How much does Flux 3 Image cost on varg?

Flux 3 Image costs from $0.02 per run on varg ($0.048/MP on the cheapest route). varg charges the provider's price with no markup, from one credit balance. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.

How do I call the Flux 3 Image API?

Send POST https://api.varg.ai/v2/tools/image/call with the header "Authorization: Bearer $VARG_API_KEY" and a JSON body that includes "model": "flux_3_image". The call answers 202 with a job right away. Poll GET https://api.varg.ai/v2/jobs/{id} until "status" is "completed", then read output.outputs[0].url, or pass options.webhook_url to be called back.

Can I use Flux 3 Image from Claude, ChatGPT or Cursor?

Yes. Add the varg MCP server (https://mcp.varg.ai/mcp) to Claude, ChatGPT, Cursor or any other MCP client and sign in with varg, with no API key to paste. The agent runs Flux 3 Image with call_tool, passing tool "image" and "model": "flux_3_image".

How long does a Flux 3 Image request take?

Typically about 30 s on the fastest route, by the catalog's estimate. The API answers at once with a job id, so nothing waits on an open connection while it runs.

Images · Text to image · Image to image

Flux 3 Image API

Black Forest Labs FLUX 3 Image. Newest image model — native 2K/4K, precise layout control, improved text rendering. Edits with up to 10 references.

Price: From $0.02 per run $0.048/MP
Typical time: ~30 s
Model id: flux_3_image

Flux 3 Image runs on one varg API key and one credit balance, the same as every other model here. You pay the provider's price, with no markup.

POST /v2/tools/image/call

curl -X POST https://api.varg.ai/v2/tools/image/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux_3_image",
  "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph."
}'

Try it in the Playground Get an API key

Flux 3 Image pricing

From $0.02 per run. Prices are in US dollars and are the provider's own, with no markup. Flux 3 Image has 2 routes: "model": "flux_3_image" picks one automatically, or pass a route key as "model" to pin it. For the exact price of a request, send the same body to POST https://api.varg.ai/v2/estimate.

fal $0.048/MP
fal:blackforestlabs/flux-3/text-to-image
Text to image FLUX 3 Image text-to-image (via fal) — Black Forest Labs newest image model. Native 2K/4K, precise layout control, improved text rendering.
Per megapixel
$0.048
Minimum charge
$0.02
Most one request can cost
$0.85
Typical time
~30 s
fal $0.048/MP
fal:blackforestlabs/flux-3/edit-image
Image to image FLUX 3 Image edit (via fal) — precise local edits without changing the rest of the image; combines up to 10 references into one balanced, well-composed result.
Per megapixel
$0.048
Minimum charge
$0.02
Most one request can cost
$0.85
Typical time
~30 s

Flux 3 Image inputs

The JSON body of the request. Media inputs are URLs: upload a local file with POST /v2/files and pass the URL it returns. Full JSON Schema, no key needed: api.varg.ai/v2/tools/image?model=flux_3_image

Flux 3 Image request fields
Field	What it does
`model` string required	`flux_3_image` picks a route automatically. To pin one, pass a route key from Pricing above.
`prompt` string	—
`files` array of { url }	—
`aspect_ratio` string	Allowed e.g. 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 \| 21:9 \| auto

Provider options

Optional, under provider_options.<provider>. Only the options of the provider that runs the job apply; pin a route to choose it.

`provider_options.fal`

Flux 3 Image options for fal
Field	What it does
`prompt` string	The prompt to generate an image from.
`image_urls` array of URL strings	—
`version` string	The model version.
`sync_mode` boolean	Return the image as a data URI instead of storing it in request history.
`resolution` string	Allowed 512sq \| 768sq \| 1k \| 2k \| 4k
`aspect_ratio` string	Allowed auto \| 21:9 \| 2:1 \| 16:9 \| 3:2 \| 7:5 \| 4:3 \| 5:4 \| 1:1 \| 4:5 \| 3:4 \| 5:7 \| 2:3 \| 9:16 \| 1:2
`output_format` string	Allowed jpeg \| png
`safety_tolerance` integer	Safety tolerance, from 0 (strictest) to 4. Allowed 0–4
`enable_prompt_expansion` boolean	Expand the prompt while preserving its intent and reference roles.

Call the Flux 3 Image API

POST https://api.varg.ai/v2/tools/image/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away.

1. Send the request

cURL

curl -X POST https://api.varg.ai/v2/tools/image/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux_3_image",
  "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph."
}'

JavaScript

const headers = {
  Authorization: `Bearer ${process.env.VARG_API_KEY}`,
  'Content-Type': 'application/json',
}

const res = await fetch('https://api.varg.ai/v2/tools/image/call', {
  method: 'POST',
  headers,
  body: JSON.stringify({
    "model": "flux_3_image",
    "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph."
  }),
})
const job = await res.json() // { id: "job_…", status: "queued" }

Python

import os
import requests

headers = {"Authorization": f"Bearer {os.environ['VARG_API_KEY']}"}

job = requests.post(
    "https://api.varg.ai/v2/tools/image/call",
    headers=headers,
    json={
      "model": "flux_3_image",
      "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph."
    },
).json()  # {"id": "job_…", "status": "queued"}

2. Get the result

Poll the job until its status is completed, failed or cancelled; Flux 3 Image typically takes about 30 s. The result is at output.outputs[0].url.

GET /v2/jobs/{id}

curl https://api.varg.ai/v2/jobs/$JOB_ID \
  -H "Authorization: Bearer $VARG_API_KEY"

# Poll until "status" is completed, failed or cancelled.
# The result is in output.outputs[0].url

JavaScript

let current = job
while (!['completed', 'failed', 'cancelled'].includes(current.status)) {
  await new Promise((resolve) => setTimeout(resolve, 3000))
  current = await (await fetch(`https://api.varg.ai/v2/jobs/${current.id}`, { headers })).json()
}
console.log(current.output?.outputs?.[0]?.url)

Python

import time

while job["status"] not in ("completed", "failed", "cancelled"):
    time.sleep(3)
    job = requests.get(f"https://api.varg.ai/v2/jobs/{job['id']}", headers=headers).json()

print(job["output"]["outputs"][0]["url"])

Or take a webhook instead of polling

Add options.webhook_url and varg POSTs the finished job to it.

request body

{
  "model": "flux_3_image",
  "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph.",
  "options": {
    "webhook_url": "https://your-app.com/varg-webhook"
  }
}

From Claude, ChatGPT or Cursor (MCP)

The varg MCP server, https://mcp.varg.ai/mcp, runs Flux 3 Image with call_tool. Sign in with varg, no API key to paste. How to connect it

call_tool

{
  "tool": "image",
  "input": {
    "model": "flux_3_image",
    "prompt": "A red fox leaping over a stream in a pine forest, low-angle wildlife photograph."
  },
  "wait": true
}

Flux 3 Image API: questions

How much does Flux 3 Image cost on varg?: Flux 3 Image costs from $0.02 per run on varg ($0.048/MP on the cheapest route). varg charges the provider's price with no markup, from one credit balance. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.
How do I call the Flux 3 Image API?: Send POST https://api.varg.ai/v2/tools/image/call with the header "Authorization: Bearer $VARG_API_KEY" and a JSON body that includes "model": "flux_3_image". The call answers 202 with a job right away. Poll GET https://api.varg.ai/v2/jobs/{id} until "status" is "completed", then read output.outputs[0].url, or pass options.webhook_url to be called back.
Can I use Flux 3 Image from Claude, ChatGPT or Cursor?: Yes. Add the varg MCP server (https://mcp.varg.ai/mcp) to Claude, ChatGPT, Cursor or any other MCP client and sign in with varg, with no API key to paste. The agent runs Flux 3 Image with call_tool, passing tool "image" and "model": "flux_3_image".
How long does a Flux 3 Image request take?: Typically about 30 s on the fastest route, by the catalog's estimate. The API answers at once with a job id, so nothing waits on an open connection while it runs.

For AI agents: this page as Markdown is varg.ai/models/flux_3_image.md, and every model is listed in varg.ai/models/llms.txt.