VibeVoice 1.5B API

vibevoice
VibeVoice 1.5B sets a new benchmark for realistic and customizable AI voice synthesis, delivering natural and expressive speech tailored to diverse applications.
Output
$0.0008667 / sec

How to use VibeVoice 1.5B API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to vibevoice.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/tts",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "vibevoice",
      "text": "Hello from AI/ML API"
    },
)
print(r.json()["audio"])  # URL to the generated audio
const r = await fetch("https://api.aimlapi.com/v1/tts", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "vibevoice",
    "text": "Hello from AI/ML API"
  }),
});
const { audio } = await r.json();
console.log(audio); // URL to the generated audio
curl -X POST https://api.aimlapi.com/v1/tts \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"vibevoice","text":"Hello from AI/ML API"}'

# the JSON response contains "audio" — a URL to the generated speech

OpenAI-compatible — swap the base URL and it works with your existing SDK.

VibeVoice 1.5B API Pricing

TypePrice
Output
$0.0008667 / sec

VibeVoice 1.5B Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
TTS Arena
954
Human preference Elo from blind pairwise listening comparisons of speech samples, measured independently by Artificial AnalysisSourceSeptember 28, 2026

VibeVoice 1.5B vs other models

ModelInputOutputContextBest for
$0.0008667 / sec
Speech synthesis
$130 / 1M characters
$130 / 1M
Speech synthesis
$130 / 1M characters
$0.13 / 1M tokens
Speech synthesis
$78 / 1M characters
$0.078 / 1M tokens
Speech synthesis
$13 / 1M characters
$0.013 / 1M tokens
Speech synthesis

Frequently asked questions

VibeVoice 1.5B takes text as input and returns audio.

VibeVoice 1.5B is priced at $0.0008667 / sec.

VibeVoice 1.5B is billed per generation — a fixed charge per output rather than by prompt length.

VibeVoice 1.5B was built by Microsoft.

Send a request to https://api.aimlapi.com/v1/tts with vibevoice as the model id.

Yes. VibeVoice 1.5B is served through AI/ML API, so the same key and endpoint format used for other models applies.

It is designed for generating multi-speaker dialogue with natural-sounding voices in an efficient text-to-speech pipeline.

Start building with VibeVoice 1.5B

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