Veo Extend

Live

videoedit

Extend an existing Veo video stored at a gs:// GCS URI.

Endpoint

POSThttps://brahmand-api.bulletshorts.co/v1/video/veo-extend

Authenticate with the X-API-Key request header.

Pricing

52 credits / sec1 credit = ₹1. Billed on success: per second of output.

Price varies by resolution — pass resolution in your request. Credit cost per second:

resolution	credits / sec	vs base
480p	37	0.7×
720p	52	1×
1080p	83	1.6×
4k	130	2.5×

List price. Volume / bulk customers get a discounted rate — contact us for account pricing.

Parameters

Name	Type	Required	Description	Default / options
video_gcs_uri	string	required	Source video as a gs:// GCS URI.	—
prompt	string	optional	Optional prompt guiding the extension.	—
aspect_ratio	string	optional	Output aspect ratio.	default: `16:9`
negative_prompt	string	optional	Things to avoid in the output.	—
seed	number	optional	RNG seed (0-4294967295) to bias toward deterministic video.	—
enhance_prompt	boolean	optional	Let Veo LLM-rewrite the prompt.	—
generate_audio	boolean	optional	Generate audio for the video (Veo 3 family only; ignored on veo-2).	—

Request

curl

curl -X POST https://brahmand-api.bulletshorts.co/v1/video/veo-extend \
  -H "X-API-Key: $TRINETRA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"video_gcs_uri":"gs://my-bucket/clips/scene1.mp4","prompt":"continue the camera dolly forward"}'

request body (JSON)

{
  "video_gcs_uri": "gs://my-bucket/clips/scene1.mp4",
  "prompt": "continue the camera dolly forward"
}

Response

Submitting a job returns 202 Accepted with a job id. Poll GET /v1/jobs/{id} until the job reaches a terminal state, or register a webhook to be notified.

202 Accepted

{
  "job_id": "job_veoextend_a1b2c3",
  "status": "queued"
}

GET /v1/jobs/{id} → succeeded

{
  "id": "job_veoextend_a1b2c3",
  "model": "veo-extend",
  "status": "succeeded",
  "output": {
    "outputs": [
      {
        "url": "https://cdn.trinetra.ai/out/veo-extend/a1b2c3.mp4",
        "type": "video"
      }
    ]
  },
  "credits_charged": 10
}

Webhook: set a webhook_url on your API key to receive a POST with the terminal job document instead of polling.