Full Model Access
Browse every model currently listed for this provider in the RunAPI catalog.
Black Forest Labs
Flux Kontext and Flux 2 — open-weight image generation and editing with strong prompt adherence.
3
MODELS
Image
MODALITIES
What you get through RunAPI
Transparent Pricing
Review each model's published RunAPI price before sending a request.
No Account Required
Use your RunAPI key without creating a separate provider account.
Unified Billing
Keep this provider and other supported models on one RunAPI balance.
HOW IT WORKS
Call Black Forest Labs models in 3 steps
-
Get Your Key
Sign up for free and create a RunAPI key — no Black Forest Labs account needed.
-
Send a Request
POST to /v1/chat/completions with any Black Forest Labs model slug.
-
Get Results
Stream the response or receive a webhook when the task completes.
MODELS
Black Forest Labs Models on RunAPI
Image
Flux
Flux image generation with Dev, Pro, and 2 Klein, plus single-image editing with Dev and Pro.
$0.03 / call
View →
Image
Flux 2
Flux 2 API access for text-to-image and remix-image with strong prompt adherence from Black Forest Labs.
$0.07 / call
View →
Image
Flux Kontext
Flux Kontext API access for in-context image editing, local edits, style transfer, and character consistency.
$0.11 / call
View →
Why use Black Forest Labs via RunAPI
Lower Cost
Compare Black Forest Labs variants and start with transparent per-call pricing for the model you need.
No Account Needed
Use your RunAPI API key for managed Black Forest Labs access without a separate provider account or credential.
Unified Billing
Keep Black Forest Labs and every other supported model on one RunAPI balance and monthly USD invoice.
RunAPI vs Direct Black Forest Labs
| Feature | Direct Black Forest Labs | Via RunAPI |
|---|---|---|
| Account Required | Black Forest Labs account + billing | RunAPI account only |
| API Format | Black Forest Labs SDK | Same Black Forest Labs SDK (compatible) |
| Pricing | Provider-published rates | Published per-model RunAPI pricing |
| Other Models | Black Forest Labs only | 249+ models, all providers |
| Billing | Per-provider invoices | One unified credit balance |
| Support | Provider-specific support | RunAPI support |
Playground
Try Black Forest Labs Models
Response will appear here
QUICKSTART
Call Black Forest Labs Models via RunAPI
Python
import os
import requests
response = requests.post(
"https://runapi.ai/api/v1/flux/text_to_image",
headers={"Authorization": f"Bearer {os.environ['RUNAPI_API_KEY']}"},
json={
"model": "flux-2-klein",
"prompt": "Generate a 4K product hero image of a matte-black water bottle on a beige stone surface, soft side light."
}
)
What teams build with Black Forest Labs models
Conversational AI
Build chatbots and assistants with Black Forest Labs models.
Content Generation
Generate marketing copy, code, and creative writing at scale.
Image Creation
Create product shots, illustrations, and design assets with Black Forest Labs models.
Data Analysis
Extract insights from documents, spreadsheets, and structured data.
Explore
More Providers on RunAPI
Provider questions
Do I need a Black Forest Labs account?
No. Your RunAPI API key is enough to access the Black Forest Labs models listed in the catalog.
Which Black Forest Labs models are available?
The model cards above reflect the Black Forest Labs models currently available through RunAPI.
How does billing work?
Usage is charged to your RunAPI balance using the price shown for the selected model.
Can I switch to another model?
Yes. Choose another supported model and use its model ID in the same RunAPI workflow.
Where can I find request details?
Open a model page to review its current endpoints, parameters, pricing, and examples.
Start building on one key.
Building with a team?
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