percify.io/v3/playground/v1/run \
-H "Authorization: Bearer $PERCIFY_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"modelId": "minimax-h3-max-t2v",
"input": {
"prompt": "A red fox running through fresh snow at sunrise",
"prompt_expansion_mode": "balanced"
}
}'7 fields in input, required first.
promptRequiredText prompt for video generation
prompt_expansion_modeRequiredHow much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt.
seedOptionalRandom seed. A random seed is selected when omitted.
durationOptionalVideo length in seconds. The output can run up to about 0.7 s longer than requested. Use at least 2 s with target_audio_url.
resolutionOptional
$0.82/sFLUX 3 Video Extend continues input videos into new 5-20 second clips, using prompt guidance to control the next action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Start-End-to-Video generates 5-20 second transition videos between required start and end images, using prompt guidance to control action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Text-to-Video generates cinematic 5-20 second videos from text prompts, with coherent motion, cinematic composition, optional synchronized audio, and 720P / 1080P output for creative videos, social content, ads, and production workflows.
$0.06/sGemini Omni 1.1 Flash Text-to-Video creates short AI videos with synchronized audio from text prompts, supporting resolutions from 360P to 4K for social content, creative storytelling, marketing videos, and production workflows.

Pick a use case, run it in the playground, copy the call.
Every plan, free included. Runs spend your account’s credits.
The native generation resolution, or 1080P latent refinement from a native 768P source.
aspect_ratioOptionalThe aspect ratio of the generated video.
target_audio_urlOptionalOptional URL of an audio clip at least 2 seconds long (maximum 15 MB) to pin to the generated soundtrack. Longer clips are trimmed to the generated video's length, keeping the beginning. The original audio replaces the output soundtrack, padded with silence if shorter than the video, without changing playback speed. Exceptionally high sample rates may be resampled to 96 kHz. Accepts an HTTP(S) URL or a base64 data URI.