API Free WeekHundreds of APIs are free to call this week.Browse free APIs

Flux Vision Upscaler

bfl/flux-vision-upscaler

Flux Vision Upscaler by BFL - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly.

Base price
$0.10USD / run
Execution
async
Model type
image
Input fields
6

Try the model

Playground

Open playground
Input

PNG, JPEG, WebP, or GIF · 20 MiB maximum

The URL of the image to upscale.
14
The upscale factor (1-4x). Range: 1 to 4.
450
Number of inference steps (4-50). Range: 4 to 50.
01
The creativity of the model. The higher the creativity, the more the model will deviate from the original. Refers to the denoise strength of the sampling. Range: 0 to 1.
14
CFG/guidance scale (1-4). Controls how closely the model follows the prompt. Range: 1 to 4.
The seed to use for the upscale. If not provided, a random seed will be used.
OutputReady

Your output will appear here

Complete the inputs, then click Run.

Model card

Specifications

Pricing

Base price
$0.10 / run

Context & modalities

Input
Schema-defined
Output
image

Capabilities

Chat
Not supported
Vision
Not supported
Reasoning
Not supported
Structured output
Not supported
Function calling
Not supported
Audio input
Not supported

Access

Provider
BFL
Model ID
bfl/flux-vision-upscaler
Execution
async
Base URL
https://api.sandbase.ai
API
Unified Run API
Endpoint
/v1/run

API README

Flux Vision Upscaler

Flux Vision Upscaler is a media enhancement workflow in the FLUX family. Flux Vision Upscaler by BFL - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly. It is designed to translate deliberate creative direction and supplied reference material into a coherent production asset, with attention to subject identity, composition, visual detail, and the specific transformation implied by this exact route.

Use this route when the project needs content-aware enlargement and restoration. Describe the intended result, what must remain recognizable, and the required composition, lighting, materials, atmosphere, and finish; keep technical delivery choices in the schema fields below.

Highlights

  • Resolution enhancement. Enlarges source imagery while reconstructing useful visual detail.
  • Texture recovery. Improves fine surfaces, edges, and perceived sharpness in small or soft inputs.
  • Content-aware restoration. Uses scene understanding to rebuild detail that ordinary interpolation cannot recover.
  • Production enlargement. Prepares reference imagery for larger placements while retaining recognizable composition and subject identity.

Pricing

ConfigurationBilling unitPrice
Base generationPer request$0.1

When to Use

✅ Good fit❌ Consider alternatives
The project needs this exact FLUX capabilityThe intended task belongs to a different media workflow
Required source and control media are availableNecessary assets or usage rights are unavailable
Creative direction can state change and preservation goalsOutput must be deterministic at pixel or frame level
Supported dimensions and formats match final deliveryPlacement requires unsupported specifications
An asynchronous generated result fits productionA live frame-synchronous response is mandatory

Prompt Guide

Lead with the main subject and action, then specify composition, context, lighting, materials, style, typography, and atmosphere. For editing, identify each source and clearly separate the requested transformation from the subjects, regions, geometry, or identity that must remain unchanged.

{
  "image": "https://example.com/reference.png",
  "seed": 1,
  "steps": 20,
  "guidance": 1
}

Technical Specs

SpecValue
Model IDbfl/flux-vision-upscaler
Input fieldsseed (integer)<br>image (string)<br>steps (integer; 4–50)<br>guidance (number; 1–4)<br>creativity (number; 0–1)<br>upscale_factor (number; 1–4)
Required inputimage
Output fieldsurl, content_type
ExecutionAsynchronous job

Related Models

  • topaz/upscale/image
  • topaz/upscale/video
  • bfl/flux-video-upscale

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Unified Run API endpoint
https://api.sandbase.ai/v1/run
Model ID
bfl/flux-vision-upscaler
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "bfl/flux-vision-upscaler",
  "image": "https://static.sandbase.ai/examples/bfl/flux-vision-upscaler/input_image_0.jpg",
  "steps": 20,
  "guidance": 1,
  "creativity": 0.3,
  "upscale_factor": 2
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

Choose your model

Compare models

All image & video models
ModelTypeDefault priceReleased
BFLImage$0.10 / runNov 2, 2025
BFLImage$0.05 / runOct 1, 2026
BFLImage$0.05 / runOct 1, 2026
BFLImage$0.02 / runJan 15, 2026
BFLImage$0.02 / runJan 15, 2026
BFLImage$0.01 / runJan 15, 2026

Questions

FAQ

How do I call BFL Flux Vision Upscaler through SandBase?

Create a SandBase API key, then send requests with the model ID "bfl/flux-vision-upscaler" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

Do I need a separate BFL account?

No. One SandBase API key and balance gives you access to BFL Flux Vision Upscaler and the other models in the catalog; you do not need to sign up with BFL separately.