SB

Available through Replicate — FLUX

flux-2-klein-4b

Fast, cheap drafts (FLUX.2 klein) · Replicate

What it takes and gives

a prompt + an image → an image · seed, aspect ratio

Licence

Apache 2.0 · Commercial use: yes

Made by Black Forest Labs

Every model's licence

Lifecycle

New

Also runs on

Run it from code

With a team API key and a project id. The run answers with a jobId; poll GET /api/v1/runs/{jobId} for the image.

# 1. Once: a workflow that runs flux-2-klein-4b (returns workflowId)
curl -X POST "https://app.sushibelt.ai/api/v1/workflows" \
  -H "Authorization: Bearer $SUSHIBELT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"flux-2-klein-4b","projectId":"'"$PROJECT_ID"'","steps":[{"key":"subject","type":"TextEntry","config":{"text":"a red fox in the snow","apiInputKey":"prompt"}},{"key":"image","type":"DiffusionWorker","config":{"providerKey":"replicate","model":"flux-2-klein-4b"},"inputs":["subject"]}]}'

# 2. Run it, with your own prompt
curl -X POST "https://app.sushibelt.ai/api/v1/workflows/$WORKFLOW_ID/runs" \
  -H "Authorization: Bearer $SUSHIBELT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"inputs":{"prompt":"a red fox in the snow"}}'

Where it runs

In app · own key on APIRuns in the app on Sushibelt's Replicate account. Through the API it runs only on your own Replicate key.

Runs on your own Replicate key, or on credits

On your own key, Replicate’s terms apply to your team directly.

FLUX.2 [klein] 4B on Replicate: a tenth of a cent an image, and it can start from a connected image.

text-to-imageimage-to-image

Workflows