FLUX 3 Video To Video
FLUX 3 video-to-video: continue an existing clip with new content, 5-20s with native audio, billed per second of generated video at 720p or 1080p. Draft mode is a cheaper 720p-only preview that can be re-rendered at full quality.
Capabilities
Best for
- •Cinematic text-to-video shots
- •Short social and ad clips
- •Consistent multi-shot sequences
- •Look-dev and style exploration
Not for
- •Frame-exact rotoscoping
- •Feature-length renders
- •Pixel-perfect compositing
- •Precise on-screen text
Authentication
api key header
The Pika API uses API keys to authenticate requests. Send your key in the X-API-Key header. Your API key is a secret. Don't expose it in browsers or other client-side code. Instead, call the API from your server. The signed-in playground uses a portal session and never sends your API key.
X-API-Key: YOUR_API_KEY
Endpoint
asynchronous · poll for the result
Reference Uploads
media inputs
Media inputs accept any public URL. To use a local file, POST its content_type and size_bytes to /v1/media/uploads, PUT the file to the returned upload_url, then pass the url.
# 1. Request a presigned upload URL. Send the file's content# type and its exact size in bytes.curl -X POST https://api.dev.pika.art/v1/media/uploads \-H "X-API-Key: YOUR_API_KEY" \-H "Content-Type: application/json" \-d '{"content_type": "image/png", "size_bytes": 12345}'# The response returns two URLs:# upload_url: a temporary URL to upload the file to. Expires in 5 minutes.# url: the permanent Pika URL. Pass it to the model as the input.# {# "upload_url": "https://upload.r2.pika.art/...?X-Amz-Signature=...",# "url": "https://cdn.pika.art/v2/media/uploads/org_abc/9f8e7d.png"# }# 2. Upload the file to upload_url, then pass url to the model.curl -X PUT "<upload_url>" \-H "Content-Type: image/png" \--data-binary @input.png
Generate
POST /v1/media/black-forest-labs/flux-3-video/video-to-video
Request
curl -X POST https://api.dev.pika.art/v1/media/black-forest-labs/flux-3-video/video-to-video \-H "X-API-Key: YOUR_API_KEY" \-H "Content-Type: application/json" \-d '{"prompt": "the forest opens into a sunlit clearing with a waterfall, camera rises over the treetops into golden light","resolution": "720p","duration": 6,"aspect_ratio": "auto","draft": false,"generate_audio": true,"start_video_url": "https://cdn.pika.art/v2/files/agent/34f0ba0a-deea-4629-b73c-10042bbf274f/9dead3d9e987656217ef849b0a8187ccb639b60383117f745648cd50d44b0be5"}'
Response
{"id": "media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status": "queued"}
Request body
Accepted values
- resolution
- aspect_ratio
Input modes
Use a public URL directly, or POST { content_type, size_bytes } to /v1/media/uploads, PUT the video to the returned upload_url with the returned headers, then pass the url.
Returns
Returns a job object with status , not the final output. Store the id from the response and poll the job until it completes.
Poll status
GET /v1/media/jobs/{request_id}
Request
curl https://api.dev.pika.art/v1/media/jobs/{request_id} \-H "X-API-Key: YOUR_API_KEY"
Response
{"id": "media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status": "running"}
Poll the job by id until it reaches a terminal state: completed or failed.
The job object
Get result
GET /v1/media/jobs/{request_id}/content
Request
curl https://api.dev.pika.art/v1/media/jobs/{request_id}/content \-H "X-API-Key: YOUR_API_KEY"
Response
{"url": "https://api.dev.pika.art/v1/files/video_8f3a2c91.mp4"}
Once the job completes, fetch a download URL for the generated media.
Returns
Errors
shared across calls
Errors use conventional HTTP status codes with a JSON body of the shape {"message": "..."}. Validation failures return 422 with a message naming the offending field. Submit rejections after the job row exists (balance, rate limit) return the failed job envelope — branch on error.code.
| Status | When | Body |
|---|---|---|
| 401 Unauthorized | The API key is missing or invalid. | {"message":"Invalid API key"} |
| 403 Forbidden | An inactive key is rejected with a `{"message"}` body. A submit that the org balance or postpaid cycle limit cannot cover is rejected after the job row exists and returns the failed job envelope. | {"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"insufficient_balance","message":"Insufficient org balance"}} |
| 404 Not Found | No job with that id exists in your org, or the media path names an unknown vendor/model/function. | {"message":"media job not found"} |
| 409 Conflict | The result was requested before the job completed, or an Idempotency-Key header was reused with a different body. | {"message":"media job is not ready"} |
| 422 Unprocessable Entity | The request body failed validation: an invalid enum value, a missing required field, a wrong type, or malformed JSON. The JSON message names the offending field. A schema-valid parameter combination that cannot be priced instead fails after job creation and returns the failed job envelope with error code `invalid_input`. | {"message":"duration: Input should be less than or equal to 15"} |
| 429 Too Many Requests | Org limit reached: requests per minute or day, or concurrent jobs. Returned as the failed job envelope; check the Retry-After header and retry with a fresh Idempotency-Key. | {"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"rate_limited","message":"rate limit exceeded: rpm"}} |
| 503 Service Unavailable | The model rail or a backend dependency is temporarily unavailable. Returned as the failed job envelope; retry with backoff and a fresh Idempotency-Key. | {"id":"media_8f3a2c91-5b7d-4e0a-9c26-31d4f2a8e6b0","status":"failed","error":{"code":"provider_unavailable","message":"media dispatch unavailable"}} |
Pricing
only successful runs are charged
| Tier | Price |
|---|---|
| 720p · draft | $0.11 / second |
| 720p · standard | $0.37 / second |
| 1080p · standard | $0.48 / second |
Per-model pricing
Transparent, usage-based rates for every Black Forest Labs model.
FLUX 3 Image To Video
Video
Image to Video
Text to Video
Video to VideoCurrent