TTS API vs ElevenLabs

A direct comparison of the TTS API vs ElevenLabs for developers building voice-powered apps. PixelAPI's text-to-speech API converts any text to natural-sounding MP3 audio in 33 languages, with voice design (describe a voice in plain text) and voice cloning (upload a reference recording). At $0.0018 flat per request — no per-character metering — it costs a fraction of ElevenLabs Flash's $0.05 per 1,000 characters. For a typical 200-character TTS call, ElevenLabs costs ~$0.010; PixelAPI costs $0.0018. 5,000 free credits (7-day trial), no credit card.

Quick start — one API call

Sign up, copy your key from the dashboard, and POST your text. The endpoint returns a generation id; poll until status=completed, then download the MP3 from output_url.

# Voice design — no reference audio needed
curl -X POST https://api.pixelapi.dev/v1/tts/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "text=Hello, welcome to our platform." \
  -F "language=en" \
  -F "voice_description=young woman, warm and friendly"
# {"id": "uuid", "status": "queued", "credits_used": 1.8, ...}

# Poll until completed
curl https://api.pixelapi.dev/v1/tts/status/UUID \
  -H "Authorization: Bearer YOUR_API_KEY"
# {"status": "completed", "output_url": "https://cdn.pixelapi.dev/..."}

pip install pixelapi
# ---
from pixelapi import PixelAPI

client = PixelAPI(api_key="YOUR_API_KEY")
result = client.tts(
    text="Hello, welcome to our platform.",
    language="en",
    voice_description="young woman, warm and friendly"
)
result.save("output.mp3")  # MP3 audio

npm install pixelapi
// ---
import { PixelAPI } from "pixelapi";

const client = new PixelAPI({ apiKey: process.env.PIXELAPI_KEY });
const result = await client.tts({
  text: "Hello, welcome to our platform.",
  language: "en",
  voiceDescription: "young woman, warm and friendly",
});
await result.save("output.mp3"); // MP3 audio

composer require pixelapi/pixelapi
// ---
<?php
use PixelAPI\Client;

$client = new Client(getenv("PIXELAPI_KEY"));
$result = $client->tts([
    "text"              => "Hello, welcome to our platform.",
    "language"          => "en",
    "voice_description" => "young woman, warm and friendly",
]);
file_put_contents("output.mp3", $result->getBody());

gem install pixelapi
# ---
require "pixelapi"

client = PixelAPI::Client.new(api_key: ENV["PIXELAPI_KEY"])
result = client.tts(
  text: "Hello, welcome to our platform.",
  language: "en",
  voice_description: "young woman, warm and friendly"
)
File.binwrite("output.mp3", result.body)

go get github.com/pixelapi/pixelapi-go
// ---
import "github.com/pixelapi/pixelapi-go"

client := pixelapi.New("YOUR_API_KEY")
result, err := client.TTS(pixelapi.TTSRequest{
    Text:             "Hello, welcome to our platform.",
    Language:         "en",
    VoiceDescription: "young woman, warm and friendly",
})
if err != nil { panic(err) }
result.Save("output.mp3")

TTS API vs ElevenLabs: pricing comparison

ElevenLabs charges per character; PixelAPI charges a flat rate per request regardless of whether your text is 50 characters or 500. The cost difference grows significantly as request length increases.

Pricing verified from each rival's public pricing page September 2026. Note: PlayHT was acquired by Meta in July 2025 — check play.ht for current availability. PixelAPI's flat-rate model means costs are predictable: 1,000 short IVR prompts cost exactly $1.80 regardless of how many characters each contains.

PixelAPI TTS API vs ElevenLabs — key differences

What you get back

Common workflows

The TTS API powers these production use cases. Each links to a setup guide:

Integrations & SDKs

TTS API vs ElevenLabs — and other alternatives

Rate limits & error handling

The TTS endpoint shares the same per-plan rate limits as the rest of the PixelAPI platform: 20 requests/minute on the free trial, 60 on Starter, 120 on Pro, and 300 on Scale — with 3/10/20/50 concurrent jobs respectively. Exceeding the limit returns HTTP 429 with a Retry-After header.

# Python SDK handles 429 automatically with exponential backoff
from pixelapi import PixelAPI
client = PixelAPI(api_key="...", max_retries=4)
result = client.tts(text="Hello world", language="en")  # auto-retries on 429

TTS jobs are asynchronous. Status values returned by GET /v1/tts/status/{id}:

• queued — job accepted and waiting for a worker
• processing — audio is being synthesised
• completed — output_url is ready to download
• failed — credits are automatically refunded; inspect the error field

Transient failures are auto-retried up to twice server-side before surfacing as failed. Credits are never charged for a failed job.

Frequently asked questions