HedraText to imageComing soon

reve-21

Name: reve-21
Brand: Hedra

reve-21 is a text to image tool from Hedra that runs in the background and returns images. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Priced by usage

Pricing

$0.325 per generation. Billed on num_outputs, default 1. The final charge comes from usage.

Limits

Runs: In the background
Returns: image
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt` required	text	—	Generation prompt. From 1 to 4000 characters.
`aspect_ratio` required	one of 4:1, 3:1, 21:9, 2:1, 17:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, 1:2, 1:3, 1:4	—	Output aspect ratio.
`num_outputs`	one of 1	1	Number of outputs generated per job. Only 1 is supported.
`output_format`	one of jpeg, png, webp	—	Output image format.
`enhance_prompt`	true or false	false	Rewrite the prompt before generation. An LLM expands it into a fuller description and the model receives that text instead of the submitted one; the result's `prompt` reports what ran.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "hedra",
    "model": "reve-21",
    "input": {
      "prompt": "<prompt>",
      "aspect_ratio": "4:1"
    }
  }'