MiniMax H3 Lite

tk-minimax-h3-lite

POST /v1/videos

Lowest cost in the H3 family, for creative exploration and batch generation.

• Resolutions: 480P, 768P
• Duration: 4–15 s
• Reference media: images (≤9), videos (≤3), audio (≤3); first/last frames supported
• Free input images: first 5 per task
• When using reference media, an explicit metadata.ratio is required (adaptive is rejected on this model)

See the family page for the shared request shape, media limits, aspect-ratio rules, and billing rules: MiniMax H3.

Supported parameters

API field	Type	Required	Values / limit
model	string	Yes	tk-minimax-h3-lite
prompt	string	Yes	Nonempty; at most 7,000 characters
seconds	integer	No	4–15; default 5
metadata.resolution	string	Yes	480P, 768P
metadata.ratio	string	See rules	16:9, 4:3, 1:1, 3:4, 9:16, 21:9 (explicit; adaptive only for first/last-frame)
metadata.media	array	No	{type, url} entries

Request example

curl https://api.apimart.cc/v1/videos \
  -H "Authorization: Bearer $HIPIX_API_KEY" \
  -H "Content-Type: application/json" \
  --data-raw '{"model": "tk-minimax-h3-lite", "prompt": "A cat running on the beach, cinematic light", "seconds": 5, "metadata": {"resolution": "480P", "ratio": "16:9"}}'

Billing

• Output video: billed per second at the resolution rate (480P or 768P; see the model square).
• Reference video input: billed by duration at the output resolution rate (same per-second rate as output on this model).
• Input images: first 5 free, then per image.
• Reference audio: free. Failed tasks: not billed.