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Model APIs · Video generation

FLUX 3 API

Run FLUX 3 by Black Forest Labs through one OpenAI-compatible endpoint. Pay per use against your GPU.ai balance — no instance to rent, no deployment to manage.

Available now
Pricing

FLUX 3 API pricing

Live catalog rates, billed per use against your GPU.ai balance. No subscriptions, no minimums.

TierRate
Serverless
Per second of video: $0.170Per clip (from): $0.850

Rates are read hourly from the live model catalog and metered per request.

Quick start

Call FLUX 3 in one request

Any OpenAI SDK works — set the base URL to https://api.gpu.ai/v1 and use your GPU.ai API key.

curl
# Start a generation, then poll it until it completes.
curl https://api.gpu.ai/v1/videos \
  -H "Authorization: Bearer $GPUAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpuai/flux-3",
    "prompt": "A drone shot over a mountain lake at dawn"
  }'

curl https://api.gpu.ai/v1/videos/{video_id} \
  -H "Authorization: Bearer $GPUAI_API_KEY"
Details

FLUX 3 on GPU.ai

Model idgpuai/flux-3
ModalityVideo generation
AuthorBlack Forest Labs
Context window
Streaming
Aliases
FAQ

FLUX 3 API questions

How much does the FLUX 3 API cost?

FLUX 3 on GPU.ai currently costs $0.170 (per second of video), $0.850 (per clip (from)). There are no subscriptions or minimums — usage is billed against your GPU.ai balance as you go.

Is the FLUX 3 API OpenAI-compatible?

Yes. Point any OpenAI SDK at https://api.gpu.ai/v1 with a GPU.ai API key and request model "gpuai/flux-3" — no proprietary client needed.

How does billing work?

Generation models bill per output (per image, or per second of video) at the listed rate, metered per request against your GPU.ai balance.