FLUX Dev API Pricing

As of October 10, 2026, FLUX Dev costs $0.025 per image on Black Forest Labs.

By Black Forest LabsModel ID black_forest_labs/flux-devPrices updated October 10, 2026Checked October 10, 2026

Per image: $0.025
Providers: 2
Added to LiteLLM: March 2026

FLUX Dev pricing by provider

2 listings across 2 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

Provider	Model name in LiteLLM	Per image	Context
Black Forest Labs	`black_forest_labs/flux-dev`	$0.025	–
fal	`fal_ai/fal-ai/flux/dev`	$0.025	–

What FLUX Dev costs in practice

Generating 1,000 images

Black Forest Labs	$25.00
fal	$25.00

Use FLUX Dev with LiteLLM

Call FLUX Dev through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/images/generations. LiteLLM tracks the cost of every request at these prices.

Python SDK

from litellm import image_generation

response = image_generation(
    model="black_forest_labs/flux-dev",
    prompt="A cute baby sea otter",
)

Proxy config.yaml

model_list:
  - model_name: flux-dev
    litellm_params:
      model: black_forest_labs/flux-dev
      # credentials: see the provider's LiteLLM docs page

Call the proxy

curl http://0.0.0.0:4000/v1/images/generations \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "flux-dev",
    "prompt": "A cute baby sea otter",
    "n": 1,
    "size": "1024x1024"
  }'

FLUX Dev FAQ

How much does FLUX Dev cost?

FLUX Dev costs $0.025 per image on Black Forest Labs.

Which providers offer FLUX Dev?

FLUX Dev is available from 2 providers through LiteLLM: Black Forest Labs and fal.

How do I call FLUX Dev with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="black_forest_labs/flux-dev", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/images/generations from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

When did LiteLLM add FLUX Dev?

FLUX Dev was added to LiteLLM's model price file in March 2026.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: Black Forest Labs, fal.

Provider pages: Black Forest Labs, fal.