Platform
Catalog/Generate speech/Speech
TEXT → AUDIO · OpenAI

Speech

Natural speech from text in 11 voices. Attach a text output to read it aloud.
High censorship
PRICE0.02 creditsper 1k chars
AVG TIME~3.0sestimate
OUTPUTaudiosync
Open in playground

Inputs

promptoptional · text
textoptional · Text — artifact id or https URL
params.voicealloy | ash | ballad | coral | echo | fable | nova | onyx | sage | shimmer | verse · default coral
Monthly estimate
1,000 × 0.02 credits20.00 credits
curl https://platform.4i.app/api/v1/run \
  -H "Authorization: Bearer $FOURI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "service": "openai/gpt-4o-mini-tts",
    "input": {},
    "params": {
      "voice": "coral"
    }
  }'
Every output has an artifact_id. Pass it as input to any compatible service.
Get your API key →