# Flux 3 video edit

Needs prompt and video url. Served by fal.ai.

Flux 3 FAST Edit Video, served by fal.ai. The OpenAPI schema for the blackforestlabs/flux-3/edit-video queue. Price: Your request will be charged at $0.03 per second of generated video (720p). Actual-cost billing: the initial reservation is an estimate, not a maximum. 5 seconds at $0.03/s (720p); actual output duration affects cost. The unique Billing Events receipt for this exact endpoint and request_id is the final USD charge, including usage above the estimate. Missing receipts retain the reservation for reconciliation; no guessed final fee. Asynchronous: returns a request_id; poll fal/status and fetch fal/result with model "blackforestlabs/flux-3" and that request_id. Billed once, when the result is ready; a generation that fails is refunded.

- Tool ID: `fal/blackforestlabs-flux-3-edit-video`
- Name in the catalog: Flux 3 FAST Edit Video
- Provider: [fal.ai](/providers/fal.md)
- Capability: [AI video generation](/tools/video-generation.md)
- Price: usage based, the maximum is shown before a run
- Authentication: an authorised Agentik workspace is required for execution, including zero-price tools.

## Pricing contract

Billed at the exact provider cost, without a per-call cap. The initial reservation is an estimate; additional usage is debited and unused funds are refunded.


```json
{
  "model": "reported",
  "costPath": "cost_usd",
  "requireCost": true,
  "costMode": "actual",
  "reservationBasis": "5 seconds at $0.03/s (720p); actual output duration affects cost.",
  "maxUsdDefault": 0.15,
  "maxUsdCap": 0.15
}
```

Pricing source: [https://fal.ai/models/blackforestlabs/flux-3/edit-video](https://fal.ai/models/blackforestlabs/flux-3/edit-video). Your request will be charged at $0.03 per second of generated video (720p). Actual-cost billing: the initial reservation is an estimate, not a maximum. 5 seconds at $0.03/s (720p); actual output duration affects cost. The unique Billing Events receipt for this exact endpoint and request_id is the final USD charge, including usage above the estimate. Missing receipts retain the reservation for reconciliation; no guessed final fee..

Price verification date: 2026-10-07.

## Complete input schema


```json
{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "title": "Prompt",
      "description": "The text prompt describing how to change the input video. The clip is re-rendered preserving motion, timing, and framing.",
      "maxLength": 4096
    },
    "safety_tolerance": {
      "type": "integer",
      "title": "Safety Tolerance",
      "description": "The safety tolerance level for the generated video. 0 is the strictest and 4 is the most permissive.",
      "maximum": 4,
      "default": 2,
      "minimum": 0
    },
    "video_url": {
      "type": "string",
      "description": "URL of the input video. MP4, under 50 MB and under 15 seconds.",
      "title": "Video URL"
    }
  },
  "required": [
    "prompt",
    "video_url"
  ],
  "additionalProperties": false
}
```

## Published example

This is the provider tool’s published example. Replace example values with the user’s requested inputs, respecting the schema; do not execute an example merely to test a connection.


```json
{
  "tool_id": "fal/blackforestlabs-flux-3-edit-video",
  "input": {
    "prompt": "Make it snow heavily; give the scene a cold winter palette.",
    "video_url": "https://storage.googleapis.com/falserverless/example_inputs/flux-3-red-panda.mp4"
  }
}
```

## Execute and retrieve

Inspect again before execution, explain the price and obtain the required authority. Use MCP run_tool or POST /v1/run with this tool ID, valid input and an idempotency key. Save the returned run ID and follow the actual state. If Agentik answers that the tool is temporarily unavailable, do not retry it blindly; use discovery to propose an alternative.

This tool uses deferred settlement. Follow its returned task/run instructions; preserve the existing reservation until the result is reconciled.

A partial or uncertain result can still have consumed provider resources. Consult [billing](/docs/billing.md), [idempotency](/docs/idempotency.md) and [asynchronous results](/docs/async.md).

[Provider documentation](https://fal.ai/models/blackforestlabs/flux-3/edit-video)

[REST inspection](https://api.agentik.cc/v1/tools/fal/blackforestlabs-flux-3-edit-video) · [OpenAPI](/openapi.json) · [Connection guide](/connect.md)

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[HTML page](/providers/fal/blackforestlabs-flux-3-edit-video) · [Agent index](/llms.txt)