# Flux video upscale

Needs video url. Served by fal.ai.

Flux Video Upscale, served by fal.ai. The OpenAPI schema for the blackforestlabs/flux-video-upscale queue. Price: Billing is calculated per second of output video, by resolution and mode. In precise mode, 1080p costs $0.14 per second, 2K costs $0.25 per second, and 4K costs $0.55 per second. Creative mode costs more at each tier: $0.20, $0.35, and $0.79 per second respectively. A 10-second 1080p clip runs $1.40 in precise mode or $2.00 in creative mode. You are charged for the delivered output only. Actual-cost billing: the initial reservation is an estimate, not a maximum. 5 output seconds at precise 1080p ($0.14/s); output resolution and creative mode affect 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-video-upscale" and that request_id. Billed once, when the result is ready; a generation that fails is refunded.

- Tool ID: `fal/blackforestlabs-flux-video-upscale`
- Name in the catalog: Flux Video Upscale
- Provider: [fal.ai](/providers/fal.md)
- Capability: [Image upscaling](/tools/image-generation/upscale.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 output seconds at precise 1080p ($0.14/s); output resolution and creative mode affect cost.",
  "maxUsdDefault": 0.7,
  "maxUsdCap": 0.7
}
```

Pricing source: [https://fal.ai/models/blackforestlabs/flux-video-upscale](https://fal.ai/models/blackforestlabs/flux-video-upscale). Billing is calculated per second of output video, by resolution and mode. In precise mode, 1080p costs $0.14 per second, 2K costs $0.25 per second, and 4K costs $0.55 per second. Creative mode costs more at each tier: $0.20, $0.35, and $0.79 per second respectively. A 10-second 1080p clip runs $1.40 in precise mode or $2.00 in creative mode. You are charged for the delivered output only. Actual-cost billing: the initial reservation is an estimate, not a maximum. 5 output seconds at precise 1080p ($0.14/s); output resolution and creative mode affect 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": {
    "safety_tolerance": {
      "minimum": 0,
      "title": "Safety Tolerance",
      "description": "Moderation strictness. Lower values are stricter.",
      "maximum": 4,
      "default": 2,
      "type": "integer"
    },
    "video_url": {
      "description": "URL of the MP4 video to upscale. The video must be at most 20 seconds and 50 MB.",
      "title": "Video Url",
      "type": "string"
    },
    "upscale_factor": {
      "minimum": 1.5,
      "title": "Upscale Factor",
      "description": "Output scaling factor. The source aspect ratio is preserved.",
      "maximum": 3,
      "default": 2,
      "type": "number"
    },
    "prompt": {
      "description": "Optional description used to guide creative detail enhancement.",
      "title": "Prompt",
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "creativity": {
      "enum": [
        0,
        1
      ],
      "description": "Use 0 for a source-faithful upscale or 1 for creative detail enhancement.",
      "title": "Creativity",
      "default": 1,
      "type": "integer"
    }
  },
  "required": [
    "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-video-upscale",
  "input": {
    "video_url": "https://v3b.fal.media/files/b/0a93a27d/-iFpecUCsSdwXVMevsZa3_output_5s_448x256.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-video-upscale)

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

---

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