Image

FLUX.3 Text to Image

Credit-based pricing.

Try FLUX.3 Text to Image →Compare models

Output

image

Aspect ratio

auto, 21:9, 2:1, 16:9, 3:2, 7:5, 4:3, 5:4, 1:1, 4:5, 3:4, 5:7, 2:3, 9:16, 1:2

Resolution

768sq, 1k, 2k, 4k

Example prompt

A luminous glass greenhouse floating above a misty alpine lake at sunrise, cinematic architectural photography, intricate reflections.

Try this prompt →

LLM-ready

API & LLM schema

Exact request contract for this model. Agents can fetch it from /api/v1/models?id=blackforestlabs/flux-3/text-to-image.

POST/api/v1/generate12 fields · 2 required

Field	Type	Requirement	Contract
`model_id`	constant	Required	ArtEmotion model identifier.
`extra`	object	Optional	Model-specific settings may also be nested here.
`max_credits`	number	Optional	Reject before submission if the estimated list price exceeds this cap. · Range: 1–…
`webhook_url`	string	Optional	Format: uri
`webhook_secret`	string	Optional	Optional model input.
`folder_id`	string	Optional	Optional model input.
`prompt`	string	Required	Optional model input.
`aspect_ratio`	string	Optional	Allowed: auto, 21:9, 2:1, 16:9, 3:2, 7:5, 4:3, 5:4, 1:1, 4:5, 3:4, 5:7, 2:3, 9:16, 1:2
`resolution`	string	Optional	Allowed: 768sq, 1k, 2k, 4k
`enable_prompt_expansion`	boolean	Optional	Default: false
`safety_tolerance`	integer	Optional	Default: 2 · Range: 0–4
`output_format`	string	Optional	Optional model input.

Minimal request example

{
  "model_id": "blackforestlabs/flux-3/text-to-image",
  "prompt": "A luminous glass greenhouse floating above a misty alpine lake at sunrise, cinematic architectural photography, intricate reflections."
}

Raw JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.artemotion.ai/api/v1/models?id=blackforestlabs%2Fflux-3%2Ftext-to-image",
  "title": "FLUX.3 Text to Image generation request",
  "description": "Request body accepted by POST /api/v1/generate for blackforestlabs/flux-3/text-to-image.",
  "type": "object",
  "properties": {
    "model_id": {
      "type": "string",
      "const": "blackforestlabs/flux-3/text-to-image",
      "description": "ArtEmotion model identifier."
    },
    "extra": {
      "type": "object",
      "additionalProperties": true,
      "description": "Model-specific settings may also be nested here."
    },
    "max_credits": {
      "type": "number",
      "minimum": 1,
      "description": "Reject before submission if the estimated list price exceeds this cap."
    },
    "webhook_url": {
      "type": "string",
      "format": "uri",
      "maxLength": 2048
    },
    "webhook_secret": {
      "type": "string",
      "maxLength": 512
    },
    "folder_id": {
      "type": "string"
    },
    "prompt": {
      "type": "string",
      "maxLength": 10000
    },
    "aspect_ratio": {
      "type": "string",
      "enum": [
        "auto",
        "21:9",
        "2:1",
        "16:9",
        "3:2",
        "7:5",
        "4:3",
        "5:4",
        "1:1",
        "4:5",
        "3:4",
        "5:7",
        "2:3",
        "9:16",
        "1:2"
      ]
    },
    "resolution": {
      "type": "string",
      "enum": [
        "768sq",
        "1k",
        "2k",
        "4k"
      ]
    },
    "enable_prompt_expansion": {
      "title": "Prompt expansion",
      "default": false,
      "type": "boolean"
    },
    "safety_tolerance": {
      "title": "Safety tolerance",
      "default": 2,
      "type": "integer",
      "minimum": 0,
      "maximum": 4,
      "multipleOf": 1
    },
    "output_format": {
      "type": "string"
    }
  },
  "required": [
    "model_id",
    "prompt"
  ],
  "additionalProperties": false
}

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FAQ

How much does FLUX.3 Text to Image cost on ArtEmotion?

Credit-based pricing. You pay in ArtEmotion credits — every plan and top-up converts USD to credits at a fixed rate.

Do I get my credits back if FLUX.3 Text to Image fails?

Yes — failed generations are never charged. The credits are released back to your balance automatically.

Can I call FLUX.3 Text to Image from the API?

Yes. Use POST /api/v1/generate with model_id: "blackforestlabs/flux-3/text-to-image". See the API reference for the full schema.

Where are my generations stored?

Every output is saved to your personal Library. You can export or delete everything any time from Privacy & deletion.

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