CAPI
Models/Flux
Image

Flux

by Black Forest Labs

Flux image generation with Dev, Pro, and 2 Klein, plus single-image editing with Dev and Pro.

Get API KeyRead the docs

Capabilities

  • Text to image
  • Edit image
  • LoRA

Available models

Pass any of these IDs in the model field.

Model IDDetailPrice
flux-pro-1.11024×1024$0.040 / call
flux-dev1024×1024$0.030 / call
flux-2-klein1024×1024$0.020 / call

Pricing starts at

$0.030 / call

Pay only for what you use. Each response returns the exact amount settled against your balance — no subscriptions, no minimums.

Quickstart

Flux · flux-pro-1.1

cURL
curl -X POST https://capi.ai/api/v1/images/generations \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"model":"flux-pro-1.1","prompt":"A lighthouse at dusk"}'

More Image models

View all
Image

Flux 2

Black Forest Labs

Flux 2 API access for text-to-image and remix-image with strong prompt adherence from Black Forest Labs.

from $0.070 / callView
Image

Flux Kontext

Black Forest Labs

Flux Kontext API access for in-context image editing, local edits, style transfer, and character consistency.

from $0.110 / callView
Image

GPT Image

OpenAI

OpenAI GPT Image for instruction-following generation and conversational image editing.

from $0.020 / callView