ReplicateText to speechComing soon

google/gemini-3.1-flash-tts

Name: google/gemini-3.1-flash-tts
Brand: Replicate

google/gemini-3.1-flash-tts is a text to speech tool from Replicate that runs in the background and returns audio. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: audio
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
`text` required	text	—	The text to convert to speech. Supports markup tags like " "[sigh], [laughing], [whispering], [shouting], [extremely fast] for " "expressive delivery. Maximum 4,000 bytes.
`voice`	JSON	Kore	Voice to use for speech generation
`prompt`	text	Say the following.	Style instructions to control how the text is spoken. " "Use natural language to describe the desired tone, pace, accent, " 'and emotion. For example: "Say this in a calm, professional tone" ' 'or "Speak with excitement and energy". Maximum 4,000 bytes.
`language_code`	JSON	en-US	Language for the speech output

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": "replicate",
    "model": "google/gemini-3.1-flash-tts",
    "input": {
      "text": "<text>"
    }
  }'