FLUX.2 Pro Preview API

blackforestlabs/flux-2-pro-preview
Preview release of the FLUX.
Output
$0.039 / MP (variable)
Released
Jun 12, 2026

How to use FLUX.2 Pro Preview API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to blackforestlabs/flux-2-pro-preview.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/images/generations",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "blackforestlabs/flux-2-pro-preview",
      "prompt": "A cat holding a sign that says hello"
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/images/generations", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "blackforestlabs/flux-2-pro-preview",
    "prompt": "A cat holding a sign that says hello"
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/images/generations \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"blackforestlabs/flux-2-pro-preview","prompt":"A cat holding a sign that says hello"}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

FLUX.2 Pro Preview API Pricing

TypePrice
Output
$0.039 / MP (variable)

FLUX.2 Pro Preview Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Text-to-Image Arena
1185 (Elo)
Human preference Elo from blind pairwise comparisons of generated images, measured independently by Artificial AnalysisSourceJuly 12, 2026

FLUX.2 Pro Preview vs other models

ModelInputOutputContextBest for
$0.039 / MP (variable)
Image generation at scale
$0.325 / 1M tokens
$78 / 1M tokens
128K tokens
Image generation at scale
$6.5 / 1M tokens
$39 / 1M tokens
Image generation at scale
Image generation at scale
$0.0195 / MP (variable)
Image generation at scale

Frequently asked questions

FLUX.2 Pro Preview takes image, text as input and returns image.

FLUX.2 Pro Preview became available on June 12, 2026.

FLUX.2 Pro Preview is priced at $0.039 / MP (variable).

FLUX.2 Pro Preview is billed per generation — a fixed charge per output rather than by prompt length.

Yes, FLUX.2 Pro Preview accepts image input as well as a text prompt.

FLUX.2 Pro Preview was built by Black Forest Labs.

Send a request to https://api.aimlapi.com/v1/images/generations with blackforestlabs/flux-2-pro-preview as the model id.

Yes. FLUX.2 Pro Preview is served through AI/ML API, so the same key and endpoint format used for other models applies.

Start building with FLUX.2 Pro Preview

Get API Key
1000+ models, one API.