Kokoro 82M
Kokoro 82M text to speech — the cheapest AI speech available, billed on input length.
The cheapest speech model on YepAPI by a wide margin — roughly 24× less per character than the mid-tier models — while still covering 8 languages with 54 named voices. Open weights, 82M parameters.
No credit card required. Takes 30 seconds.
2,400+
Developers
1.2M+
API calls served
100+
Endpoints
$0.01
Per call
Yep, that's it.
Playground coming soon — use the API endpoint directly with your API key.
Pricing
Per character: $0.0014/1K chars
Endpoint
/v1/media/queue
Strengths
At a fraction of a cent per thousand characters it is roughly 24× cheaper than the mid-tier models.
American and British English, Spanish, French, Hindi, Italian, Japanese, Portuguese, and Chinese.
Voices are prefixed by language and gender — `af_` American female, `bm_` British male, `jf_` Japanese female.
An open model you can evaluate and reason about, not a closed endpoint.
Quick start
Copy this snippet and start making calls with Kokoro 82M.
// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "hexgrad/kokoro-82m",
"prompt": "Every article on the site now has an audio version, generated automatically the moment it publishes.",
"options": {
"voice": "af_bella"
}
}),
});
const { data } = await res.json();
const jobId = data.jobId;
// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }Why use Kokoro 82M through YepAPI?
Kokoro 82M API — the cheapest AI text-to-speech
Kokoro 82M is a lightweight, open-weight text-to-speech model from hexgrad. At 82M parameters it is by far the cheapest speech model on YepAPI — roughly 24× cheaper per character than the mid-tier models — while still covering 8 languages with 54 named voices.
That price makes bulk narration viable: audio versions of every article, every product description, every changelog entry. Billed at $0.0014 per 1,000 characters.
Start generating in 30 seconds
$5 free credit on signup. No credit card required. Pay per call.
What developers say
“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
The cheapest speech model on YepAPI by a wide margin — roughly 24× less per character than the mid-tier models — while still covering 8 languages with 54 named voices. Open weights, 82M parameters.
Pricing for Kokoro 82M through YepAPI is based on usage. No monthly minimums — you only pay for what you use.
Sign up for a free API key, then send requests to the /v1/media/queue endpoint.
Ready to use Kokoro 82M?
$5 free credit on signup. No credit card required. Pay per call.
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