Generates video from references, a source video · 768p to 1080p · 5–30 s · native audio
curl -X POST https://api.open.sume.com/v1/video-router/generate \
-H "Authorization: Bearer $SUME_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"h3-max-recast","video_url":"https://example.com/video.mp4","duration":5,"resolution":"768p","generate_audio":false}'H3 Max Recast has the model id h3-max-recast. Send a JSON body to POST https://api.open.sume.com/v1/video-router/generate.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| model | string | Yes | — | "h3-max-recast" |
| prompt | string | No | — | What happens in the video. |
| reference_image_urls | string[] | No | — | Reference images (HTTPS). |
| video_url | string | Yes | — | Source video (HTTPS). |
| duration | integer | No | 5 | Seconds, 5–30. |
| resolution | string | No | 768p | Output resolution. Options: 768p, 1080p. |
| generate_audio | boolean | No | false | Generate a soundtrack with the video. |
Send your open.sume.com key as a bearer token from server code only. Keys minted on open.sume.com bill this balance in dollars and call the model API only.
Authorization: Bearer $SUME_API_KEY
Dollars per unit at each option: the serving route's cost × 1.25, rounded up to $0.0001. The estimate above is the exact charge.
| Option | Price |
|---|---|
| 768p | $0.3750 / s |
| 1080p | $0.5625 / s |
Price, resolution and duration show each model's full range.
| Model | Type | Price | Resolution | Duration |
|---|---|---|---|---|
| MiniMax H3 | video | $0.0625 – $0.2000 / s | 480p – 4K | 5 – 15 s |
| MiniMax H3 Max | video | $0.0625 – $0.2000 / s | 480p – 1080p | 5 – 15 s |
| MiniMax H3 Max Lip Sync | lipsync | $0.0625 – $0.2000 / s | 480p – 1080p | 5 – 14 s |
A submit answers 202 with the job, its status_url and result_url. Poll the status until it is completed, failed or canceled; failed and canceled jobs are refunded.
GET https://api.open.sume.com/v1/jobs/<job_id>/status GET https://api.open.sume.com/v1/jobs/<job_id>/result POST https://api.open.sume.com/v1/jobs/<job_id>/cancel
The estimate is the charge: the same function prices both.
curl -X POST https://api.open.sume.com/v1/open/estimate \
-H "Content-Type: application/json" \
-d '{"model":"h3-max-recast","input":{"prompt":"…"}}'Full reference: docs.sume.com