FLUX Kontext Pro API Pricing
As of October 10, 2026, FLUX Kontext Pro costs $0.04 per image on Black Forest Labs. It has a 4,096-token context window and returns up to 4,096 tokens per response.
- Per image
- $0.04
- Context window
- 4,096 tokens
- Max output
- 4,096 tokens
- Providers
- 2
- Added to LiteLLM
- December 2025
FLUX Kontext Pro 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 | Input | Output | Context |
|---|---|---|---|---|---|
| Black Forest Labs | black_forest_labs/flux-kontext-pro | $0.04 | – | – | – |
| Fireworks AI | fireworks_ai/accounts/fireworks/models/flux-kontext-pro | – | $0.04 | $0.04 | 4K |
What FLUX Kontext Pro costs in practice
Generating 1,000 images
| Black Forest Labs | $40.00 |
Use FLUX Kontext Pro with LiteLLM
Call FLUX Kontext Pro through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/images/edits. LiteLLM tracks the cost of every request at these prices.
from litellm import image_edit
response = image_edit(
model="black_forest_labs/flux-kontext-pro",
image=open("image.png", "rb"),
prompt="Describe your edit",
)model_list:
- model_name: flux-kontext-pro
litellm_params:
model: black_forest_labs/flux-kontext-pro
# credentials: see the provider's LiteLLM docs pagecurl http://0.0.0.0:4000/v1/images/edits \ -H "Authorization: Bearer sk-1234" \ -F model="flux-kontext-pro" \ -F image=@image.png \ -F prompt="Describe your edit"
FLUX Kontext Pro FAQ
How much does FLUX Kontext Pro cost?
FLUX Kontext Pro costs $0.04 per image on Black Forest Labs.
What is the context window of FLUX Kontext Pro?
FLUX Kontext Pro has a 4,096-token context window and returns up to 4,096 tokens per response.
Which providers offer FLUX Kontext Pro?
FLUX Kontext Pro is available from 2 providers through LiteLLM: Black Forest Labs and Fireworks AI.
How do I call FLUX Kontext Pro with an OpenAI-compatible API?
Use the LiteLLM Python SDK with model="black_forest_labs/flux-kontext-pro", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/images/edits from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.
When did LiteLLM add FLUX Kontext Pro?
FLUX Kontext Pro was added to LiteLLM's model price file in December 2025.
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, Fireworks AI.
Provider pages: Black Forest Labs, Fireworks AI.