FLUX.2 [klein] 4B

{
  "id": "flux-2-klein-4b",
  "object": "model",
  "created": 1768435200,
  "owned_by": "black-forest-labs",
  "name": "FLUX.2 [klein] 4B",
  "api": {
    "types": [
      "images"
    ]
  },
  "limits": {
    "context": null,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "image"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": null,
  "features": [],
  "info": {
    "status": "active",
    "release_date": "2026-01-15",
    "knowledge_cutoff": null,
    "description": "Fastest and most lightweight FLUX.2 model for image generation and editing, with open weights.",
    "docs": "https://docs.bfl.ml/flux_2/flux2_overview",
    "verified_at": "2026-10-11"
  }
}